ML20339A432
| ML20339A432 | |
| Person / Time | |
|---|---|
| Issue date: | 12/02/2020 |
| From: | NRC/OCIO |
| To: | |
| Shared Package | |
| ML20339A429 | List: |
| References | |
| FOIA, NRC-2018-000831 | |
| Download: ML20339A432 (197) | |
Text
Note to requester: The attachments are immediately following.
From: Hiser, Matthew Sent: Friday, January 26, 2018 8:57 AM To: Tregoning, Robert; Audrain, Margaret
Subject:
FW: Requesting DE Management Review/Approval for the CMB RIC Posters Attachments: RIC Poster on Harvesting .pptx; RIC Poster on AM.pptx Importance: High FYI - latest status of RIC poster ...
From: Frankl, Istvan Sent: Wednesday, January 24, 2018 4:08 PM To: Thomas, Brian <Brian.Thomas@nrc.gov>; Regan, Christopher <Christopher.Regan@nrc.gov>
Cc: Moyer, Carol <Carol.Moyer@nrc.gov>; Hull, Amy <Amy.Hull@nrc.gov>; Hiser, Matthew <Matthew .Hiser@nrc.gov>;
Purtscher, Patrick <Patrick.Purtscher@nrc.gov>
Subject:
Requesting DE Management Review/Approval for t he CM B RIC Posters Importance: High Brian and Chris, I have attached the two CMB RIC posters for your review and approval.
- Thanks, Steve From: Hiser, Matthew Sent: Wednesday, January 24, 2018 9:45 AM To: Frankl, Istvan <lstvan.Frankl@nrc.gov>
Cc: Purt scher, Patrick <Patrick.Purtscher@nrc.gov>
Subject:
FW: Gentle Reminder for Presentation Submissions to OGC/QTE Importance: High Hi Steve, I have put the harvesting poster info into the RIC template. This is largely the same information that was used for the PLiM meeting late last year. Please review and send on to division management for approval if you approve.
Thanks!
Matt Matthew Hiser Materials Engineer US Nudear Regulatory Commission I Office of Nuclear Regulatory Research Division of Engineering I Corrosion and Metallurgy Branch Phone: 301-415-2454 I Office: TWFN 10062 Matthew.Hiser@nrc.gov
From: RICMST Resource Sent: Wednesday, January 24, 2018 8:09 AM To: Bemardo, Robert <Robert.Bernardo@nrc.gov>; Hall, Victor <Victor.Hall@nrc.gov>; Wilson, Joshua
<Joshua.Wilson@nrc.gov>; Jones, Heather <Heather.Jones@nrc.gov>; Bridge, Joanna <Joanna.Bridge@nrc.gov>;
Mendiola, Mary <Mary.Mendiola@nrc.gov>; Zuberi, Sardar <Sardar.Zuberi@nrc.gov>; Dembek, Stephen
<Stephen.Dembek@nrc.gov>; Yadav, Priya <Priya.Yadav@nrc.gov>; Gifford, Ian <lan .Gifford@nrc.gov>; Smith, Todd
<Todd.Smith@nrc.gov>; Orf, Tracy <Tracy.Orf@nrc.gov>; Cruz, Holly <Holly.Cruz@nrc.gov>; Morey, Dennis
<Dennis.Morey@nrc.gov>; Oberson, Greg <Greg.Oberson@nrc.gov>; Hull, Amy <Amy.Hull@nrc.gov>; Savoy, Joanne
<Joanne.Savoy@nrc.gov>; Ralph, Melissa <Melissa.Ralph@nrc.gov>; King, Shannon <Shannon.King@nrc.gov>; Hiser, Matthew <Matthew.Hiser@nrc.gov>; Armstrong, Kenneth <Kenneth.Armstrong@nrc.gov>
Cc: RICMST Resource <RICMST.Resource@nrc.gov>; Kipfer, Lorna <Lorna.Kipfer@nrc.gov>
Subject:
Gentle Reminder for Presentation Submissions to OGC/QTE Importance: High Good Morning ePoster and Digital Presenters, This is a gentle reminder to do the following:
- Obtain managerial approval for your ePoster and Digital Presentation
- If your poster has been selected for OGC Review please submit and cc RICMST. Resource@nrc.gov
- Submit your poster to QTE for Level 1 review (note all ePosters and Digital Presentations should be submitted to QTE for final reviews)
Refer to ePoster and Digital Presentation Flowchart for further guidance (also attached). It is important that you adhere to the due dates as close as possible. If you are unable to meet this deadline please contact me as soon as possible via email Brenett.warren@nrc.gov or call me at 415-3114.
Once again thank you, Program Spt:c-ialist Office of Nuclear Reactor Regulation NRR/D:'v1PS/RISB Location: 013D5
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Follow us on Twitter@nrcgov_ric 2
Follow us on Twitter @nrcgov_ric Review of Additive Manufacturing by Direct Metal Laser Melting A. Hull, T. Herrity, and C. Moyer, U.S. Nuclear Regulatory Commission (NRC}
Background and Motivation Current Activities Path Forward The NRC has been informed that Additively Manufactured (AM) parts NRC has recently undertaken an effort, to develop a strategic The NRC is evaluating additive manufacturing within the framework of are being considered for applications in the operating fleet within a few approach to creating an agency action plan to address additive manufacturing other advanced manufacturing technologies. Additive Manufacturing has been years. The first industry alert in June 2017 concerned using the direct metal laser for reactor materials and components (AM-RMC). Economic challenges and identified as an area of potential future utilization by the nuclear industry-"when" melting (DMLM) method to manufacture parts for reactor components. A limited budgets have restricted the resources available to support new research, and "how many" are the questions.
subsequent scoping study by RES staff is providing more insight into the technical including those related to advanced manufacturing. Given this constrained NRC interest areas include the quality, properties, and structural issues that must be addressed to assure reliability of specific DMLM-produced budget environment, aligning interests and leveraging with other organizations is performance of AM parts, including their inspectability. The service pertormance components accepted by NRC, including design, precursor materials, finished importantto allow maximum benefit for future research programs and aging degradation of AM parts are critical. It will be essential to make a material properties, structural integrity, nondestructive evaluation, and quality comparison of pertormance of parts from AM and conventional manufacturing assurance. process The strategic approach is to focus on topic areas of interest identified at the AM-RMC Public Meeting. Challenges to be addressed include limited understanding of One of the activities in this scoping study was to host a Nov 28-29 Quality of AM materials and components for NPPs acceptable ranges of variation for key manufacturing parameters, limited public meeting "Additive Manufacturing for Reactor Materials and Components" understanding of key failure mechanisms and material anomalies; lack of industry Codes and standards aspects of AM at NRC Headquarters. Presentations from the 28 speakers from American and databases, and lack of industry specifications and standards.
Properties and structural pertormance international industry, EPRI, NEI, DoD facilities, DOE and National Laboratories, Codes and standards aspects of AM is a key to successful ASME, ASTM, ANSI, FAA, NASA, and NIST are available in ADAMS (ML17338A880). Service pertormance / aging degradation implementation.
II ~
International American ASTM OrKanization Society of International For Mt'!'chanical -A-,"1E Star.dardizatio11 " Engineers IEE~ .::;"'
SAE International SE Arrlrican Weldin!
Society
!n~titute of Electrical and Vt*n***" 0 Electronics Engineers IPC -
MITA MEOIUllMAGlffG Association for the Advancement of Medical AAM\-1 Association Connecting Q PC, ll[(~\IHOft'f'~'l<l Instrumentation Electronics
- tl't'l,IO* Of - - lndustrle, 11M America Makes Metal Pol'lder Industries Federation m
Westinghouse's DMLM Examples: thimble plugging device, SDOs involved with AM Standardization, J. McCabe, Presentation at DMLM Showcase at GE-H Advanced Manufacturing Works, Greenville, SC. advanced debris filtering bottom nozzle, Bill Cleary, Presentation at Public Meeting AM-RMC, Nov. 29, 2017 C. Mover ohotoaraoh Dec. 11 2017 Public MeetinoAM-RMC, Nov. 28, 2017.
Harvesting of Aged Materials from Nuclear Power Plants M. Hisera, P. Purtschera, P. Ramuhallib, A. B. Hulla, and R. Tregoninga; au.s. Nuclear Regulatory Commission (NRG), bPacific Northwest National Laboratory (PNNL)
Background and Motivation Potential Criteria for Harvesting Prioritization Harvesting Database Recent developments in the nuclear industry include stronger interest in extended A number of criteria may be considered when prioritizing the data needs for The NRC is pursuing the development of a database for sources of materials for plant operation and plans to shut down a number of nuclear power plants (NPPs). In harvesting, including: harvesting, which could include both previously harvested materialsand those the U.S., there is strong interest in extending NPP lifespans through subsequent license
- Applicability of harvested material for addressing critical gaps available for future harvesting. This database would allow for aligning of high-priority renewal (SLR) from 60 to 80 years. _ Harvesting for critical gaps prioritized over less essential technical gaps. data needsto the available sources of materials. The level of detail for the database Extended plant operation and SLRraise a number of technical issues that may should be appropriate for the factors influencing decision-making. NRC is interested in
- Ease of laboratory replication of the degradation scenario engaging with other organizations in developing the database requ ire further research to understand and quantify aging mechanisms. U.S. utilities and the U.S. Nuclear Regulatory Commission (NRC) have focused on the aging of _ For example, simultaneous thermal and irradiation conditions are difficult to systems, structures, and components and in particular four key SLR issues: reactor replicate, and accelerated aging may not be feasible for a mechanism Path Forward pressure vessel (RPV) embrittlement, irradiation-assisted stress corrosion cracking of sensitive to dose rate.
reactor internals, concrete structures and containment degradation, and electrical
- Unique field aspects of degradation NRC's experience is that harvesting can yield highly representative and valuable data cable qualification and condition assessment. _ For example, unusual operating experience or legacy materials (fabrication on materials aging, but these efforts will be challenging. Having a clearly defined Meanwhile, in recent years, a number of NPPs, both in the U.S. and internationally, methods, etc.) no longer available. objective and early engagement with other stakeholders are keys to success. As have shut down or announced plans to shut down for various reasons, including
- Fleet-wide vs. plant-specific applicability of data specific harvesting opportunities are identified through thisstrategic approach, the economic, political, and technical challenges. Unlike in the past when there were _ Greater value in addressing an issue applicable to a larger number of plants. NRC welcomes opportunities for cooperation and leveraging of resources with other very few plants shutting down, these new developments provide opportunities for interested research organizations.
- Harvesting cost and complexity Plate A(41 .22" wide) harvesting components that were aged in representative light water reactor (LWR) environments. _ For example, harvesting un-irradiated concrete or electrical In a third related development, economic challenges and limited budgets have cables less expensive and less restricted the resources available to support new research, including harvesting complex than harvesting from the programs. Given this constrained budget environment, aligning interests and reactor internals or RPV.
leveraging with other organizations is important to allow maximum benefit and value Plate C(7.8" wide) for future research programs.
- Availability of reliable in-service inspection (ISi) techniques for the Current Activities material/ component
_ If mature inspection methods exist NRC has recently undertaken an effort, with the assistance of Pacific Northwest and are easy to apply, harvesting National Laboratory (PNNL), to develop a strategic approach to harvesting aged may be lessvaluable.
materialsfrom NPPs. Due to limited opportunities, past harvesting efforts have been
- Availability of materialsfor harvesting reactive to individual plants shutting down and beginning decornrnissioning. Given
- Timelinessof the expected research the expected availability of materialsfrom numerous plants and anticipated results relative to the ob1ective.
research needs to better understand aging out to 80 years of operation, the NRC is pursuing a more proactive approach to prioritize the data needs best addressed by harvesting and identify the best sources of materialsto addresshigh-priority data needs for regulatory research.
The first step in this strategic approach is to prioritize data needs for harvesting. A data need describes a particular degradation scenario and should be defined with as much detail as appropriate in terms of the material (alloy, composition, etc.) and environment (temperature, fluence, chemistry, etc.). Lifting operation for irradiated Example of reactor internals harvesting plan materials transport cask
Subj ect: Harvesting Prioritization Location: Kenn's office Note to requester: The attached Excel file, "Harvesting Needs Prioritization" is immediately following.
Start: Wed 10/3/2018 2:00 PM End: Wed 10/3/2018 2:30 PM Show Time As: Tentative Recurrence: (none)
Meeting Status: Not yet responded Organizer: Hiser, Matthew Required AttendeesMiller, Kenneth A I 11 \ ! II ' ~j I I I 1 1 11 [ ,1 I **
Latest spreadsheet attached. Please let me know if you have any questions.
Thanks!
Matt
Criteria T itle Description Scoring Guidance H = high risk significance/ little to no available data MH = Medium-high risk significance/
limited data available Crilicalness of Technical Gap Harvesting to address critical gaps should be prioritized over less M = Moderate risk significance I some Addressed essential technical saps data available ML= low to moderate risk signficance / H = High sufficient data available for regulatory MH = Medium-high decisions M = Medium L = Low risk significance I large amount ML= Medium-low of data available L = Low Key considerations are the ease of laboratory replication of aging H = Nearly Impossible to replicate mechanism and unique. field aspects of the aging mechanism. service enviroment I critically important Degradation mechanisms that are harder to replicate with simulated to use harvested materials aging conditions would be of higher priority for harvesting, For MH = Challenging to repl icate service example, simultaneous thermal and irradiation conditions arc enviromenl / important lo use harvested difficult to replicate outs ide of the plant environme nt. Alternatively, materials Importance of Harvested accelerated aging may not be feasible for a mechanism sensitive to M = Possible w ith some limitations to Materials over Laboratory Aging dose rate. T hese two degradat ion mechanisms may be best evaluated replicate service enviroment / moderately using harvested materials. for unique field aspects, legacy materials important to u:.e harve:.ted material:.
(e.g., fabrication methods, comr>0sition) that are no longer available, ML= Not challenging to replicate service but may play an important role in a potential degradat ion enviroment I less important to use mechanism, would have a higher priority than harvesting materials harvested materials that can be oblained from other sources with represen1ative L = Very easy to r eplicate service properties. enviroment I not important to use harvested materials H = All plants There is greater value in developing knowledge to address an issue MH=AII PWRs Applicability to US Operating that may be appl icable to a larger number of plants compared to one M = All BWRs or most PWRs Fleet that may only affect a relatively small number of plants. ML= ~10-15 plants L = <5 plants H = No or very limited inspection methods available / low confidence in AMPs If mature inspection methods exist and are easy to apply to monitor MH = Limited inspection met hods degradation, harvesting may be less valuable. lfinspecl ion methods available / low-to-moderate confidence i n Regulatory Considerations do not exist. harvesting may be essential 10 ensure confidence in the AMPs Related to Inspections and AMPs assessment of age-related degradation in that particular M = Some inspection methods available I component.T he less confidence that NRC staff has in the moderate confidence in AMPs efTectiveness of the relevant AMP, the higher priority for harves1ing. ML= Good i nspection methods available
/ medium-high confidence in AMPs L = Effective, well-accepted inspection methods exist/ high confidence in AMPs H = Highly irradiated (>5 dpa)
Activities with higher costs and comp lexity are less attractive than MH = Lightly irradiated / contaminated s imilar activities wilh lower costs and 1hat are s impler to execute .. M = Minimal contamination or high effort Harvesting cost and complexity For example, harvesting unirradiated concrete or electrical cables is unirradiated less expensive and less complex than harvesting from the RPV ML= Unirradiated, moderate effort internals or 1he RPV. expected L = Unirradiated, low effort expected T he ability of a potential harvesting program to provide timely results to support either a technical or regulatory need is important.
Timeliness of results Having high confidence that results w ill be timely increases the priority.
Availability of m aterials for T he availability of materials to harvest for a particular dala need is harvesting c\e.arly essential and increases the priority.
Basic Info Technlcal C riteria Proiect s-- Ifie Cost I Complexity Av11llablllty of Purposa / TSting C riticalness of Technical lmporta11ce of Harvested Regulatory Considerations Timeliness. of Need De.scrlpUon Technic al K nowledge Gained Al)l)llcabllhy to US Oper ating Fleet Scor e Average Basi s for Tec hnic al Priority m aterials for Plannad Gap Addressed Mal*rial& over Laboratory Aging R elated to Inspections and AMPS results harvesting RPV Score Comment Score Comment Scor,e Comment Score Comment Score Comment The results would be limefy T tie aitteou:atton models if they are have the le-ast amoui,t or d9...,91oped This work has beE!fl supporting information Material is irradiated before 2024 or done before but the adC,itiOna!work Shol.ldl'ocuson Ther~ ar e not many studies that irTadiate 6 to 9 ind"ies Vv'hlle the Information stioold be generieally appri(;al)le, ii. for compared t o other 9$pe,cls related to RPV embrittleme nt. HOWIJ'ler, The 8'tlenut1tion stuc,y ls s llgtitty rnc,re important to me,, jusl which will .iffect all a,spectsofspecimen pr eparation anc, so tocoincicle additional Othe r than Zion higer fluE!floeS to of ste.el so, from that some reason, the results .are studies to date have because there are fewer such testing. Fisther. rlformaoon materials. I'm RPV - Hl!l'ftuence&hlgh Meast.1re fluenoe, verify that the standpoint, getting only appllc&ble to Mhlgh fluenceM vahd aled the st!Jdles that have been oone. taking !Speclmeos at bel.ng collected n04 owareof Shift Y'eSS91wi1h well- toughn.ess. & CMmiStry as attenuation trends specimens from an RPV materials/locatiOns. this might conservaUvism 04 ex isting Being able to confirm expected several th1ough- from industl)I otha-1 RPVs that etSU!blished unirrediated a fund i an of through- Through thickness section to valida te expected are are importanl for studying result in less relevance I() lower efflenuatiom models ,used Fl trends al higher fluence level s ihdness locations survielanoe are available ior
- ~- nies thickne,!j,JJ nositk;tn fluenoe & ai ter-.iation mQodel, M maintaiined. MH a1ter-.iatiQn M flueooe Ian~ r.-.cludino B V\/R!jl\. Ml I ~ulatorv ermlic.ition$. M WQUld there*fore be uSf;!ful. MH wll increase cosa. raorllff)!jl. harve!jltinn.
oeIIeve Inilt I 1neQnryrea ~ ant.tge 1n Iwe~vea$ ':l'-"-'Ya I I nt;! re,u t, enougll data h<'t!S my mind for ha'Ying vessel confidence ln RPV would be llm efy b9en d ev&loped material IOf 1his study iS embrituema nt 1han v irtually if they are from both lest and that there are no (1.-lestions any other degradation 1hal de...,eloped Othe r than Zion RPV - Samples from virtual)'
Enab&e measure men t of b61t'i 1M Ctiatpy lU1MtliOiio cuNe a nd maste r ~urve Provicl~ date s upporting evolution from the use of CO(relaitlve (Cl'larpy-b;}:§;ed) l0 dii Elcf. fnetiSUf6mEli'll
{f1ac1ure toughness-based)
$UNeillanoe specimens such
!Ml 1M link is w l!II-established. I 'Nil about the representativeness of a,,vy IM d-f'at!0r ifradialiOn compared to the actual Any infO(ma1ion developed we !lltudy. The only r eal Issue Is making su,e ttiat 6v/ uo<UirMandift0 f9i'MiM ei;:,s:ilicable a t the hi9h es1 W hile ir, at.vay!ll usetut to have m<:H'e c,ata, especially on RPV l'ni!IWI!, I fMI 1Mt 6Uf n\6del5 alr:-eacty nave a good 1echnical wti!ch .....111 affect alt aspecb§:6':§;p6tiMeii pr eparetion and Materi1;1I is irradiated before 2024 or so to coincide additional lll.!lterials, I'm n01 aware of 6thui RPVs- ttial are available ior a nv vessel transition temnP.rature TO aonroaches M sav lh.at lhere Is. ML vessel ltracflallon. MH ShOuld be Mnerlcally awllca,ble Ml e)(Mcted fl uences. M ML 0
basis. MH 1estlnn. Information harvesti~.
Pt ojectSpe,cif"te Cost I Comple11.ity Avall.;1b,llltyof Critit.SIIMH Of Te.cll.nieal lmportanre Of Hlll'YHle-d Ne.c:!Oucriptio,n Tlmellnu, of Nl$Ultl ffi-ilt1ri&l1for G;11p Addru**d M;ateri;i,1$ -er Labor.ltory Aging tlar'lle6tln RPV Score Comment Score ComMent RPV
- Higll tk.oMee & l'ligll
$lwt~withw,ell-l.'lo.1$1.Jllt llucnco, tough non,
.$, Chemistry Ma fl.Wlcdon of Through thic~nOS$ N<::lion lo "8!1date ftU8fl09 & atteiwa~on ... SOOt"eiSl.'IHwll.lWI ltlebet@'le MH AQa1n c/\Mge to H wtside MH #NIA embottlement is not A.t!Mu&UOI\ rormula Iha& been l.f!led I OI v@BfS. h'Hlide the l)e(t(jl'I&
ii'$ a008Pted and beli\oed oo/'MlfVatwe. aneltlino if'l$peclodfor Gro~ im~ ;u$00illtod witli fV0$1itd d;iil;,, OUl$ido of betOlne.
Very *m1!J&d H *platlt dal8 exitts worl:l\lftde cpemaps 6 plants) to Proviffl ~t;ii wPPQl"ijng ov~tiQn Eriabllt mN51Jr11meflt crf both oompa,,v to survelieoi:;e ~ T ~ data 1hat do exist oompare fromtlM!use otco"efat.Ma(Olarpy-RPV
- samples .-on, virlually *~Cl'latpy 1rat1sltion cisve embri1tleM8fltl91'10l reae;on.at,1y wl!I, &Jor hawe ~plainabte retiOl'la far t,,,i,od)1oo;l~~;,,,i;1J*~t MH MN/A MH i1f11Y vaSMI end lniJIS\er CUflle IJ'ill'l&ifon lnspeQedfor dfsai,gf9Wll8nt Weha..-e l t'lleptiyi;icalrea&0ntoexpea (fracture tou(,tmess*based) letll)E!tat11eT0 dil'Sefencl!S belweetl ~-peant (ha~,J,!Ued) !Dta atlCI s,u~liel'lce approeches data ..* bllt (BB ooted)we ha'Ve not checi,;ed In that many cases.
Basic Info Technl cal C riteria Proiect s-- Ifie Cost I Complexity Av11llablllty of Purposa / TSting C ritical ness of Technical Importance of Harvested Regul atory Considerations Timel iness. of Need De.scripUon Technic al Knowl edge Gai ned Al)l)llcabllhy to US Oper ating Fleet Scor e Average Basi s for Tec hnic al Priority m aterials for Plannad Gap Addresse d Mal*rial& over Labora tory Aging R elated to Inspe ctions and AMPS results harve sting METALS Score Comment Score Comment Scor,e Com men t Score Comment Score Comment EPRI performing R&D Qn L&boralory replication ~ry NOE for yo<<j swell<<'lg: MRP diffieull to impossibkl to 227 usM J'.)t'imar ily viSual Signifieanea Of void swelling al likely extent of vOO swelli ng in Fils d ais !JiiP fo,r achieve ftuences with l ast.ig, w hidi could <letac.t h ig hec flueBCes is u ncertain, Very high cost fo r Void swell ing, m echanicall PWRs during e:,,:tended operation and elflended p lant representative ii'radiation Applicable to hi9h-fluenoe void swelling once fairly and i nspections may detect h ighly irradiated 1-fil'lh flu8ne& reactor internals roMrtKls. IASCC imaet. on eraeleiM M oooration MH eondilions MH eotnl'M'lc'IGn\S n most PINRS MH I9tlnifieant 3.75 onset Of si J'litieant dearadatiOttl VH inttimal:!i TBD MRP- 227 requires vis.tli:11 Flu~mce k!Yel:s may be inspections, whietl can be achieved by te st reactor fo llowed by volumetric lo lrrad1atlon (e.g . further sue flaws. However~ lack o f Inspections are teQolred, bu1 CGR and FT prq>erties for irradiated irradiation or Zo 1ita weldg). <lat.a above 2 dpa c reates laek ot data above 2 dpa SS weld and HAZ materie ls to inform Little lo no data but would be m ost uncertainty on assumptions cn1ates u ncertainty on High cost for Hiftie, fluenoe ss ~ Ids (>2 Fracture toughnt;!S!il, i n! i l ~ n scop,e 1md int{!l'V1;1I and exi!ilt, on SS welds repre!>ent1;11ive "Mth ei,:-~ nt fo r CGR and FT in fl:;iw til$:SUmption::s for CGR tt1nd FT i n iffl;ldi1;11*ed doa\ IASCC, and mlcrostr\icture flaw e ....a1uatlon H above 2<loa M materl.Jb, MH Aoolireble to most PWR.s. MH e~aluatlon. 4 flaw eYaluatlon H comoonents Moderete cost fo r Purpose of wor1C. would t>e W.oold grea1J)' Increase contamlnaled, bu1 F,actu re toughness data in real Valda'te to provide teal-wOl'kl oonfi(Jence i n large se1 01 not irradiated.
Thermally a ged un irracli.al ed Fracture toughness and conditions ID oompare to accelerated aocele,raiec\ aging Ya1Jda1ion of a c celerated Most ~picable lo a subs.et of f'Jo ISi method avai lable to accelerated a ging data with p rimarystsem CASS micrwtrucl\lre aciria Gata MH da1a H I l!QirKI i n lab 1e~tifltl M PWR, H meawre bii of FT .2S l e~timi of unirradial ed material:il M component.
May be possibl e, but difficult to repli~te long* High C0$1 for M odet.tte fluence (1*2 dpa) Fractur e toughness and Frncture toughness dat.t near Nrnil Confirm reg\llatoty term aging and lrr&dlatlori Most ac>l)licable to a subset of N-o ~ I method avai lable to W.ovld Incre ase contlOenoe in lfradleited ML loMitio n MH M PWRo H moasure 10:1;s or FT 3.5 rtiau1ato~ .......,,1;,,,,n H eomo nGf'lts CASS mierostruetu re tel'.Lirina fur'lhtlr evaluatiO!'I Determine whether sec ml1lgalioo
"'""" Purpose of this work Is to Modere te cost fo r eontamlnaled, bul methods ar& eff&Ctive a t p r&venting Valda'le NDE and Pu,pose Df WOl'k would t>G agsM& insptiCtion and not irradiated, M e1~11ic oomponenls with NDE and de!>tructiYe $CC; l;!ffecthren e!il$ of NOE a t mitigalion method to prqvid<;! 1eal--world mitigation method lnc::r~~ oonfidence i n NOE primary$tJ;1em known flaws exa.rrlnatlon detection anc:t slzlno MH el'fectiveness MH Yatida1ion of lab tes11nA H Applicable to all plants ML effeetiveness 3.75 and m l119atkln methods M eomponents Moderate cost fo r contarnina1ed, b u1 Purpose of wor1C. woold t>e Fotlgtie cal.co1al)ons Inform no1lrra<l~ted.
M etallic component.s with NDE al'ld desttuctiYtl Determi ne whether fatigu e flaws are Vaida'te fatigue lilt! to provide 183'-WOl'kl sampling i nspeetf<)ns of inc,ease confidence i n fatigue p1imarystsem limitinn fal l ue life examin ation resen t in hinh usane localions MH methodolon111s ML Yalida1ion of lab tes1if'll'.l H Ann licable to an n!ants ML limliinn la tinue locati,ons 3.2. l ife c alculai i ons M comnnnents
Baslc:lnfo Technlc..al Crlte,ta Pro]ect Specific lmportsnce of Hlarvested C-o &t I Complox.ily Availa'b llity of Purpos* I THtil'lg Cr-lticalnu.s of Technic al Rog ulatoiy Considerations Timolinossof Nee-d 0escrlptlon Technlcal Knowledge Gained Materials over L;i,bo,atol'")' Ap pllcablllt:y t o US Operat ing Fleet Score Average BHls for Priority materials for Planned Gap Addressed Related t o Inspections arad AMPs results A ina hal"Ytistina ELECTRICA L Sc ore Comment Score Comment Score Comment Score Commerat Score Comment Low and m edium voltage
- cable, Cables pcOlected with fire retardant coating 1 E MOVs from harsh and mild ooW oome nts 1 E Air oe,erated \lalves: 4160 1 E txeakers 1 E Moldod case br.eakers 480V, 250V DC, 125 VOC, 1 E Rela~ from mild environme nt GE - H FA.
Agastal tlmlng relays, any from Weslinghollse. Potier B rumfield. Stuthers Dunn etc.,
Ba1terie1-
~ " ' e u a t;on*
rch interest enclosure s OlstribuUoo: swltch9ear, MCCs, LCs I Contt,ol:
Horseshoe, SSCP, ASP, etc.
Basic Info Technical Criteria Proiect $peciric Importance of Harvested Cost f Complexity Avallablllty of Purpose / Testing Criticalness of Technical Gap Regulatory Considerations Timeliness of Need Description Technical Knowledge Gained Materials over Laboratory Appllcablllty to us Operating fleet Score Average Basis for Priority materials for Planned Addressed Related to Inspections and AMPs resuhs Aaina harvestina CONCRETE Score Comment Score Comment Score Comment Score Comment Score Comment Structures exposed Degradatlon of concrete Physical and mechanical degradation H Gonfirm regulatory H Harvesting Is of high M Most P'WRs H New aging mechanism 4.S Very limited data, new aging M Moderate TBO to high radiation due to irradiation, data under service environment. position. Data available importance because no added fOI' further evaluation medlanism added in SLR* cost for attenuation of radiation Leve! of irradaiation (neutron, from 197as are not data available from in SLR-GALL and SLR- GALL, SLR-SRP. No inspection moderate through concrete. gamma, temperature) through the representative of light service irradiated SRP. No inspeciion method method and OE not available level of concrete and depth of irradiation water reactor (LWR) concrete, inaccessible and data available. because location inaccessable, irradiation on damage. Aggregate expansion, envirooments. Recent for inspection, lim~ed Safety sig~ftcance for RPV concrete.
cracking of concrete, differential limited number of data lab test data, small support structures are critical response of components of conaete, available from NRAJ are scale lab test specimen.
i.e. aggregate, mortar. and rebar/steel representative of LWR embeds and degradalion under environment . Validate lhermo*hydro*radio-med\anical accelerated aging data.
environment due to ra<Jaition, Currently no data Conduct NOE,. available from service irradatad concrete. Real world vahdahon of test data and benchmarking of degradatlOn model$
Conduct NOES.
PosMensionad Degradation of l)()St* ln*situ inlemal degradation, MH Investigate and verify MH Real world validation of MH About 37% US NPPs H Concrete internal condition 4.25 Improve confidence oo L Unlrradiated TSO structures tensioning (PT) system. delamination, adjustment of prestress knowledge related to lab testing, bench containment is post-lensioned. is not part of ISi. Limited numerical modelling, potential force and interaction withinsilu degradallon modes under marking of numencal Also there are a few post* condition monitoring fOf faflure modes, degradations, degradation. sustained multi ax.ial modelling, potential teosioned/prestressed SFP. tendon. Oetensioning and and NOEs. Collect c,itical prestessing force without failure modes, retensioning of tendons of infonnation from failed post*
radial rebar, internal applicable NOES. aged containment tensioned containmnet.
degradatlOO, d89radatioo Critical informatioo from Effective NOE for PT of prestessing system failed post*tensioned containment stn.1cture not including anchorage, NOE containrnnel. available.
methods.
Degradation of ooncrete Ongoing research is providing MH To study in*sib.J effects of M Tl\e knowledge gained H One ptanr severety affected by M Monitoring for manifestation 3.7S Inform adjsutements to aging L Unirradiated An international fromAlkali-Silica-Reaction undersanding of the concrete materia ASR concrete degradation from the current ASR in Iha us. Because ASR is of ASR is part of aging management programs. cooperative (ASR) damage mechanisms and the and comparison with research Is primarily a slow evoMng chemical management programs for Enhanced understanding of the research program characterization or that damage as understanding developed derived fromcontrolled mechanism of the conetete itself concrete structures. For possibillity of combined is being initiated well as of hs implications to structural from laboratory testing. laboratory lasting and all plants have safety- structures with ASR more degradation effects in the field. under the pertormance. The knowledge gained To investigate possibility involving controlled related concrete structures, complex aging Assess homgen~ty of damage auspices fo the is primarily derived from laboratory of combined aging effects aging environments at monitoring for ASR is part of management plans would in real structures. CSNL The testing t09ether with visual such as ASR and constant enwonemnts, concrete m~emenl programs monitor the pr09ressioo of programwill test observations of field structures. reinfOfcement corrosion. homogeneous aging for all concrete structures fOf ASR, concrete cracking, concrete samples and single aging long term oeprations. slructural deformations harvested from a mechanism. arid, if needed, fnvorve decommissioned coring and testing of nuclear PoWer samples. Study of in-situ plant in Canada conditioos woold support extensively implementation of more affected by ASR.
effective ~ging The NRG plans to Corrosion of management plans participate In this reinfOfcing steel, program, which is tendon, liner, likely to provide embedmeril timel results.
Subject:
Harvesting Prioritization Location: HQ-TWFN -10A73-Bp Start: Mon 7/9/2018 3:00 PM End: Mon 7/9/2018 3:30 PM Show Time As: Tentative Recurrence: (none)
Meeting Status: Not yet responded Organizer: Hiser, Matthew Required AttendeesKoshy, Thomas; Sircar, Madhumita Resources: HQ-TWFN -10A73- 8p Hi Tom and Mita, I'd like to follow up with you guys this afternoon on progress to prioritizing technical needs for harvesting in the electrical and concrete areas.
Thanks!
Matt
Subject:
Harvesting Prioritization Fo llow-up Location: Huddle room T10D40 Start: Mon 9/10/2018 10:30 AM End: Mon 9/10/2018 11 :00 AM Show Time As: Tentative Recurrence: (none)
Meeting Status: Not yet responded Organizer: Hiser, Matthew Required AttendeesSirca r, Madhumita
Note to requester: The attachment is immediately following .
From: Hiser, Matthew Sent: Fri, 31 Aug 2018 13:32 :44 +0000 To: Kirk, Mark; Gordon, Matthew;Tregoning, Robert Cc: Pu rtscher, Patrick;Au drain, Margaret
Subject:
Harvesting prioritization for RPV Attachments: Harvesting Needs Priorit iz ation 8-31-18.xlsx Hi Mark, Matt, and Rob, We would like to request your input as the RPV technical experts on the prioritization of harvesting opportunities for RPV materials . I have attached a template of the prioritization of harvesting needs in the non-RPV metals area. Can you follow that template (check the scoring guidance on the first sheet) to provide input for the RPV technical area?
Ideally, it would be good if we could receive your input in the next two weeks by September 14.
We're hoping to pull all of the input from the different areas into a broader harvesting draft deliverable to share with NRR for feedback by October.
Please me know if you have any questions.
Thanks!
Matt Matthew Hiser Materials Engineer US Nuclear Regulatory Commission I Office of uclear Regulatory Research Division of Engineering I Corrosion and Metallurgy Branch Phone: 301-415-24541 Office: TWFN 10D62 Matthew.Hiser@nrc.gov
Criteria T itle Description Scoring Guidance H = high risk significance/ little to no available data MH = Medium-high risk significance/
limited data available Crilicalness of Technical Gap Harvesting to address critical gaps should be prioritized over less M = Moderate risk significance I some Addressed essential technical saps data available ML= low to moderate risk signficance / H = High sufficient data available for regulatory MH = Medium-high decisions M = Medium L = Low risk significance I large amount ML= Medium-low of data available L = Low Key considerations are the ease of laboratory replication of aging H = Nearly Impossible to replicate mechanism and unique. field aspects of the aging mechanism. service enviroment I critically important Degradation mechanisms that are harder to replicate with simulated to use harvested materials aging conditions would be of higher priority for harvesting, For MH = Challenging to repl icate service example, simultaneous thermal and irradiation conditions arc enviromenl / important lo use harvested difficult to replicate outs ide of the plant environme nt. Alternatively, materials Importance of Harvested accelerated aging may not be feasible for a mechanism sensitive to M = Possible w ith some limitations to Materials over Laboratory Aging dose rate. T hese two degradat ion mechanisms may be best evaluated replicate service enviroment / moderately using harvested materials. for unique field aspects, legacy materials important to u:.e harve:.ted material:.
(e.g., fabrication methods, comr>0sition) that are no longer available, ML= Not challenging to replicate service but may play an important role in a potential degradat ion enviroment I less important to use mechanism, would have a higher priority than harvesting materials harvested materials that can be oblained from other sources with represen1ative L = Very easy to r eplicate service properties. enviroment I not important to use harvested materials H = All plants There is greater value in developing knowledge to address an issue MH=AII PWRs Applicability to US Operating that may be appl icable to a larger number of plants compared to one M = All BWRs or most PWRs Fleet that may only affect a relatively small number of plants. ML= ~10-15 plants L = <5 plants H = No or very limited inspection methods available / low confidence in AMPs If mature inspection methods exist and are easy to apply to monitor MH = Limited inspection met hods degradation, harvesting may be less valuable. lfinspecl ion methods available / low-to-moderate confidence i n Regulatory Considerations do not exist. harvesting may be essential 10 ensure confidence in the AMPs Related to Inspections and AMPs assessment of age-related degradation in that particular M = Some inspection methods available I component.T he less confidence that NRC staff has in the moderate confidence in AMPs efTectiveness of the relevant AMP, the higher priority for harves1ing. ML= Good i nspection methods available
/ medium-high confidence in AMPs L = Effective, well-accepted inspection methods exist/ high confidence in AMPs H = Highly irradiated (>5 dpa)
Activities with higher costs and comp lexity are less attractive than MH = Lightly irradiated / contaminated s imilar activities wilh lower costs and 1hat are s impler to execute .. M = Minimal contamination or high effort Harvesting cost and complexity For example, harvesting unirradiated concrete or electrical cables is unirradiated less expensive and less complex than harvesting from the RPV ML= Unirradiated, moderate effort internals or 1he RPV. expected L = Unirradiated, low effort expected T he ability of a potential harvesting program to provide timely results to support either a technical or regulatory need is important.
Timeliness of results Having high confidence that results w ill be timely increases the priority.
Availability of m aterials for T he availability of materials to harvest for a particular dala need is harvesting c\e.arly essential and increases the priority.
Basic Info Technlcal Criteria Proiect s-- Ifie Cost I Complexity Av11llablllty of Purposa / TSting Criticalness of Technical lmporta11ce of Harvested Regulatory Considerations Timeliness. of Need De.scripUon Technic al Knowledge Gained Al)l)llcabllhy to US Operating Fleet Score Average Basis for Tec hnic al Priority materials for Plannad Gap Addressed Mal*rial5 over Laboratory Aging R elated to Inspections and AMPS results harvesting RPV Score Comment Score Comment Scor,e Comment Score Comment Score Comment RPV
- Hi!tJ flu~ & high Mea$,Ure fluem;lf;!,
shift "'essel with we!I* toogh~ss, & Ch-emlslry as M.tablished la'lirtadiated a fund.ion Of through- Through thieknMS S&ction to Yalida te r.rnn.arties thickness oosilian fh.JenDI! & attenuation models Provides data s uppOltlng evolutlon Enabkl measur&m&nt Of trom the use or COl'relatlve (Charpy-both the Ch8'PY transffion1 based) to direct measurement RP'\I - Samples from ...ttuaty coNe and master cuNe (fracture tougtineu-based) anvvessei transffion temn,:irature TO annroaches
Basic Info Technlcal C riteria Proiect s-- Ifie Cost I Complexity Av11llablllty of Purposa / TS ting C riticalness of Technical Importance of Harvested Regulatory Considerations Timeliness. of Need De.scripUon Technic al Knowledge Gained Al)l)llcabllhy to US Oper ating Fleet Scor e Average Basis for Tec hnic al Priority m aterials for Plannad Gap Addressed Mal*rial& over Laboratory Aging R elated to Inspe ctions and AMPS results harvesting METAL S Score Comment Score Comment Scor,e Comment Score Comment Score Comment EP RI performing R& D Qn L&boralory repli cation ~ ry NOE for yo<<j swell<<'lg : MRP diffieull to impossibkl to 227 usM J'.)t'i mar ily viSual Signifieanea Of void s welling al likely extent of vOO swelli ng in Fils dai s !JiiP fo,r achieve ftuences with last.ig, w hi di could <letac.t h ig hec flueBCes is u ncertain, Very high cost fo r Void swell ing, m echanicall PWRs du ring e:,,:tended o peration and elflended plant representative ii'radiation App licab le to hi9h-fluenoe void swelling once fairly and i nspections may detect h ighly i rradiated 1-fil'lh flu8ne& reactor internals roM rtKls. IASCC imaet. on eraeleiM M oooration MH eondilions MH eotnl'M'lc'IGn\S n most PINRS MH I9tlnifieant 3.75 onset Of si J'litiean t de aradatiOttl VH inttimal:!i TBD Moderete CO$! fo r P'u1pose of wort. would l>e W ould gr eatly increase contaminattld, b ut Fractu re tough ness data in real Vaida1e to i:wovide r eal-world c.onfldence i n large set of nol irradiated, Therm~ ly :aged unirradia tl;!d CASS Fractur l;! toughnl;!$$ :and mlcrosttucrure cond ~ IQ oompar1;1 to aocelera1,ed aoin o d a ta MH a ocele,rated agrlg d ata H Yalid1;11ion of :acCli!le~ted I aoloo i n lab tes.tJno May be p ossible. but M
MO$! :aippicflble to a $Ub$.el of PWRs H N,o 1$1 meth od :av,3i lable to measure bss of FT .... a cCli!lerated aging daaa with te stiM of un lrrad!ated materlal:s M primary $1.,e m comoonents difficult to replic;a1e long- t*Hgh CO$! for Modet"ate ftuenee (1*2 dp a) Fractur e toughness and Fra cture tougl1r.ess data near Nmit Conftrm regu la!CM'y term aging and lrradtation Most a.p~bte to a subset of No ISi meu,oo availa b le 10 W.oold lnctease confid ence ., ltradlated CASS microstruclure re~irina further evaluation ML 06it io n MH affect, M PWR, H measure b ss of FT 3.5 r eQu1ator;, nncinnn H comoonoots Moderate cost for Deter'mi ne whe~her sec miUgation Pu rpose of this woitt is to contaminaltld, b ul methods are effective al p re-venting Vaida1e NDE and P'u!pOse of wort would be a:ssess inspection an d nol irradiated, Metallic comJ):)nen1s with NDE Sfld destructive sec; effectiveness of NOE at nitigation melhod to provide ,eaJ.wodd mitigation method Increase confidence i n NDE primar;,stsem known flaws examin ation d~ectl on and slzlno MH e ffeciivenes.s MH Yalidatlon of lab tes11nQ H Applicab le to ah p lants ML effectiveness 3.75 and m ltJQatl<m methods M components Moderate cost for contamin.i1ed, bu1 Purpose of ~ would t>e F;:itlgve calOJla1Ions Inform not lmlldklted, Metallic oomponenl s with NDE end destructiYe Determi ne whether fatigue flaws are Veida1e fatigue ife to i:wovide r eal-world sampling i n spections of Increase oonfidence i n fatigue primarystsem limitino far ioue life examin ation resen1 in hioh usaoe localions MH methcxtolooies ML Yalida1ion of lab testino H Aoolicab le to all olants ML limi1ino faticJue locali<lns 3.2S l ife c alc:tAarions M comoonoots
Baslc:lnfo Technlc..al Crlte,ta Pro]ect Specific lmportsnce of Hlarvested C-o &t I Complox.ily Availa'b llity of Purpos* I THtil'lg Cr-lticalnu.s of Technic al Rog ulatoiy Considerations Timolinossof Nee-d 0escrlptlon Technlcal Knowledge Gained Materials over L;i,bo,atol'")' Ap pllcablllt:y t o US Operat ing Fleet Score Average BHls for Priority materials for Planned Gap Addressed Related t o Inspections arad AMPs results A ina hal"Ytistina ELECTRICA L Sc ore Comment Score Comment Score Comment Score Commerat Score Comment Low and m edium voltage
- cable, Cables pcOlected with fire retardant coating 1 E MOVs from harsh and mild ooW oome nts 1 E Air oe,erated \lalves: 4160 1 E txeakers 1 E Moldod case br.eakers 480V, 250V DC, 125 VOC, 1 E Rela~ from mild environme nt GE - H FA.
Agastal tlmlng relays, any from Weslinghollse. Potier B rumfield. Stuthers Dunn etc.,
Ba1terie1-
~ " ' e u a t;on*
rch interest enclosure s OlstribuUoo: swltch9ear, MCCs, LCs I Contt,ol:
Horseshoe, SSCP, ASP, etc.
Baslc:lnfo Technlc..al Crlte,ta Pro]ect Specific lmportsnce of Hlarvested C-o &t I Complox.ily Availa'b llity of Purpos* I THtil'lg Cr-lticalnu.s of Technic al Rog ulatoiy Considerations Timolinossof Nee-d 0escrlptlon Technlcal Knowledge Gained Materials over L;i,bo,atol'")' Ap pllcablllt:y t o US Operating Fleet Score Average BHls for Priority materials for Planned Gap Addressed Related t o Inspections arad AMPs results A ina hal"Ytistina CONCRET E Sc ore Comment Score Comment Score Comment Score Commerat Score Comment StruClures e:icposed to high radialio n Posl-tensi'ioned s1J1Jctures Corrosion or reinPOl'Cing steeil.
t~ don. 1.-ier. embCJdment Spenl ruel pool and transfet canal-boric add arrad:: on Concrete in f>'INRs Alkali Ag!)l'egate Reaction Large slructural sections for tesling
Subject:
Harvesting Prioritization Status Location: HQ-TWFN - 1OA73- Bp Start: Tue 9/4/2018 9:00 AM End: Tue 9/4/2018 9:30 AM Show Time As: Tentative Recurrence: (none)
Meeting Status: Not yet responded Organizer: Hiser, Matthew Required AttendeesMiller, Kenneth A Resources: HQ-TWFN - 10A73- 8p
From: Hiser, Matthew Sent: Thu, 18 Feb 2016 18:57:43 +0000 To: Obodoako, Aloysius;Hull, Amy;Tregoning, Robert
Subject:
Harvesting Project Transition Summary from meeting this morning:
Rob and Matt briefed Aloysius on background of harvesting project, as well as contract information and next steps:
- COR transfer - once Aloysius has COR training
- New working group rep for EVIB (work with BC Jack McHale)
- Call with PNNL on latest status and follow-up with working group meeting Thanks!
Matt Matthew Hiser Materials Engineer US Nuclear Regulatory Comm ission I Office of uclear Regulatory Research Division of Engineering I Con-osion and Metallurgy Branch Phone: 301-415-24541 Office: TWFN 10D62 Matthew.Hiser@nrc.gov
Subject:
Harvesting Status Location: 10th floor huddle rm Start: Thu 8/2/2018 9:00 AM End: Thu 8/2/2018 10:00 AM Show Time As: Tentative Recurrence: (none)
Meeting Status: Not yet responded Organizer: Hiser, Matthew Required AttendeesAudrain, Margaret; Purtscher, Patrick Sorry- I ended up in a briefing with BC and division managers that ran long. Can you guys do Thursday morning?
Topics:
- PNNL Report
- Meg's PNNL Visit/ Boneyard
- Matt's upcoming PNNL Visit
- Harvesting "supply" spreadsheets
- Harvesting needs prioritization
Subject:
Harvesting Update Location: HQ-TWFN -10A73-8p Start: Thu 8/30/2018 9:00 AM End: Thu 8/30/2018 10:00 AM Show Time As: Tentative Recurrence: (none)
Meeting Status: Not yet responded Organizer: Hiser, Matthew Required AttendeesTregoning, Robert; Audrain, Margaret; Purtscher, Patrick Resources: HQ-TWFN -10A73- 8p Align on status of:
- PNNL report
- Harvesting needs prioritization
- Inventory: boneyard and decommissioning plants
Subject:
Harvesting Update Note to requester: The attachments Location: HQ-OWFN-09B02-12p are immediately following.
Start: Mon 9/19/2016 9:00 AM End: Mon 9/19/2016 10:30 AM Show Time As: Tentative Recurrence: (none)
Meeting Status: Not yet responded Organizer: Hiser, Matthew Required AttendeesCollins, Jay; Cumblidge, Stephen; Tregoning, Robert; Frankl, Istvan; Purtscher, Patrick; Litkett, Bernard; Poehler, Jeffrey; Oberson, Greg; Hardies, Robert; Karwoski, Kenneth Optional Attendees:Rudland, David Resour(es: HQ-OWFN-09B02 -12p Placeholder for meeting to discuss ex-plant harvesting path forward.
Topics:
- Draft PNNL report on harvesting prioritization
- Public workshop in March 2017
- Information gathering from d ecommissioning plants
- 11 , \ : ,1 11 ,
- 11 *l ltl l £ ' 11
', , 1! ' Ir I I ! 1L*** I J 1 111 , I I I II f **
Ex-Plant Materials Harvesting Workshop Purpose and Objective:
- For NRC staff and interested stakeholders to have greater awareness and knowledge of the benefits and challenges associated with ex-plant harvesting.
- Facilitate contacts and communication to enable specific cooperative ex-plant harvesting programs to be initiated, leveraging limited NRC resources to produce highly representative technical data of materials degradation for extended plant operation.
Approach:
- NRC staff host a 2-day workshop with interested stakeholders, including domestic and international utilities and research organizations, to discuss benefits and challenges associated with ex-plant harvesting.
- Format will include sessions with time for presentations and open discussion of different aspects of ex-plant materials harvesting.
- Views and insights from domestic and international regulators, researchers, ind ustry, and decommissioning companies' experience will be encouraged.
Intended Outcome:
- NRC staff and stakeholders are better informed of the benefits and challenges associated with ex-plant harvesting.
- Contacts are made with domestic and international utilities and researchers to allow for further discussion of specific cooperative research projects that may address technical data gaps associated with materials degradation that can be best addressed through ex-plant harvesting.
Potential Dates:
- March 9-10, 2017 - Thursday/Friday before RIC
- March 16-17, 2017 - Thursday/Friday of RIC week
- March 20-21, 2017 - Monday/Tuesday after RIC Discussion Topics:
- Harvesting decision-making / prioritization o Technical data needs best addressed by harvesting o Technical information needed in advance of harvesting
- Sources of materials:
o Decommissioning reactors o Operating reactors - replaced or failed components o Previous harvesting programs - "boneyards" o Tracking available materials
- Harvesting process o Lessons learned from harvesting experience o Perspective of utility-owner and decommissioning contractor on harvesting o Communication and coordination between decommissioning and researchers
PNNL Report Summary
- "Criteria and Planning Guidance for Ex-Plant Harvesting to Support Subsequent License Renewal"
- Intended to be applicable to primary system metals, cables, and concrete
- Discusses criteria for prioritizing harvesting projects
- When is harvesting most beneficial to justify cost?
Examples:
- Ease of laboratory repl ication of material and environment combination
- Applicability of harvested material for addressing critical gaps
PNNL Report Summary
- Assesses harvesting priority for example materials degradation issues:
- Cable aging
- CASS
- High fluence internals: baffle bolts, plate, welds
- Proposes general harvesting plan based on lessons learned from past harvesting experience
- Information needed in advance (environment, material info, etc.}
- Working with decommissioning process
Note to requester: Attachment is immediately following.
From: Hiser, Matthew Sent: Fri, 14 Sep 2018 18:36 :02 +0000 To: Purtscher, Patrick;Audra in, Margaret Cc: Tregoning, Robert
Subject:
Harvesting Update Attachments: Harvesting Needs Prioritization compiled 9-14-18.xlsx Hi Meg and Pat, I just wanted to share with you guys the progress on the harvesting prioritization spreadsheet (attached). I've gotten good input for concrete and have a coup le versions (one from Rob and one from Mark Kirk) fo r RPV. I'm still waiting on electrical input from Kenn Miller. I also added higher fluence 55 welds on the " Metals" tab of the spreadsheet.
Feel free to take a look for consistency checks. Hopefully, we' ll have electrical/RPV na iled down in the next couple weeks.
Also, Meg, were you going to compile/harmonize the inputs from ANL, PNNL, and Battelle?
Thanks!
Matt
Criteria T itle Description Scoring Guidance H = high risk significance/ little to no available data MH = Medium-high risk significance/
limited data available Crilicalness of Technical Gap Harvesting to address critical gaps should be prioritized over less M = Moderate risk significance I some Addressed essential technical saps data available ML= low to moderate risk signficance / H = High sufficient data available for regulatory MH = Medium-high decisions M = Medium L = Low risk significance I large amount ML= Medium-low of data available L = Low Key considerations are the ease of laboratory replication of aging H = Nearly Impossible to replicate mechanism and unique. field aspects of the aging mechanism. service enviroment I critically important Degradation mechanisms that are harder to replicate with simulated to use harvested materials aging conditions would be of higher priority for harvesting, For MH = Challenging to repl icate service example, simultaneous thermal and irradiation conditions arc enviromenl / important lo use harvested difficult to replicate outs ide of the plant environme nt. Alternatively, materials Importance of Harvested accelerated aging may not be feasible for a mechanism sensitive to M = Possible w ith some limitations to Materials over Laboratory Aging dose rate. T hese two degradat ion mechanisms may be best evaluated replicate service enviroment / moderately using harvested materials. for unique field aspects, legacy materials important to u:.e harve:.ted material:.
(e.g., fabrication methods, comr>0sition) that are no longer available, ML= Not challenging to replicate service but may play an important role in a potential degradat ion enviroment I less important to use mechanism, would have a higher priority than harvesting materials harvested materials that can be oblained from other sources with represen1ative L = Very easy to r eplicate service properties. enviroment I not important to use harvested materials H = All plants There is greater value in developing knowledge to address an issue MH=AII PWRs Applicability to US Operating that may be appl icable to a larger number of plants compared to one M = All BWRs or most PWRs Fleet that may only affect a relatively small number of plants. ML= ~10-15 plants L = <5 plants H = No or very limited inspection methods available / low confidence in AMPs If mature inspection methods exist and are easy to apply to monitor MH = Limited inspection met hods degradation, harvesting may be less valuable. lfinspecl ion methods available / low-to-moderate confidence i n Regulatory Considerations do not exist. harvesting may be essential 10 ensure confidence in the AMPs Related to Inspections and AMPs assessment of age-related degradation in that particular M = Some inspection methods available I component.T he less confidence that NRC staff has in the moderate confidence in AMPs efTectiveness of the relevant AMP, the higher priority for harves1ing. ML= Good i nspection methods available
/ medium-high confidence in AMPs L = Effective, well-accepted inspection methods exist/ high confidence in AMPs H = Highly irradiated (>5 dpa)
Activities with higher costs and comp lexity are less attractive than MH = Lightly irradiated / contaminated s imilar activities wilh lower costs and 1hat are s impler to execute .. M = Minimal contamination or high effort Harvesting cost and complexity For example, harvesting unirradiated concrete or electrical cables is unirradiated less expensive and less complex than harvesting from the RPV ML= Unirradiated, moderate effort internals or 1he RPV. expected L = Unirradiated, low effort expected T he ability of a potential harvesting program to provide timely results to support either a technical or regulatory need is important.
Timeliness of results Having high confidence that results w ill be timely increases the priority.
Availability of m aterials for T he availability of materials to harvest for a particular dala need is harvesting c\e.arly essential and increases the priority.
Basic Info Technlcal C riteria Proiect s-- Ifie Cost I Complexity Av11llablllty of Purposa / TSting C riticalness of Technical lmporta11ce of Harvested Regulatory Considerations Timeliness. of Need De.scrlpUon Technic al K nowledge Gained Al)l)llcabllhy to US Oper ating Fleet Scor e Average Basi s for Tec hnic al Priority m aterials for Plannad Gap Addressed Mal*rial& over Laboratory Aging R elated to Inspections and AMPS results harvesting RPV Score Comment Score Comment Scor,e Comment Score Comment Score Comment The results would be limefy T tie aitteou:atton models if they are have the le-ast amoui,t or d9...,91oped This work has beE!fl supporting information Material is irradiated before 2024 or done before but the adC,itiOna!work Shol.ldl'ocuson Ther~ ar e not many studies that irTadiate 6 to 9 ind"ies Vv'hlle the Information stioold be generieally appri(;al)le, ii. for compared t o other 9$pe,cls related to RPV embrittleme nt. HOWIJ'ler, The 8'tlenut1tion stuc,y ls s llgtitty rnc,re important to me,, jusl which will .iffect all a,spectsofspecimen pr eparation anc, so tocoincicle additional Othe r than Zion higer fluE!floeS to of ste.el so, from that some reason, the results .are studies to date have because there are fewer such testing. Fisther. rlformaoon materials. I'm RPV - Hl!l'ftuence&hlgh Meast.1re fluenoe, verify that the standpoint, getting only appllc&ble to Mhlgh fluenceM vahd aled the st!Jdles that have been oone. taking !Speclmeos at bel.ng collected n04 owareof Shift Y'eSS91wi1h well- toughn.ess. & CMmiStry as attenuation trends specimens from an RPV materials/locatiOns. this might conservaUvism 04 ex isting Being able to confirm expected several th1ough- from industl)I otha-1 RPVs that etSU!blished unirrediated a fund i an of through- Through thickness section to valida te expected are are importanl for studying result in less relevance I() lower efflenuatiom models ,used Fl trends al higher fluence level s ihdness locations survielanoe are available ior
- ~- nies thickne,!j,JJ nositk;tn fluenoe & ai ter-.iation mQodel, M maintaiined. MH a1ter-.iatiQn M flueooe Ian~ r.-.cludino B V\/R!jl\. Ml I ~ulatorv ermlic.ition$. M WQUld there*fore be uSf;!ful. MH wll increase cosa. raorllff)!jl. harve!jltinn.
oeIIeve Inilt I 1neQnryrea ~ ant.tge 1n Iwe~vea$ ':l'-"-'Ya I I nt;! re,u t, enougll data h<'t!S my mind for ha'Ying vessel confidence ln RPV would be llm efy b9en d ev&loped material IOf 1his study iS embrituema nt 1han v irtually if they are from both lest and that there are no (1.-lestions any other degradation 1hal de...,eloped Othe r than Zion RPV - Samples from virtual)'
Enab&e measure men t of b61t'i 1M Ctiatpy lU1MtliOiio cuNe a nd maste r ~urve Provicl~ date s upporting evolution from the use of CO(relaitlve (Cl'larpy-b;}:§;ed) l0 dii Elcf. fnetiSUf6mEli'll
{f1ac1ure toughness-based)
$UNeillanoe specimens such
!Ml 1M link is w l!II-established. I 'Nil about the representativeness of a,,vy IM d-f'at!0r ifradialiOn compared to the actual Any infO(ma1ion developed we !lltudy. The only r eal Issue Is making su,e ttiat 6v/ uo<UirMandift0 f9i'MiM ei;:,s:ilicable a t the hi9h es1 W hile ir, at.vay!ll usetut to have m<:H'e c,ata, especially on RPV l'ni!IWI!, I fMI 1Mt 6Uf n\6del5 alr:-eacty nave a good 1echnical wti!ch .....111 affect alt aspecb§:6':§;p6tiMeii pr eparetion and Materi1;1I is irradiated before 2024 or so to coincide additional lll.!lterials, I'm n01 aware of 6thui RPVs- ttial are available ior a nv vessel transition temnP.rature TO aonroaches M sav lh.at lhere Is. ML vessel ltracflallon. MH ShOuld be Mnerlcally awllca,ble Ml e)(Mcted fl uences. M ML 0
basis. MH 1estlnn. Information harvesti~.
Pt ojectSpe,cif"te Cost I Comple11.ity Avall.;1b,llltyof Critit.SIIMH Of Te.cll.nieal lmportanre Of Hlll'YHle-d Ne.c:!Oucriptio,n Tlmellnu, of Nl$Ultl ffi-ilt1ri&l1for G;11p Addru**d M;ateri;i,1$ -er Labor.ltory Aging tlar'lle6tln RPV Score Comment Score ComMent RPV
- Higll tk.oMee & l'ligll
$lwt~withw,ell-l.'lo.1$1.Jllt llucnco, tough non,
.$, Chemistry Ma fl.Wlcdon of Through thic~nOS$ N<::lion lo "8!1date ftU8fl09 & atteiwa~on ... SOOt"eiSl.'IHwll.lWI ltlebet@'le MH AQa1n c/\Mge to H wtside MH #NIA embottlement is not A.t!Mu&UOI\ rormula Iha& been l.f!led I OI v@BfS. h'Hlide the l)e(t(jl'I&
ii'$ a008Pted and beli\oed oo/'MlfVatwe. aneltlino if'l$peclodfor Gro~ im~ ;u$00illtod witli fV0$1itd d;iil;,, OUl$ido of betOlne.
Very *m1!J&d H *platlt dal8 exitts worl:l\lftde cpemaps 6 plants) to Proviffl ~t;ii wPPQl"ijng ov~tiQn Eriabllt mN51Jr11meflt crf both oompa,,v to survelieoi:;e ~ T ~ data 1hat do exist oompare fromtlM!use otco"efat.Ma(Olarpy-RPV
- samples .-on, virlually *~Cl'latpy 1rat1sltion cisve embri1tleM8fltl91'10l reae;on.at,1y wl!I, &Jor hawe ~plainabte retiOl'la far t,,,i,od)1oo;l~~;,,,i;1J*~t MH MN/A MH i1f11Y vaSMI end lniJIS\er CUflle IJ'ill'l&ifon lnspeQedfor dfsai,gf9Wll8nt Weha..-e l t'lleptiyi;icalrea&0ntoexpea (fracture tou(,tmess*based) letll)E!tat11eT0 dil'Sefencl!S belweetl ~-peant (ha~,J,!Ued) !Dta atlCI s,u~liel'lce approeches data ..* bllt (BB ooted)we ha'Ve not checi,;ed In that many cases.
Basic Info Technl cal C riteria Proiect s-- Ifie Cost I Complexity Av11llablllty of Purposa / TSting C ritical ness of Technical Importance of Harvested Regul atory Considerations Timel iness. of Need De.scripUon Technic al Knowl edge Gai ned Al)l)llcabllhy to US Oper ating Fleet Scor e Average Basi s for Tec hnic al Priority m aterials for Plannad Gap Addresse d Mal*rial& over Labora tory Aging R elated to Inspe ctions and AMPS results harve sting METALS Score Comment Score Comment Scor,e Com men t Score Comment Score Comment EPRI performing R&D Qn L&boralory replication ~ry NOE for yo<<j swell<<'lg: MRP diffieull to impossibkl to 227 usM J'.)t'imar ily viSual Signifieanea Of void swelling al likely extent of vOO swelli ng in Fils d ais !JiiP fo,r achieve ftuences with l ast.ig, w hidi could <letac.t h ig hec flueBCes is u ncertain, Very high cost fo r Void swell ing, m echanicall PWRs during e:,,:tended operation and elflended p lant representative ii'radiation Applicable to hi9h-fluenoe void swelling once fairly and i nspections may detect h ighly irradiated 1-fil'lh flu8ne& reactor internals roMrtKls. IASCC imaet. on eraeleiM M oooration MH eondilions MH eotnl'M'lc'IGn\S n most PINRS MH I9tlnifieant 3.75 onset Of si J'litieant dearadatiOttl VH inttimal:!i TBD MRP- 227 requires vis.tli:11 Flu~mce k!Yel:s may be inspections, whietl can be achieved by te st reactor fo llowed by volumetric lo lrrad1atlon (e.g . further sue flaws. However~ lack o f Inspections are teQolred, bu1 CGR and FT prq>erties for irradiated irradiation or Zo 1ita weldg). <lat.a above 2 dpa c reates laek ot data above 2 dpa SS weld and HAZ materie ls to inform Little lo no data but would be m ost uncertainty on assumptions cn1ates u ncertainty on High cost for Hiftie, fluenoe ss ~ Ids (>2 Fracture toughnt;!S!il, i n! i l ~ n scop,e 1md int{!l'V1;1I and exi!ilt, on SS welds repre!>ent1;11ive "Mth ei,:-~ nt fo r CGR and FT in fl:;iw til$:SUmption::s for CGR tt1nd FT i n iffl;ldi1;11*ed doa\ IASCC, and mlcrostr\icture flaw e ....a1uatlon H above 2<loa M materl.Jb, MH Aoolireble to most PWR.s. MH e~aluatlon. 4 flaw eYaluatlon H comoonents Moderete cost fo r Purpose of wor1C. would t>e W.oold grea1J)' Increase contamlnaled, bu1 F,actu re toughness data in real Valda'te to provide teal-wOl'kl oonfi(Jence i n large se1 01 not irradiated.
Thermally a ged un irracli.al ed Fracture toughness and conditions ID oompare to accelerated aocele,raiec\ aging Ya1Jda1ion of a c celerated Most ~picable lo a subs.et of f'Jo ISi method avai lable to accelerated a ging data with p rimarystsem CASS micrwtrucl\lre aciria Gata MH da1a H I l!QirKI i n lab 1e~tifltl M PWR, H meawre bii of FT .2S l e~timi of unirradial ed material:il M component.
May be possibl e, but difficult to repli~te long* High C0$1 for M odet.tte fluence (1*2 dpa) Fractur e toughness and Frncture toughness dat.t near Nrnil Confirm reg\llatoty term aging and lrr&dlatlori Most ac>l)licable to a subset of N-o ~ I method avai lable to W.ovld Incre ase contlOenoe in lfradleited ML loMitio n MH M PWRo H moasure 10:1;s or FT 3.5 rtiau1ato~ .......,,1;,,,,n H eomo nGf'lts CASS mierostruetu re tel'.Lirina fur'lhtlr evaluatiO!'I Determine whether sec ml1lgalioo
"'""" Purpose of this work Is to Modere te cost fo r eontamlnaled, bul methods ar& eff&Ctive a t p r&venting Valda'le NDE and Pu,pose Df WOl'k would t>G agsM& insptiCtion and not irradiated, M e1~11ic oomponenls with NDE and de!>tructiYe $CC; l;!ffecthren e!il$ of NOE a t mitigalion method to prqvid<;! 1eal--world mitigation method lnc::r~~ oonfidence i n NOE primary$tJ;1em known flaws exa.rrlnatlon detection anc:t slzlno MH el'fectiveness MH Yatida1ion of lab tes11nA H Applicable to all plants ML effeetiveness 3.75 and m l119atkln methods M eomponents Moderate cost fo r contarnina1ed, b u1 Purpose of wor1C. woold t>e Fotlgtie cal.co1al)ons Inform no1lrra<l~ted.
M etallic component.s with NDE al'ld desttuctiYtl Determi ne whether fatigu e flaws are Vaida'te fatigue lilt! to provide 183'-WOl'kl sampling i nspeetf<)ns of inc,ease confidence i n fatigue p1imarystsem limitinn fal l ue life examin ation resen t in hinh usane localions MH methodolon111s ML Yalida1ion of lab tes1if'll'.l H Ann licable to an n!ants ML limliinn la tinue locati,ons 3.2. l ife c alculai i ons M comnnnents
Baslc:lnfo Technlc..al Crlte,ta Pro]ect Specific lmportsnce of Hlarvested C-o &t I Complox.ily Availa'b llity of Purpos* I THtil'lg Cr-lticalnu.s of Technic al Rog ulatoiy Considerations Timolinossof Nee-d 0escrlptlon Technlcal Knowledge Gained Materials over L;i,bo,atol'")' Ap pllcablllt:y t o US Operat ing Fleet Score Average BHls for Priority materials for Planned Gap Addressed Related t o Inspections arad AMPs results A ina hal"Ytistina ELECTRICA L Sc ore Comment Score Comment Score Comment Score Commerat Score Comment Low and m edium voltage
- cable, Cables pcOlected with fire retardant coating 1 E MOVs from harsh and mild ooW oome nts 1 E Air oe,erated \lalves: 4160 1 E txeakers 1 E Moldod case br.eakers 480V, 250V DC, 125 VOC, 1 E Rela~ from mild environme nt GE - H FA.
Agastal tlmlng relays, any from Weslinghollse. Potier B rumfield. Stuthers Dunn etc.,
Ba1terie1-
~ " ' e u a t;on*
rch interest enclosure s OlstribuUoo: swltch9ear, MCCs, LCs I Contt,ol:
Horseshoe, SSCP, ASP, etc.
Basic Info Technical Criteria Proiect $peciric Importance of Harvested Cost f Complexity Avallablllty of Purpose / Testing Criticalness of Technical Gap Regulatory Considerations Timeliness of Need Description Technical Knowledge Gained Materials over Laboratory Appllcablllty to us Operating fleet Score Average Basis for Priority materials for Planned Addressed Related to Inspections and AMPs resuhs Aaina harvestina CONCRETE Score Comment Score Comment Score Comment Score Comment Score Comment Structures exposed Degradatlon of concrete Physical and mechanical degradation H Gonfirm regulatory H Harvesting Is of high M Most P'WRs H New aging mechanism 4.S Very limited data, new aging M Moderate TBO to high radiation due to irradiation, data under service environment. position. Data available importance because no added fOI' further evaluation medlanism added in SLR* cost for attenuation of radiation Leve! of irradaiation (neutron, from 197as are not data available from in SLR-GALL and SLR- GALL, SLR-SRP. No inspection moderate through concrete. gamma, temperature) through the representative of light service irradiated SRP. No inspeciion method method and OE not available level of concrete and depth of irradiation water reactor (LWR) concrete, inaccessible and data available. because location inaccessable, irradiation on damage. Aggregate expansion, envirooments. Recent for inspection, lim~ed Safety sig~ftcance for RPV concrete.
cracking of concrete, differential limited number of data lab test data, small support structures are critical response of components of conaete, available from NRAJ are scale lab test specimen.
i.e. aggregate, mortar. and rebar/steel representative of LWR embeds and degradalion under environment . Validate lhermo*hydro*radio-med\anical accelerated aging data.
environment due to ra<Jaition, Currently no data Conduct NOE,. available from service irradatad concrete. Real world vahdahon of test data and benchmarking of degradatlOn model$
Conduct NOES.
Post-tensioned Degradation of l)()St* ln*situ inlemal degradation, MH Investigate and verify MH Real world validation of MH About 37% US NPPs H Concrete internal condition 4.25 Improve confidence oo L Unlrradiated TSO structures tensioning (PT) system. delamination, adjustment of prestress knowledge related to lab testing, bench containment is post-lensioned. is not part of ISi. Limited numerical modelling, potential force and interaction withinsilu degradallon modes under marking of numencal Also there are a few post* condition monitoring fOf failure modes, degradations, degradation. sustained multi ax.ial modelling, potential teosioned/prestressed SFP. tendon. Oetensioning and and NOEs. Collect c,itical prestessing force without failure modes, retensioning of tendons of infonnation from failed post*
radial rebar, internal applicable NOES. aged containment tensioned containmnet.
degradatlOO, d89radatioo Critical informatioo from Effective NOE for PT of prestessing system failed post*tensioned containment stn.1cture not including anchorage, NOE containmnel. available.
methods.
Degradation of ooncrete Ongoing research is providing MH To study in*sib.J effects of M Tl\e knowledge gained H One ptanr severety affected by M Monitoring for manifestation 3.7S Inform adjsutements to aging L Unirradiated An international from Alkali-Silica-Reaction undersanding of the concrete materia ASR concrete degradation from the current ASR in Iha us. Because ASR is of ASR is part of aging management programs. cooperative (ASR) damage mechanisms and the and comparison with research Is primarily a slow evoMng chemical management programs for Enhanced understanding of the research program characterization or that damage as understanding developed derived fromcontrolled mechanism of the conetete itself concrete structures. For possibillity of combined is being initiated well as of hs implications to stn.1ctural from laboratory testing. laboratory lasting and all plants have safety- structures with ASR more degradation effects in the field. under the pertormance. The knowledge gained To investigate possibility involving controlled related concrete structures, complex aging Assess homgen~ty of damage auspices fo the is primarily derived from laboratory of combined aging effects aging environments at monitoring for ASR is part of management plans would in real structures. CSNL The testing t09ether with visual such as ASR and constant enwonemnts, concrete m~emenl programs monitor the pr09ressioo of program will test observations of field structures. reinfOfcement corrosion. homogeneous aging for all concrete structures fOf ASR, concrete cracking, concrete samples and single aging long term oeprations. slructural deformations harvested from a mechanism. arid, if needed, fnvorve decommissioned coring and testing of nuclear PoWer samples. Study of in-situ plant in Canada conditioos woold support extensively implementation of more affected by ASR.
effective ~ging The NRG plans to Corrosion of management plans participate In this reinfOfcing steel, program, which is tendon, liner, likely to provide embedmenl timel results.
Note to requester: The attachments are immediately following. This email was included within another email string in the 7th interim response, but without its attachments.
From: Tregoning, Robert Sent: Thu, 15 Dec 2016 15:54:02 -0500 To: Bernhoft, Sherry [sbernhoft@epri.com] (sbernhoft@epri.com);Reister, Richard Cc: Hiser, Matthew;Purtscher, Patrick;Dyle, Robin
Subject:
Harvesting Workshop Attachments: Harvesting Workshop Announcement.docx, Workshop Agenda 12-12-16.docx Sherry/Rich:
I wanted to thank you again for the discussion that we had last week on the harvesting workshop agenda. I think it was productive and I appreciate the perspective you both brought.
I've attached an announcement for the workshop that we're planning to use to solicit participants. Also, we've revised the agenda substantially based on the feedback you both provided. I think it captures the issues you had and I personally think that this is a better model to follow for the workshop.
I'd like to ask you both for two things prior to leaving for the holidays.
- 1. Could you provide me with any additional changes to the workshop agenda that you recommend? Just mark-up and send back the attached agenda. I'll consolidate and address any remaining suggestions from you both.
- 2. Could you provide me with a POC for coordinating each of the 5 workshop sessions?
The idea is for the POCs to work together for planning each session. Here are the POCs from the NRC:
- a. Session 1 - Rob Tregoning
- b. Session 2 - Matt Hiser
- c. Session 3 - Pat Purtscher
- d. Session 4 - Matt Hiser
- e. Session 5 - Rob Tregoning We're hoping to get the planning teams in place before Christmas so that we can hit the ground running in early January to line up all the speakers.
Thanks again for your help. If I don't talk to you beforehand, I hope both you and your families have a Happy Holidays and a Prosperous New Year.
Rob Robert Tregoning Technical Advisor for Materials US Nuclear Regulatory Commission Two White Flint North, M/S T-10 A36 11545 Rockville Pike Rockville, MD 20852-2738 ph: 301-415-2324 fax: 301-415-6671
Ex-Plant Materials Harvesting Workshop Location: NRG Headquarteirs in Rockville, MD, USA Dates: March 7-8, 2017 Motivation:
- There are increasing opportunities to harvest the safety-critical components from decommissioning plants, both domestic and international.
- The harvested materials are valuable because they have been exposed to actual in-service plant operating conditions (temperature, irradiation, coolant, etc.), unlike virgin materials tested under simulated conditions in the lab.
- Data from ex-plant materials should help address technical gaps identified for extended operation of nuclear power plants due to highly relevant aging conditions.
Purpose and Objective:
- For NRG staff and interested stakeholders to have greater awareness and knowledge of the benefits I
and challenges associated with ex-plant harvesting.
- Facilitate contacts and communication to enable 0 0 0 0 0 l;I O 0 specific cooperative ex-plant harvesting programs to be initiated.
Workshop Topics: ooooo i ooo
- Harvesting decision-making and prioritization o Technical data needs best addressed by harvesting o Technical information needed in advance of harvesting
- Sources of materials:
o Decommissioning reactors o Operating reactors - replaced components o Previous harvesting programs - "boneyards" o Tracking available materials
- Harvesting process o Lessons learned from harvesting experience o Perspective of utility-owner and decommissioning contractor on harvesting o Communication and coordination between decommissioning and researchers
- International collaborative programs on specific components at specific plants Workshop will consist of solicited presentations followed by discussion periods. If interested in attending or learning more about the workshop, please reach out to the contacts below.
Contacts: Robert Tregoning, Robert.Tregoning@nrc.gov Matthew Hiser, Matthew.Hiser@nrc.gov Patrick Purtscher, Patrick.Purtscher@nrc.gov
Draft Agenda - March 7-8, 2017 Harvesting Workshop Tuesday, March 7, 2017 Introduction
- Overview of workshop purpose and objectives 8:00 - 8:15 o NRG Session 1: Motivation for Harvesting 8:15 - 9:45
- Why our organization is interested in harvesting (short, 5-10 min presentations) o EPRI o DOE o NRC o MAI orJRC o JNRA
- PANEL DISCUSSIOIN with prepared questions BREAK 9:45 - 10:00 Session 2: Technical data needs best addressed by harvesting 10:00 -12:00
- Overview of data needs best addressed by harvesting o NRC/PNNL
- Perspective on harvesting data needs 1:00 - 2:15 o JNRA
- DISCUSSION BREAK 2:15 - 2:30 Session 3: Sources of Materials 2:30 - 5:30
- Available materials from decommissioning plants and past harvesting programs o NRC
- Available materials from operating reactors and past harvesting programs o EPRI
- International sources of materials o IAEA?
- DISCUSSION
Wednesday, March 8, 2017 Session 4: Harvesting Experience: Lessons learned and practical aspects 8:00 - 12:00
- Decommissioning process vs. harvesting: schedule, site-specific, timing for different components o US decommissioning company (Energy Solutions)
- Decommissioning and harvesting plans and experience o International decommissioning company (Germany?)
- Owner perspective on harvesting and decommissioning o US utility (Dominion/Kewaunee, other?)
- DISCUSSION LUNCH 12:00 -1 :00 Session 5: Future Harvesting Program Planning 1:00 -4:00
- Technical information needed for informed harvesting decisions o NRC/PNNL
- DISCUSSION of Next Steps / Actions
- PANEL DISCUSSION with prepared questions
INote to requester: The attachments are immediately following.
From: Hiser, Matthew Sent: Wed, 22 Feb 201713:35:36 +0000 To: Sircar, Madhumita;Koshy, Thomas
Subject:
Harvesting Workshop Attachments: NRC Technical Data Needs for Harvesting.pptx, NRC Perspective on Harvesting Experience and Lessons Learned.pptx, Sources of Materials.pptx Hi Mita and Tom, Just to follow up from our discussions yesterday, I've attached the slides for the 3 presentations in Sessions 2-4 of the workshop. The slides are fairly brief and intended to quickly lay out our ideas and input, but leave plenty of time for discussion.
For data needs and sources of materials, please fill in any additional input you have for electrical or concrete topics. For harvesting experience and lessons learned, please take a look and add any additional insights you think we should include in our presentation.
I've also copied below the expectations we have provided to participants for each session for your reference and awareness:
- Session 2 Technical Data Needs for Harvesting
- Presenters share high-priority data needs that may be best addressed by harvesting
- Where does harvesting hold particu lar value compared to other sources of technical data 20 minute presentations followed by open discussion of technical data needs for harvesting
- Session 3 Sources of Materials
- Information on previously harvested materials and future harvesting opportunities
- Materials located at research and vendor facilities
- Decommissioning plants that may allow for future harvesting
- Short 5-10 minute presentations followed by open discussion
- Starting point for potential database of previously harvested materials and future harvesting opportunities
- Session 4 Harvesting Experience: Lessons Learned and Practical Aspects
- Improving future efforts with lessons learned from past programs
- Pitfalls to avoid and strategies to improve likelihood of success
- Practical perspective from non-researchers on how harvesting interfaces with the decommissioning process
- International decommissioning and harvesting experience 30 minute presentations followed by open discussion Thanks!
Matt Matthew Hiser Materials Engineer US Nuclear Regulatory Commission I Office of Nuclear Regulatory Research Division of Engineering I Corrosion and Metallurgy Branch
Phone: 301 -415-2454 I Office: TWFN 10D62 Matthew.Hiser@nrc.gov
Sources of Materials Metals
- Examples of harvested materials used in NRC research programs:
Boral from Zion SS plate and welds from Zorita
- 30455 ranging from <1 to 50 dpa
- Alloy 600 J-groove weld from Davis-Besse
- Alloy 600 CRD nozzle from North Anna
- Shoreham, Midland
Electrical Concrete Recently Shutdown U.S. Plants Size Years in Shutdown Plant Design Notes (MWt) Operation Date Kewaunee W 2-loop 1772 39 2013 SONGS 2/3 CE 2-loop 3438 31/30 2013 Crysta I River 3 B&W 2609 36 2013 Vermont Yankee BWR-4/Mark-1 1912 42 2015 Fort Calhoun CE 2-loop 1500 43 2016
Planned Shutdown U.S. Plants Size Years in Planned Plant Design {MWt) Notes Operation Shutdown Palisades CE 2565 47 2018 Pilgrim BWR-3/Mark-1 2028 47 2019 Oyster Creek BWR-2/Mark-1 1930 so 2019 Indian Point 2/3 W 4-loop 3216 48/46 2021 Diablo Canyon 1/2 W 4-loop 3411 40 2024-5
Additional Information from Plants
- Point of Contact
- Material information
- Fabrication records, CMTRs
- Operating history
- Tem1perature and fluence for components of interest
- Inspection records
- Components with known flaws
NRC Perspective on Harvesting Experience and Lessons Learned
NRC Harvesting Experience
- RPV materials
- Shoreham, Midland
- Reactor vessel head CROM penetrations
- North Anna, Davis-Besse
- Pressurizer from St. Lucie
- Reactor internals from Zorita
- Joint harvesting and testing project with EPRI and international
- Neutron absorbers from Zion
- Harvesting coordinated with DOE and EPRI; Independent NRC testing
- Concrete from Zorita
- Cables from Zion and Crystal River
Previous Benefits of Harvesting
- Reduce unnecessary conservatism
- Flaw distributions and Master Curve information came from harvested materials to support PTS rule
- Understand in-service flaws
- Mockups for NDE qualification
- Leak rate methodology from studying in-service flaws
Technical Lessons Learned
- Harvesting can provide highly representative aged materials for research May be only practical source of representative aged materiall s, particu larly if irradiation and temperature are important factors
- Achieving high fluence levels with representative irradiation conditions through other means is very challenging May be able to use limited harvested materials to validate larger accelerated aging data set
- Important to gain as much inform1ation as possible in advance before committing to specific harvesting project Ideally a bounding, yet broadly representative, material/environment Understand material information (CMTRs if available) and plant operating conditions
Logistical Lessons Learned
- Harvesting is an expensive, time-consuming effort
- Must balance cost with potential benefits carefully
- High technical relevance of materials is needed to ensure value
- Leveraging resources with other research organizations helps mitigate cost cha I le nges Can introduce challenges for testing when aligning research priorities and interests of multiple organizations May be needed, particularly for expensive testing of irradiated materials
- Transporting irradiated materials, particularly internationally, is cumbersome and time-consuming Avoiding extra transport, espedally between countries, is highly recommended
NRC High-Priority Data Needs for Harvesting
Metals
- Selected areas of interest for harvested materials:
- High f l uence reactor internals
- >50 dpa 304 SS from high core outlet temp plant
- Bounding temperature and high fluence for void swelling
- Thermally aged unirradiated C.ASS
- >30 years at "'320°C; Validate accelerated aging data
- Moderate fluence (1-2 dpa) CASS
- Bolster technica l basis for embrittlement in this fluence range
Metals
- High fluence vessel with relatively high levels of minor alloying elements (Mn, P, etc.)
- Through thickness section
- Measure fluence, toughness, and chemistry as a function of depth
- Val idate fluence calculations
- C.omponents with known flaws Example : weld overlays over known flaws Could be used for N DE evaluations or to assess effectiveness of mitigation techniques
- C.omponents with limiting fatigue life
- Confirm fatigue calculations are accurate by inspecting for flaws
Electrica I
- Cables
- Power cables energized and energized in norma I operation
- Cables from in containment applications
- Electrical components lE MOVs from harsh and mild environments lE Air operated valves 4160 lE breakers lE Molded case breakers 480V, 250V DC, 125 VDC, lE Relays from mild environment GE - HFA, Agastat timing relays, any from Westinghouse, Potter Brumfield, Stuthers Dunn etc.,
- Other Electrical penetrations Batteries
Concrete
- High fluence irradiated concrete?
- ASR?
- Large sections for structural testing?
Subj ect: Harvest ing Workshop Location: HQ-TWFN -1OA73-Bp Note to requester: The attachments are immediately following.
Start: Tue 2/14/2017 2:00 PM End: Tue 2/14/2017 3:00 PM Show Time As: Tentative Recurrence: (none)
Meeting Status: Not yet responded Organizer: Hiser, Matthew Required AttendeesKoshy, Thomas; Sircar, Madhumita; Murdock, Darrell; Jung, Ian; Seber, Dogan; Philip, Jacob; Tregoning, Robert; Purtscher, Patrick Resources: HQ-TWFN -1OA73-Bp
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You may be aware of a workshop on ex-plant materials harvesting that we are planning at NRC HQ for March 7-8. The scope of this workshop includes metals, cables/electrical, and concrete. The purpose of the workshop and expectations for each session are captured in the PP slides attached above. We are expecting participants from DOE, EPRI, and Europe, Japan, and Canada. The goal is to have generally short presentations with ample time for discussion and interaction among meeting participants.
I am preparing NRC presentations for sssions on data needs for harvesting, sources of materials, and harvesting experience/lessons learned, which can be found below. The data needs and sources of materials presentations should be very short (5-10 min), while the lessons learned/experience talk should be about 20 min. I have drafted slides for these presentations, particularly includling input for metals.
The purpose of this meeting is to make you aware of the workshop and solicit input/assistance in developing these slides for electrical/cables and concrete topics.
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- NRC Perspective on Harvesting Experience and Lessons Learned
NRC Harvesting Experience
- RPV materials
- Shoreham, Midland
- Reactor vessel head CROM penetrations
- North Anna, Davis-Besse
- Pressurizer from St. Lucie
- Reactor internals from Zorita
- Joint harvesting and testing project with EPRI and international
- Neutron absorbers from Zion
- Harvesting coordinated with DOE and EPRI; Independent NRC testing
- Concrete from Zorita
- Cables from Zion and Crystal River
Previous Benefits of Harvesting
- Reduce unnecessary conservatism
- Flaw distributions and Master Curve information came from harvested materials to support PTS rule
- Understand in-service flaws
- Mockups for NDE qualification
- Leak rate methodology from studying in-service flaws
Technical Lessons Learned
- Harvesting can provide highly representative aged materials for research May be only practical source of representative aged materiall s, particu larly if irradiation and temperature are important factors
- Achieving high fluence levels with representative irradiation conditions through other means is very challenging May be able to use limited harvested materials to validate larger accelerated aging data set
- Important to gain as much inform1ation as possible in advance before committing to specific harvesting project Ideally a bounding, yet broadly representative, material/environment Understand material information (CMTRs if available) and plant operating conditions
Logistical Lessons Learned
- Harvesting is an expensive, time-consuming effort
- Must balance cost with potential benefits carefully
- High technical relevance of materials is needed to ensure value
- Leveraging resources with other research organizations helps mitigate cost cha I le nges Can introduce challenges for testing when aligning research priorities and interests of multiple organizations May be needed, particularly for expensive testing of irradiated materials
- Transporting irradiated materials, particularly internationally, is cumbersome and time-consuming Avoiding extra transport, espedally between countries, is highly recommended
NRC High-Priority Data Needs for Harvesting
Metals
- High fluence reactor internals
- >50 dpa 304 SS from high core outlet temp plant
- Bounding temperature and high fluence for void swelling
- Thermally aged unirradiated CASS
- >30 years at ~320°C; Validate accelerated aging data
- Moderate fluence (1-2 dpa) C.ASS
- Bolster technical basis for embrittlement in this fluence range
- RPV High fluence vessel with relatively high levels of minor alloying elements (Mn, P, etc.)
Through thickness section
- Measure fluence, toughness, and chemistry as a function of depth
- Validate fluence calculations
Metals
- C.omponents with known flaws
- Ex: weld overlays over known flaws
- Could be used for:
- NDE evaluations,
- effectiveness of mitigation techniques
- C.omponents with limiting fatigue life
- Confirm fatigue calculations are accurate by inspecting for flaws
Electrica I
- Cables
- Pow,e r cables energized and energized in normal operation
- Cables from in containment applications
- Electrical components
- lE MOVs from harsh and mild environments
- lE Air operated valves
- 4160 lE breakers lE Molded case breakers 480V, 250V DC, 125 voe,
- lE Relays from mild environment GE - HFA, Agastat timing relays, any from Westinghouse, Potter Brumfield, Stuthers Dunn etc.,
Concrete
- High fluence irradiated concrete?
- ASR?
- Large sections for structural testing?
Sources of Materials Metals
- Baral at SRNL
- Zorita materials at ANL
- 304SS ranging from <1 to 50 dpa
- SS weld up to 1 dpa
- Alloy 600 J-groove weld from Davis-Besse
- Alloy 600 CRD nozzle from North Anna
- Alloy 182/82 from VC Summer
- Shoreham, Midland
Electrical Concrete Recently Shutdown U.S. Plants Size Years in Shutdown Plant Design Notes (MWt) Operation Date Kewaunee W 2-loop 1772 39 2013 Economics SONGS 2/3 CE 2-loop 3438 31/30 2013 SG issues Containment Crysta I River 3 B&W 2609 36 2013 delamination Vermont Yankee BWR-4/Mark-1 1912 42 2015 Fort Calhoun CE 2-loop 1500 43 2016 Economics
Planned Shutdown U.S. Plants Size Years in Planned Plant Design (MWt) Notes Operation Shutdown Palisades CE 2565 47 2018 Pilgrim BWR-3/Mark-1 2028 47 2019 Oyster Creek BWR-2/Mark-1 1930 so 2019 Indian Point W 4-loop 3216 48/46 2021 2/3 Diablo Canyon W 4-loop 3411 40 2024-5 1/2
Ex-Plant Materials Harvesting Workshop March 7-8, 2017 USNRC HQ Rockville, MD, USA
Meeting Logistics
- Workshop will be held at NRC's Three White Flint North building Directly adjacent to the White Flint Metro stat ion Nearest hotel wit hin walking distance: Bethesda North Marriott Hot el &
Conference Center
- Workshop is a non-public meeting to encourage open discussion
- Presentations and meeting summary will be distributed among meeting participants only
- GoToMeeting webinar will be available to support additional attendees Webinar attendees will be primarily observers
- Limited opportun ities for webinar attendee participation in discussion if time allows Discussion wi U be recorded through GoToMeeting software to aid capturing discussion in meeting summary
Motivation
- With plants shutting down both in the U.S. and internationally, there are increasing opportunities to harvest components from decommissioning plants
- Past harvesting efforts generally more reactive as opportunities arose, rather than proactively planned
- Ex-plant materials may be valuable because they have been exposed to actual in-service plant operating conditions
- Can reduce the uncertainty associated with the applicability of the aging conditions
- Insights from research on harvested materials can address technical data needs identified for extended plant operation
- Lessons learned from past harvesting programs can help improve future harvesting efforts Challenges encountered in previous programs can be shared and mitigated or avoided in future programs
Approach
- Domestic and international researchers, industry, regulators, 1
and decom1m issioning companies discuss benefits and challenges with ex-plant harvesting
- Encourage sharing of lessons learned as well as areas of common interest
- Workshop consists of topical sessions with short presentations and significant time for open discussion
- Goal is to maximize engagement among meeting participants
- Scope includes any materials aging issue that could benefit from harvesting, including metals, cables, and concrete
Expected Outcome
- Participants become better informed and aware of the benefits and challenges associated with ex-plant harvesting
- Discussions help identify areas of common interest for harvesting to address technical data needs
- Presentations and discussions provide the starting point for a "database" of harvested materials and future harvesting o p po rt unities
- Contacts are made among research organizations to allow for further discussion of specific harvesting projects
Session Expectations
- Session 1 Motivation for Harvesting Perspective from panel participants on their organizations' interest in and motivation for harvesting Brief (5-10 minute) presentation from each panel member followed by general discussion
- Session 2 Technical Data Needs for Harvesting Presenters share high-priority data needs that may he best addressed by harvesting
- Where does harvesting hold particular value compared to other sources of technical data 15-20 minute presentations followed by open discussion of technical data needs for harvesting
Session Expectations
- Session 3 Sources of Mlaterials Information on previously harvested materials and future harvesting opportunities
- Materials located at research and vendor facilities
- Decommissioning plants that may allow for future harvesting Short 5-10 minute presentations followed by open discussion Starting point for potential database of previously harvested materials and future harvesting opportunities
- Session 4 Harvesting Experience: Lessons Learned and Practical Aspects Improving future efforts with lessons learned from past programs
- Pitfalls to avoid and strategies to improve likelihood of success Practical perspective from non-researchers on how harvesting interfaces with the decommissioning process International decommissioning and harvesting experience 20-30 minute presentations followed by open discussion
Session Expectations
- Session 5 Future Harvesting Program Planning
- Technical and logistical information needed when planning a specific harvesting program Perspective from panel participants on the workshop Next steps and actions from workshop Potentia l areas of common interest for future harvesting programs Brief (5-10 minute) presentation from each panel member followed by general discussion
Note to requester: The attachments are immediately following .
From: Hiser, Matthew Sent: Thu, 2 Feb 2017 15:30:22 +0000 To: Kirk, Mark
Subject:
Harvesting Workshop Attachments: Ex-Plant Materials Harvesting Workshop.pptx, Harvesting Workshop Announcement.docx, Condensed Workshop Agenda.docx Hi Mark, The workshop is on March 7-8 in 3WFN 1C3. I've attached a few documents describing the workshop.
Thanks!
Matt Matthew Hiser Materials Engineer US uclear Regulatory Commission I Office of uclear Regulatory Research Division of Engineering I Corrosion and Metallurgy Branch Phone: 30 l-415-2454 I Office: TWFN I 0D62 Matthew.Hiser@nrc.gov
Ex-Plant Materials Harvesting Workshop March 7-8, 2017 USNRC HQ Rockville, MD, USA
Meeting Logistics
- Workshop will be held at NRC's Three White Flint North building Directly adjacent to the White Flint Metro stat ion Nearest hotel wit hin walking distance: Bethesda North Marriott Hot el &
Conference Center
- Workshop is a non-public meeting to encourage open discussion
- Presentations and meeting summary will be distributed among meeting participants only
- GoToMeeting webinar will be available to support additional attendees Webinar attendees will be primarily observers
- Limited opportun ities for webinar attendee participation in discussion if time allows Discussion wi U be recorded through GoToMeeting software to aid capturing discussion in meeting summary
Motivation
- With plants shutting down both in the U.S. and internationally, there are increasing opportunities to harvest components from decommissioning plants
- Past harvesting efforts generally more reactive as opportunities arose, rather than proactively planned
- Ex-plant materials may be valuable because they have been exposed to actual in-service plant operating conditions
- Can reduce the uncertainty associated with the applicability of the aging conditions
- Insights from research on harvested materials can address technical data needs identified for extended plant operation
- Lessons learned from past harvesting programs can help improve future harvesting efforts Challenges encountered in previous programs can be shared and mitigated or avoided in future programs
Approach
- Domestic and international researchers, industry, regulators, 1
and decom1m issioning companies discuss benefits and challenges with ex-plant harvesting
- Encourage sharing of lessons learned as well as areas of common interest
- Workshop consists of topical sessions with short presentations and significant time for open discussion
- Goal is to maximize engagement among meeting participants
- Scope includes any materials aging issue that could benefit from harvesting, including metals, cables, and concrete
Expected Outcome
- Participants become better informed and aware of the benefits and challenges associated with ex-plant harvesting
- Discussions help identify areas of common interest for harvesting to address technical data needs
- Presentations and discussions provide the starting point for a "database" of harvested materials and future harvesting o p po rt unities
- Contacts are made among research organizations to allow for further discussion of specific harvesting projects
Session Expectations
- Session 1 Motivation for Harvesting Perspective from panel participants on their organizations' interest in and motivation for harvesting Brief (5-10 minute) presentation from each panel member followed by general discussion
- Session 2 Technical Data Needs for Harvesting Presenters share high-priority data needs that may he best addressed by harvesting
- Where does harvesting hold particular value compared to other sources of technical data 15-20 minute presentations followed by open discussion of technical data needs for harvesting
Session Expectations
- Session 3 Sources of Mlaterials Information on previously harvested materials and future harvesting opportunities
- Materials located at research and vendor facilities
- Decommissioning plants that may allow for future harvesting Short 5-10 minute presentations followed by open discussion Starting point for potential database of previously harvested materials and future harvesting opportunities
- Session 4 Harvesting Experience: Lessons Learned and Practical Aspects Improving future efforts with lessons learned from past programs
- Pitfalls to avoid and strategies to improve likelihood of success Practical perspective from non-researchers on how harvesting interfaces with the decommissioning process International decommissioning and harvesting experience 20-30 minute presentations followed by open discussion
Session Expectations
- Session 5 Future Harvesting Program Planning
- Technical and logistical information needed when planning a specific harvesting program Perspective from panel participants on the workshop Next steps and actions from workshop Potentia l areas of common interest for future harvesting programs Brief (5-10 minute) presentation from each panel member followed by general discussion
Ex-Plant Materials Harvesting Workshop Location: NRG Headquarteirs in Rockville, MD, USA Dates: March 7-8, 2017 Motivation:
- There are increasing opportunities to harvest the safety-critical components from decommissioning plants, both domestic and international.
- The harvested materials are valuable because they have been exposed to actual in-service plant operating conditions (temperature, irradiation, coolant, etc.), unlike virgin materials tested under simulated conditions in the lab.
- Data from ex-plant materials should help address technical gaps identified for extended operation of nuclear power plants due to highly relevant aging conditions.
Purpose and Objective:
- For NRG staff and interested stakeholders to have greater awareness and knowledge of the benefits I
and challenges associated with ex-plant harvesting.
- Facilitate contacts and communication to enable 0 0 0 0 0 l;I O 0 specific cooperative ex-plant harvesting programs to be initiated.
Workshop Topics: ooooo i ooo
- Harvesting decision-making and prioritization o Technical data needs best addressed by harvesting o Technical information needed in advance of harvesting
- Sources of materials:
o Decommissioning reactors o Operating reactors - replaced components o Previous harvesting programs - "boneyards" o Tracking available materials
- Harvesting process o Lessons learned from harvesting experience o Perspective of utility-owner and decommissioning contractor on harvesting o Communication and coordination between decommissioning and researchers
- International collaborative programs on specific components at specific plants Workshop will consist of solicited presentations followed by discussion periods. If interested in attending or learning more about the workshop, please reach out to the contacts below.
Contacts: Robert Tregoning, Robert.Tregoning@nrc.gov Matthew Hiser, Matthew.Hiser@nrc.gov Patrick Purtscher, Patrick.Purtscher@nrc.gov
Draft Agenda - March 7-8, 2017 Harvesting Workshop Tuesday, March 7, 2017 Introduction
- Overview of workshop purpose and objectives Session 1: Motivation for Harvesting
- Solicited presentations from EPRI, DOE, NRC, and international organizations followed by panel discussion Session 2: Technical data needs best addressed by harvesting
- Solicited presentations from EPR I, DOE, NRC , and international organizations followed by open discussion Session 3: Sources of Materials
- Solicited presentations from EPRI, DOE, NRC, and international organizations followed by open discussion Wednesday, March 8, 2017 Session 4: Harvesting Experience: Lessons learned and practical aspects
- Solicited presentations from EPR I, DOE, NRC, U.S. utility, decommissioning companies, and international organizations followed by open discussion Session 5: Future Harvesting Program Planning
- Solicited presentations from EPRI, DOE, NRC, and international organizations followed by open and panel discussion
Subject:
Harvesting Workshop Location: HQ-TWFN -10A73-Bp Start: Mon 1/30/2017 10:00 AM End: Mon 1/30/20171 1:00AM Show Time As: Tentative Recurrence: (none)
Meeting Status: Not yet responded Organizer: Hiser, Matthew Required AttendeesTregoning, Robert; Purtscher, Patrick Resources: HQ-TWFN -10A73- 8p Discuss latest status of workshop planning.
Subject:
Harvesting Workshop Location: HQ-TWFN - 1OA73-Bp Note to requester:
Attachments are immediately Start: Mon 1/23/2017 9:00 AM following.
End: Mon 1/23/2017 10:00 AM Show Time As: Tentative Recurrence: (none)
Meeting Status: Not yet responded Organizer: Hiser, Matthew Required AttendeesTregoning, Robert; Purtscher, Patrick Resources: HQ-TWFN - 10A73- 8p Adding latest workshop planning document and draft workshop intro slides.
Following my call with DOE and EPRI last week and additional contacts we've made, let's look at the agenda and try to finalize spea kers for each slot.
' ' ' I II ' I' I I' ' 11 , \ ~ ,I I1' '
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Workshop Contacts Name Organization Email Contact Through NaokiSoneda CRIEPI soneda@criei:1i .den ken .or. ii:1 Rob Rachid Chaouadi SCK-CEN rachid.chaouadi@sckcen.be Rob Kazunobu Sakamoto JNRA kazunobu sakamoto@nsr.go.jQ Rob Gerry van Noordennen Energy Solutions gQvannoordennen@energ~solutions.com Pat/Tom R.
Chuck Tomes Dominion charles.a.tomes@dom.com Matt Sherry Bernhoft EPRI sbernhoft@eQri.com Robin Dyle EPRI rd1le@e12ri.com Jean Smith EPRI jmsmith@eQri.com Al Ahluwalia EPRI kahluwal@eQri.com Tom Rosseel DOE rosseeltm@ornl.gov Rich Reister DOE Rich ard. Reister@n uclea r.ene rg1.gov Keith Leonard DOE leonardk@ornl.gov Mikhail A. Sokolov DOE sokolovm@ornl.gov Leo Fyfeld DOE/PNNL Pat Purtscher NRC Patrick. Purtscher@n re.gov Rob Tregoning NRC Robert.Tregon i ng@nre.gov Matt Hiser NRC Matthew.Hiser@nrc.gov Anders Jenssen Studsvik anders.jenssen@studsvik.se Matt/Jean Daniel Tello CNSC daniel.tello@canada.ca Matt Heather Malikowski PWROG Heather.Malikowski@exeloncori'.1.com Matt Jim Molkenthin PWROG molkenj1;1@westinghouse.com Matt Regis Nhili MAI regis.nhili@edf.fr Rob Uwe Jendrich GRS Uwe.Jendrich@grs.de Rob Pradeep Ramuhalli PNNL PradeerrRamuhalli@Qnnl.gov Session NRC Lead DOE Lead EPRI Lead 1 Rob Tregoning Rich Reister Sherry Bernhoft/Robin Dyle 2 Pat Purtscher Keith Leonard (ORNL) Sherry Bernhoft/Robin Dyle 3 Matt Hiser Tom Rosseel (ORNL) Sherry Bernhoft/Robin Dyle 4 Matt Hiser Tom Rosseel (ORNL) Sherry Bernhoft/Robin Dyle 5 Rob Tregoning Rich Reister Sherry Bernhoft/Robin Dyle NRC Presentations Session Topic Speaker 1 Why our organization is interested in harvesting Tregoning 2 Overview of data needs best addressed by harvesting Pradeep / PNNL Available materials from decommissioning plants and Hi ser 3
past harvesting programs Perspective on Harvesting Lessons Learned/ Prior TBD 4
Experience Technical information needed for informed harvesting Pradeep / PNNL 5
decisions 5 Perspective on future harvesting planning Tregoning
Session Topic Organization Speaker St atus EPRI DOE Why our organization is interested in harvesting NRC Robert Tregoning 1
MAI or JRC Emails exchanged JNRA Emails exchanged PANEL DISCUSSION Overview of data needs best addressed by harvesting PNNL (for N RC) Pradeep Ramuhalli EPRI 2 DOE Perspective on det ailed data needs from harvesting MAI or JRC SCK-CEN? CNSC? Emails exchanged JNRA CRIEPI? Emails exchanged Available materials from decommissioning plants and past NRC Matt Hiser harvesting programs Available materials from operating r eactors and past harvesting EPRI programs PWROG Email sent 3 Available materials at DOE labs from past harvesting programs DOE (ORNL?)
Upcoming decommissioning sites Energy Solutions Gerry van Noordennen Contact through Tom R.
EdF/MAI Emails exchanged International sources of materials Japan Emails exchanged Korea Need to work w/ Ahluwalia EPRI Perspective on Harvesting Lessons Learned/ Prior Experience DOE NRC Decommissioning process and harvesting: schedule, site-specific, Energy Solutions 4 Gerry van Noordennen Contact through Tom R.
timing for different components Dominion or Utility-Owner perspective on harvest ing and decommissioning Emails exchanged Exelon International decommissioning and harvesting experience Germany? Emails exchanged Technical information needed for informed harvesting decisions PNNL (for N RC) Pradeep Ramuhalli EPRI DOE 5 Per spective on future harvesting planning NRC Robert Tregoning MAI or JRC Emails exchanged JNRA Emails exchanged PANEL DISCUSSION
Discussion of Next Steps/ Actions Ex-Plant Materials Harvesting Workshop March 7-8, 2017 USNRC HQ Rockville, MD, USA
Motivation
- With plants shutting down both in the U.S. and internationally, there are increasing opportunities to harvest components from decommissioning plants.
- Ex-plant materials are valuable because they have been exposed to actual in-service plant operating conditions unlike virgin materials tested under simulated conditions in the lab
- Reduces the uncertainty associated with the applicability of the aging conditions
- Insights from research on harvested materials can address technical data needs identified for extended plant operation
- Lessons learned from past harvesting programs can help improve future harvesting efforts
Approach
- Two-day workshop w ith interested stakeholders to discuss benefits and challenges associated with ex-plant harvesting.
- Insights from domestic and international researchers, industry, regulators, and decommissioning companies' experience shared
- Encourage sharing of lessons learned as well as areas of common interest for potential new research programs
- Topical sessions with several short presentations and significant time for open discussion
- Goal is open discussion and engagement among all meeting participants, rather than presenter/audience mentality
Expected Outcome
- Participants are better informed and aware of the benefits and challenges associated with ex-plant harvesting
- Discussions help identify areas of common interest for harvesting to address technical data needs
- Presentations and discussions provide the starting point for a "database" of harvested materials and future harvesting o p po rt unities
- Contacts are made among research organizations to allow for further discussion of specific harvesting projects
Subject:
Harvesting Workshop Location: HQ-TWFN -1OA73-Bp Start: Mon 1/23/2017 9:00 AM End: Mon 1/23/2017 10:00 AM Show Time As: Tentative Recurrence: (none)
Meeting Status: Not yet responded Organizer: Hiser, Matthew Required AttendeesHiser, Matthew; Tregoning, Robert; Purtscher, Patrick Resources: HQ-TWFN -10A73- 8p Following my call with DOE and EPRI last week and additional contacts we've made, let's look at the agenda and try to finalize spea kers for each slot.
From: Hiser, Matthew Sent: Thu, 12 Jan 201712 :39:30 +0000 To: Tregoning, Robert;Purtscher, Pat rick
Subject:
Harvesting Workshop Pat said he has to make a quick call at 8:00, so let's plan to meet at 8:15.
Thanks!
Matt Matthew Hiser Materials Engineer US Nuclear Regulatory Commission I Office of uclear Regulatory Research Division of Engineering I Corrosion and Metallurgy Branch Phone: 30 1-4 15-2454 I Office: TWFN l 0D62 Matthew.Hiser@nrc.gov
Subject:
Harvesting Workshop Note to requester: Attachment is immediately following.
Location: HQ-TWFN -10A73-Bp Start: Thu 1/12/2017 8:00 AM End: Thu 1/12/2017 9:00 AM Show Time As: Tentative Recurrence: (none)
Meeting Status: Not yet responded Organizer: Hiser, Matthew Required AttendeesTregoning, Robert; Purtscher, Patrick Resources: HQ-TWFN -10A73- 8p Can we move this a little earlier tomorrow since I now have a conflict at 9:00?
Here is a workshop planning document I've created with a list of contacts / expected attendees and a table laying out all the planned presentations and sessions to track confirmed speakers.
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Workshop Contacts Name Organization Email NaokiSoneda CRIEPI soneda@crie12i.den ken.or. i12 Rach id Chaouadi SCK-CEN rachid.chaouadi@sckcen.be Kazunobu Sakamoto JNRA kazunobu sakamoto@nsr.go.j12 Gerry van Noordennen Energy Solutions g12vannoordennen@energysolutions.com Dominion Sherry Bernhoft EPRI sbernhoft@e12ri.com Robin Dyle EPRI rdyle@e12ri.com Jean Smith EPRI jmsmith@e12ri.com Al Ahluwalia EPRI kah luwal@e12ri.com Tom Rosseel DOE rosseeltm@orn I.gov Rich Reister DOE Richard .Reister@nuclear.energy.gov Keith Leonard DOE leonardk@ornl.gov Mikhail A. Soko lov DOE sokolovm@ornl.gov Pat Purtscher NRC Patrick. Pu rt sch e r@nre.gov Rob Tregon ing NRC Robert.Tregoning@nrc.gov Matt Hiser NRC Matthew.Hiser@nrc.gov Anders Jenssen Studsvik anders.jenssen@studsvik.se Session NRC Lead DOE Lead EPRI Lead 1 Rob Tregoning Rich Reister Sherry Bernhoft/Robin Dy le 2 Pat Purtscher Ke ith Leonard (ORNL) Sherry Bernhoft/Robin Dyle 3 Matt Hiser Tom Rosseel (ORNL) Sherry Bernhoft/Robin Dy le 4 Matt Hiser Tom Rosseel (ORNL) Sherry Bernhoft/Robin Dy le 5 Rob Tregoning Rich Reiste r Sherry Bernhoft/Robin Dy le
Session Topic Organization Speaker Status EPRI DOE Why our organizat ion is interested in harvesting NRC 1
MAI or JRC JNRA PANEL DISCUSSION Overview of data needs best addressed by harvesting PNNL (for N RC) Pradeep Ramuhalli EPRI 2 DOE Perspective on detailed data needs from harvesting MAI or JRC SCK-CEN?
JNRA CRIEPI?
Available mater ials from decommissioning plants and past NRC harvesting programs Available materials from operating r eactors and past harvesti11g EPRI 3
programs Available materials at DOE labs from past harvesting programs DOE {ORNL?)
International sources of materials IAEA?
EPRI Perspective on Harvesting Lessons Learned/ Prior Experience DOE NRC 4 Decommissioning process and harvesting: schedule, site-specific, Energy Solut ions Gerry van Noordennen timing for different components Utility-Owner perspective on harvest ing and decommissioning Dominion?
International decommissioning and harvesting experience Germany?
Technical information needed for informed harvesting decisions PNNL (for N RC) Pradeep Ramuhalli EPRI DOE Per spective on future ha rvesting planning NRC 5
MAI or JRC JNRA PANEL DISCUSSION Discuss ion of Next Steps/ Actions
Subject:
Harvesting Workshop Location: HQ-TWFN -10A73-Bp Start: Thu 1/12/2017 9:00 AM End: Thu 1/12/2017 10:00 AM Show Time As: Tentative Recurrence: (none)
Meeting Status: Not yet responded Organizer: Hiser, Matthew Required AttendeesTregoning, Robert; Purtscher, Patrick Resources: HQ-TWFN -10A73- 8p I'll send out a summary of where things stand based on the email traffic from over the holidays in advance of this meeting.
Subj ect: Harvesting Workshop Location: Rob's office Start: Thu 12/8/2016 1:00 PM End: Thu 12/8/2016 2:00 PM INote to requester: The attachment is immediately following.
Show Time As: Tentative Recurrence: (none)
Meeting Status: Not yet responded Organizer: Hiser, Matthew Required AttendeesPurtscher, Patrick; Tregoning, Robert Following Rob's discussion with DOE and EPRI yesterday, let's review the newest version of the agenda and discuss next steps.
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Draft Agenda - March 7-8, 2017 Harvesting Workshop Tuesday, March 7, 2017 Introduction
- Overview of workshop purpose and objectives 8:00 - 8:15 o NRG Session 1: Why are we Interested in Harvesting? 8:15 -10:15
- DISCUSSION BREAK 10:15 - 10:30 Session 2: Technical data needs best addressed by harvesting 10:30 - 2:45
- Overview of data needs best addressed by harvesting o NRC/PNNL
- Perspective on harvesting data needs o MAI or JRC o JNRA
- DISCUSSION BREAK 2:45 - 3:00 Session 3: Sources of Materials 3:00 - 5:30
- Available materials from decommissioning plants and past harvesting programs o NRC
- Available materials from operating reactors and past harvesting programs o EPRI
- International harvestiing opportunities o IAEA?
- DISCUSSION
Wednesday, March 8, 2017 Session 4: Lessons learned from harvesting experience 8:00 - 12:00
- Decommissioning process vs. harvesting: schedule , site-specific, timing for different components o US decommissioning company (Energy Solutions)
- Decommissioning and harvesting plans and experience o International decommissioning company (Germany?)
- Owner perspective on harvesting and decommissioning o US utility (Dominion/Kewaunee, other?)
- DISCUSSION LUNCH 12:00 -1 :00 Session 5: Future Harvesting Program Planning 1:00 -4:00
- Technical information needed for informed harvesting decisions o NRC/PNNL
- DISCUSSION of Next Steps/ Actions
From: Hiser, Matthew Note to requester: Attachment is Sent: Wed, 23 Nov 2016 13 :28 :32 +0000 immediately following.
To: Moyer, Carol
Subject:
Harvesting Workshop Attachments: NRC Harvesting Workshop Announcemen t. docx Hi Carol, Here's the announcement we've been using to publicize the workshop.
Please let me know if you'd like more info © Thanks and happy Thanksgiving!
Matt Matthew Hiser Materials Engineer US Nuclear Regulatory Commission I Office of uclear Regulatory Research Divis ion of Engineering I Corrosion and Metallurgy Branch Phone: 301-415-24541 Office: TWFN 10D62 Matthew.Hiser@nrc.gov
Ex-Plant Materials Harvesting Workshop Location: NRG HQ in Rockville, MD Dates: March 7-8, 2017 Motivation:
- There are increasing opportunities to harvest the safety-critical components from decommissioning plants, both domestic and international.
- The harvested materials are valuable because they have been exposed to actual in-service plant operating conditions (temperature, irradiation, coolant, etc.), unlike virgin materials tested under simulated conditions in the lab.
- Data from ex-plant materials should help address technical gaps identified for extended operation of nuclear power plants due to highly relevant aging conditions.
Purpose and Objective:
- For NRG staff and interested stakeholders to have greater awareness and knowledge of the benefits and challenges associated with ex-plant harvesting.
- Facilitate contacts and communication to enable specific cooperative ex-plant harvesting programs to be initiated.
Workshop Topics:
- Harvesting decision-making and prioritization o Technical data needs best addressed by harvesting o Technical information needed in advance of harvesting
- Sources of materials:
o Decommissioning reactors o Operating reactors - replaced components o Previous harvesting programs - "boneyards" o Tracking available materials
- Harvesting process o Lessons learned from harvesting experience o Perspective of utility-owner and decommissioning contractor on harvesting o Communication and coordination between decommissioning and researchers
- International collaborative programs on specific components at specific plants
Note to requester: Attachment is immediately following .
From: Hiser, Matthew Sent: Fri, 19 Aug 2016 20:22 :32 +0000 To: Frankl, lstvan;Tregoning, Robert;Hull, Amy;Purtscher, Patrick
Subject:
Harvesting Workshop Attachments: Workshop Initial Plan. docx Hi everyone, Following from the meeting yesterday, I wanted to share the attached "initial plan" for the workshop, describing the purpose and objective, approach , and intended outcome, as well as potential dates and discussion topics. Please edit and/or comment freely.
I think this document could be useful for "socializing" this topic to a greater degree in NRR, in advance of a meeting of the internal steering committee on harvesting sometime next month. At that meeting we could hopefully do some significant brainstorming on what this workshop should look like and who to contact for participation .
Thanks!
Matt Matthew Hiser Materials Engineer US Nuclear Regulatory Commission I Office of uclear Regulatory Research Division of Engineering I Corrosion and Metallurgy Branch Phone: 301-415-2454 I Office: TWFN J0D62 Matthew.Hiser@nrc.gov
Ex-Plant Materials Harvesting Workshop Purpose and Objective:
- For NRC staff and interested stakeholders to have greater awareness and knowledge of the benefits and challenges associated with ex-plant harvesting.
- Facilitate contacts and communication to enable specific cooperative ex-plant harvesting programs to be initiated, leveraging limited NRC resources to produce highly representative techniical data of materials degradation for extended plant operation.
Approach:
- NRC staff host a 2-day workshop with interested stakeholders, including domestic and international utilities and research organizations, to discuss benefits and challenges associated with ex-plant harvesting.
- Format will include sessions with time for presentations and open discussion of different aspects of ex-plant materials harvesting.
- Views and insights from regulators, researchers, industry, and decommissioning companies both domestic and international will be encouraged.
Intended Outcome:
- NRC staff and stakeholders are better informed of the benefits and challenges associated with ex-plant harvesting.
- Contacts are made with domestic and international utilities and researchers to allow for further discussion of specific cooperative research projects that may address technical data gaps associated with materials degradation that can be best addressed through ex-plant harvesting.
Potential Dates:
- March 9-10, 2017 - Thursday/Friday before RIC
- March 16-17, 2017 - Thursday/Friday of RIC week
- March 20-21, 2017 - Monday/Tuesday after RIC Discussion Topics:
- Technical data needs best addressed by harvesting
- Lessons learned from harvesting experience
- Available materials from previous harvesting programs
- Technical information needed in advance of harvesting
- Harvesting decision-making / prioritization
- Harvesting from operating reactors - replaced or failed components
- Perspective of utility-owner and decommissioning contractor on harvesting
- Communication and coordination between decommissioning and researchers
Subj ect: Harvesting Workshop Agenda Brainstorming Location: HQ-TWFN -08C01-10p Start: Thu 11/3/2016 1:00 PM End: Thu 11/3/2016 2:00 PM Show Time As: Tentative Recurrence: (none)
Note to requester: Attachment is immediately following.
Meeting Status: Not yet responded Organizer: Hiser, Matthew Required AttendeesPurtscher, Patrick; Tregoning, Robert; Poehler, Jeffrey Resources: HQ-TWFN-08C01 - 10p Hi Rob, Jeff, Pat, I've put together an outline of an agenda for this workshop on harvesting that we are planning for March. My first cut at it is attached. I'd like to use this meeting to brainstorm how to structure the workshop and, if possible, who to ask to present and on what topics.
Rob and I were discussing trying to selectively target participants and presentations to cover the topics we'd like, rather than simply asking DOE and EPRI and others for their take on "harvesting." I think if we plan this well, we can get an interesting and substantive discussion. If not,, we may just get a rehash of SLR-type talks ...
Thanks!
Matt
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Draft Agenda - March 7-8 Harvesting Workshop
- Session 1 Tuesday Morning: Lessons learned from harvesting experience o NRC Intro o EPRI - Zorita o DOE - Zion o International?
- Session 2 Tuesday Afternoon: Technical data needs best addressed by harvesting o PNNL/NRC - overview o EPRI/NEI - data needs, other sources from operating reactors o DOE - data needs, other sources from boneyards, tracking available materials o Belgium - RPV o Japan
- Session 3 Wednesday morning: Practical aspects of harvesting programs - perspective of various stakeholders in harvesting process o US decommissioning company o US utility o Research perspective - EPRI or DOE or international o Germany?
- Session 4 Wednesday Afternoon: Harvesting Decision-making - Technical information needed in advance of harvesting, cost/benefit o PNNL - technical info needed for harvesting o EPRI - cost benefit o DOE - Zion experience to decision-making o Korea - Kori decision-making o Switzerland - Muhleberg o NRG - potential harvesting partnerships RPV, internals, piping, concrete, cables US, international opportunities Discussion Topics
- Harvesting decision-making and prioritization o Technical data needs best addressed by harvesting o Technical information needed in advance of harvesting
- Sources of materials:
o Decommissioning reactors o Operating reactors - replaced components o Previous harvesting programs - "boneyards" o Tracking available materials
- Harvesting process o Lessons learned from harvesting experience o Perspective of utility-owner and decommissioning contractor on harvesting o Communication and coordination between decommissioning and researchers
- International collaborative programs on specific components at specific plants
From: Hiser, Matthew Sent: Thu, 1 Dec 2016 15:37 :13 +0000 To: Tregoning, Robert
Subject:
Harvesting Workshop Agenda Attachments: Workshop Agenda 12-1-16.docx Hi Rob ,
I've incorporated the tweaks to the agenda that we discussed yesterday. We may want to try to schedule a meeting soon, given the rapidly approaching hol idays. We should try to get aligned with DOE and EPRI before the holidays and firm up/contact the presenters. When everyone gets back in January, we 'll be about 2 months from the workshop!
Thanks!
Matt Matthew Hiser Materials Engineer US Nuclear Regulatory Commission I Office of uclear Regulatory Research Division of Engi neering I Con-osion and Metallurgy Branch Phone: 301-415-2454 I Office: TWFN 10D62 Matthew.Hiser@nrc.gov
Draft Agenda - March 7-8, 2017 Harvesting Workshop Tuesday, March 7, 2017 Introduction
- NRC overview of workshop purpose and objectives 8:00 - 8:10 Session 1: Lessons learned from harvesting experience
- EPRI 8:10 - 8:45 o Perspective on Harvesting Lessons Learned I Prior Experience
- DOE 8:45 -9:20 o Perspective on Harvesting Lessons Learned / Prior Experience
- NRC 9:20 - 9:50 o Perspective on Harvesting Lessons Learned / Prior Experience BREAK 9:50 -10:05
- International (Japan?) 10:05 - 10:40 o International Perspective on Harvesting Lessons Learned DISCUSSION 10:40 - 11 :30 LUNCH 11 :30 - 12:30 Session 2: Technical data needs best addressed by harvesting
- PNNL/NRC 12:30 - 12:55 o Overview of data needs best addressed by harvesting
- DOE/industry 12:55 - 1:20 o Perspective on harvesting data needs
- International 1 :20 - 1 :45 o Perspective on harvesting data needs
- International 1:45 -2:10 o Perspective on harvesting data needs DISCUSSION 2:10 - 2:45 BREAK 2:45 -3:00 Session 3: Sources of Materials
- NRC 3:00 - 3:15 o Available materials from decommissioning plants and past harvesting programs
- EPRI/NEI 3:15-3:45 o Available materials from operating reactors and past harvesting programs
- International (IAEA?) 4:15-4:45
- International harvesting opportunities
DISCUSSION 4:45 -5:30 Wednesday, March 8, 2017 Session 4: Practical aspects of Harvesting
- US decommissioning company 8:00 - 8:40 o Decommissioning process vs. harvesting: schedule, site-specific, timing for different components
- International decommissioning company (Germany?) 8:40 -9:20 o Decommissioning and harvesting plans and experience
- US utility 9:20 -10:00 o Decommissioning process and plans o Owner perspective on harvesting and decommissioning BREAK 10:00 - 10:15
- Researcher perspective - (DOE/EPRI - joint?) 10:15 - 10:45 o Practical challenges to plan for and carry out harvesting DISCUSSION 10:45 - 11 :45 LUNCH 11 :45 - 12:45 Session 5: Future Harvesting Program Planning
- PNNL/NRC 12:45-1:15 o Technical information needed for informed harvesting decisions
- EPRI/NEI 1 :15 -1 :45 o Perspective on future harvesting efforts
- NRC 1:45- 2:15 o Perspective on future harvesting efforts
- International (France?) 2:15 - 2:45 o Perspective on future harvesting efforts
- DISCUSSION 2:45 -4:00 o Potential harvesting partnerships
- RPV, internals, piping, concrete, cables
- US, international opportunities
!Note to requester: Attachment is immediately following .
From: Hiser, Matthew Sent: Fri, 21 Oct 2016 13:05:22 +0000 To: Tregoning, Robert;lyengar, Raj
Subject:
Harvesting Workshop Announcement Attachments: NRC Harvesting Workshop Announcement.docx Hi Rob and Raj, Please find attached the f inal version of the harvesting workshop announcement. If you could share this with your contacts at DOE/EPRI (Raj), and internationally (Rob), that would be great to begin to publicize this workshop and receive feedback on the preferred dates as well as t hose interested to present at the workshop.
Thanks!
Matt
Ex-Plant Materials Harvesting Workshop Location: NRG HQ in Rockville, MD Potential Dates:
- March 16-17, 2017 - Thursday/Friday of RIC week
- March 20-21, 2017 - Monday/Tuesday after RIC Motivation:
- There are increasing opportunities to harvest the safety-critical components from decommissioning plants, both domestic and international.
- The harvested materials are valuable because they have been exposed to actual in-service plant operating conditions (temperature, irradiation, coolant, etc.), unlike virgin materials tested under simulated conditions in the lab.
- Data from ex-plant materials should help address technical gaps identified for extended operation of nuclear power plants due to highly relevant aging conditions.
Purpose and Objective:
- For NRG staff and interested stakeholders to have greater awareness and knowledge of the benefits and challenges associated with ex-plant harvesting.
- Facilitate contacts and communication to enable specific cooperative ex-plant harvesting programs to be initiated.
Workshop Topics:
- Harvesting decision-making and prioritization o Technical data needs best addressed by harvesting o Technical information needed in advance of harvesting
- Sources of materials:
o Decommissioning reactors o Operating reactors - replaced components o Previous harvesting programs - "boneyards" o Tracking available materials
- Harvesting process o Lessons learned from harvesting experience o Perspective of utility-owner and decommissioning contractor on harvesting o Communication and coordination between decommissioning and researchers
- International collaborative programs on specific components at specific plants
Note to requester: The attachment is immediately following.
From: Hiser, Matthew Sent: Fri, 9 Dec 2016 15:02 :11 +0000 To: Tregoning, Robert;Purtscher, Pat rick;Hiser, Allen;Poeh ler, Jeffrey
Subject:
Harvesting Workshop Announcement Attachments: Harvesting Workshop Announcement.docx All:
Please find attached the f inal version of the workshop announcement for distribution to any part ies that may be interest ed in participating in a discussion of ex-plant mat erials harvesting.
Thanks!
Mat t
Ex-Plant Materials Harvesting Workshop Location: NRG Headquarteirs in Rockville, MD, USA Dates: March 7-8, 2017 Motivation:
- There are increasing opportunities to harvest the safety-critical components from decommissioning plants, both domestic and international.
- The harvested materials are valuable because they have been exposed to actual in-service plant operating conditions (temperature, irradiation, coolant, etc.), unlike virgin materials tested under simulated conditions in the lab.
- Data from ex-plant materials should help address technical gaps identified for extended operation of nuclear power plants due to highly relevant aging conditions.
Purpose and Objective:
- For NRG staff and interested stakeholders to have greater awareness and knowledge of the benefits I
and challenges associated with ex-plant harvesting.
- Facilitate contacts and communication to enable 0 0 0 0 0 l;I O 0 specific cooperative ex-plant harvesting programs to be initiated.
Workshop Topics: ooooo i ooo
- Harvesting decision-making and prioritization o Technical data needs best addressed by harvesting o Technical information needed in advance of harvesting
- Sources of materials:
o Decommissioning reactors o Operating reactors - replaced components o Previous harvesting programs - "boneyards" o Tracking available materials
- Harvesting process o Lessons learned from harvesting experience o Perspective of utility-owner and decommissioning contractor on harvesting o Communication and coordination between decommissioning and researchers
- International collaborative programs on specific components at specific plants Workshop will consist of solicited presentations followed by discussion periods. If interested in attending or learning more about the workshop, please reach out to the contacts below.
Contacts: Robert Tregoning, Robert.Tregoning@nrc.gov Matthew Hiser, Matthew.Hiser@nrc.gov Patrick Purtscher, Patrick.Purtscher@nrc.gov
Note to requester: Attachmens are immediately following .
From: Hiser, Matthew Sent: Mon, 23 Jan 2017 21:24:16 +0000 To: Prokofiev, lou ri;Oberson, Greg
Subject:
Harvesting Workshop Info Attachments: Condensed Workshop Agenda.docx, Harvesting Workshop Announcement.docx Hi guys, Here is the info on the harvesting workshop! Let me know if you have any questions ...
Thanks!
Matt Matthew Hiser Materials Engineer US Nuclear Regulatory Commission I Offi ce of uclear Regu latory Research Division of Engineering I Corrosion and Metall urgy Branch Phone: 30 1-4 I 5-2454 I Office: TWFN I OD62 Matthew.Hiser@nrc.gov
Draft Agenda - March 7-8, 2017 Harvesting Workshop Tuesday, March 7, 2017 Introduction
- Overview of workshop purpose and objectives Session 1: Motivation for Harvesting
- Solicited presentations from EPRI, DOE, NRC, and international organizations followed by panel discussion Session 2: Technical data needs best addressed by harvesting
- Solicited presentations from EPR I, DOE, NRC , and international organizations followed by open discussion Session 3: Sources of Materials
- Solicited presentations from EPRI, DOE, NRC, and international organizations followed by open discussion Wednesday, March 8, 2017 Session 4: Harvesting Experience: Lessons learned and practical aspects
- Solicited presentations from EPR I, DOE, NRC, U.S. utility, decommissioning companies, and international organizations followed by open discussion Session 5: Future Harvesting Program Planning
- Solicited presentations from EPRI, DOE, NRC, and international organizations followed by open and panel discussion
Ex-Plant Materials Harvesting Workshop Location: NRG Headquarteirs in Rockville, MD, USA Dates: March 7-8, 2017 Motivation:
- There are increasing opportunities to harvest the safety-critical components from decommissioning plants, both domestic and international.
- The harvested materials are valuable because they have been exposed to actual in-service plant operating conditions (temperature, irradiation, coolant, etc.), unlike virgin materials tested under simulated conditions in the lab.
- Data from ex-plant materials should help address technical gaps identified for extended operation of nuclear power plants due to highly relevant aging conditions.
Purpose and Objective:
- For NRG staff and interested stakeholders to have greater awareness and knowledge of the benefits I
and challenges associated with ex-plant harvesting.
- Facilitate contacts and communication to enable 0 0 0 0 0 l;I O 0 specific cooperative ex-plant harvesting programs to be initiated.
Workshop Topics: ooooo i ooo
- Harvesting decision-making and prioritization o Technical data needs best addressed by harvesting o Technical information needed in advance of harvesting
- Sources of materials:
o Decommissioning reactors o Operating reactors - replaced components o Previous harvesting programs - "boneyards" o Tracking available materials
- Harvesting process o Lessons learned from harvesting experience o Perspective of utility-owner and decommissioning contractor on harvesting o Communication and coordination between decommissioning and researchers
- International collaborative programs on specific components at specific plants Workshop will consist of solicited presentations followed by discussion periods. If interested in attending or learning more about the workshop, please reach out to the contacts below.
Contacts: Robert Tregoning, Robert.Tregoning@nrc.gov Matthew Hiser, Matthew.Hiser@nrc.gov Patrick Purtscher, Patrick.Purtscher@nrc.gov
Note to requester: The attachments are immediately following.
From: Tregoning, Robert Sent: Tue, 20 Dec 2016 15:51:59 +0000 To: oliver.martin@ec.europa.eu
Subject:
Harvesting Workshop Attachments: Harvesting Workshop Announcement.docx, Condensed Workshop Agenda 12-12-16.docx Oliver:
I hope that this email finds you and your family well. I just want to follow-up on an email that Olli sent out for me this week. In early March, we're hosting a materials harvesting workshop. I've attached the workshop announcement and the condensed agenda for your information.
You can see that we are planning five unique sessions as part of the workshop. Each session has a specific theme, or objective, as outlined below (and in the attached agenda).
- 1. Session 1 will consist of short presentations and a panel discussion on the motivation for harvesting.
- 2. Session 2 will discuss data needs best met through harvesting.
- 3. Session 3 will discuss sources of materials for harvesting programs 4 . Session 4 will discuss lessons-learned from past harvesting programs and practical aspects associated with harvesting.
- 5. Session 5 will attempt to summarize the workshop and planning a harvesting program, as well as discuss actions and next steps I would welcome JRC participation in the workshop. I would also welcome a presentation from JRC in one or more of the sessions outlined above.
Do you, or someone else from JRC, have interest in participating and perhaps making a presentation or two? If so, please just respond and we can start working out the arrangements.
I hope you and your family have a Happy Holidays and a prosperous New Year.
Regards, Rob Robert Tregoning Technical Advisor for Materials US Nuclear Regulatory Commission Two White Flint North, M/S T-10 A36 11545 Rockville Pike Rockville, MD 20852-2738 ph: 301-415-2324 fax: 301-415-6671
Ex-Plant Materials Harvesting Workshop Location: NRG Headquarteirs in Rockville, MD, USA Dates: March 7-8, 2017 Motivation:
- There are increasing opportunities to harvest the safety-critical components from decommissioning plants, both domestic and international.
- The harvested materials are valuable because they have been exposed to actual in-service plant operating conditions (temperature, irradiation, coolant, etc.), unlike virgin materials tested under simulated conditions in the lab.
- Data from ex-plant materials should help address technical gaps identified for extended operation of nuclear power plants due to highly relevant aging conditions.
Purpose and Objective:
- For NRG staff and interested stakeholders to have greater awareness and knowledge of the benefits I
and challenges associated with ex-plant harvesting.
- Facilitate contacts and communication to enable 0 0 0 0 0 l;I O 0 specific cooperative ex-plant harvesting programs to be initiated.
Workshop Topics: ooooo i ooo
- Harvesting decision-making and prioritization o Technical data needs best addressed by harvesting o Technical information needed in advance of harvesting
- Sources of materials:
o Decommissioning reactors o Operating reactors - replaced components o Previous harvesting programs - "boneyards" o Tracking available materials
- Harvesting process o Lessons learned from harvesting experience o Perspective of utility-owner and decommissioning contractor on harvesting o Communication and coordination between decommissioning and researchers
- International collaborative programs on specific components at specific plants Workshop will consist of solicited presentations followed by discussion periods. If interested in attending or learning more about the workshop, please reach out to the contacts below.
Contacts: Robert Tregoning, Robert.Tregoning@nrc.gov Matthew Hiser, Matthew.Hiser@nrc.gov Patrick Purtscher, Patrick.Purtscher@nrc.gov
Draft Agenda - March 7-8, 2017 Harvesting Workshop Tuesday, March 7, 2017 Introduction
- Overview of workshop purpose and objectives Session 1: Motivation for Harvesting
- Solicited presentations from EPRI, DOE, NRC, and international organizations followed by panel discussion Session 2: Technical data needs best addressed by harvesting
- Solicited presentations from EPR I, DOE, NRC , and international organizations followed by open discussion Session 3: Sources of Materials
- Solicited presentations from EPRI, DOE, NRC, and international organizations followed by open discussion Wednesday, March 8, 2017 Session 4: Harvesting Experience: Lessons learned and practical aspects
- Solicited presentations from EPR I, DOE, NRC, U.S. utility, decommissioning companies, and international organizations followed by open discussion Session 5: Future Harvesting Program Planning
- Solicited presentations from EPRI, DOE, NRC, and international organizations followed by open and panel discussion
Subject:
Harvesting Workshop Planning Location: HQ-TWFN - 10A73- Bp Note to requester: Attachment is immediately following.
Start: Tue 2/21/2017 10:00 AM End: Tue 2/21/201711:00 AM Show Time As: Tentative Recurrence: (none)
Meeting Status: Not yet responded Organizer: Hiser, Matthew Required AttendeesTregoning, Robert; Purtscher, Patrick Resources: HQ-TWFN - 10A73- 8p Agenda
- Attendees o NRC staff o INL o German speaker
- Room setup
- Food o Coffee/tea options o Lunch
- TWFN and nearby restaurants o Dinner
- NRC slides
' 1' 1 ,I 'I I
, ,!, ,. .
- 1 , I ...
Workshop Contacts Name Ori?anization Email Contact Taku Arai CRIEPI a ra it@crieoi . den ken .or. i o Rob Sadao Higuchi CRIEPI higuchi@crie12i.denken.or.j12 Rob Japan Kazunobu Sakamoto JNRA kazunobu sakamoto@nsr.go.jQ Rob Yasuhiro Chimi JAEA chimi.'yasu h iro@jaea.go. ii:1 Rob Uwe Jendrich GRS Uwe.Jendrich@!!rs.de Rob Europe Rachid Chaouadi SCK-CEN rachid .chaouadi@sckcen.be Rob Daniel Tello CNSC daniel.tellocanada.ca Matt Canada Desire Ndomba CNSC desire.ndomba@canada.ca Karen Huynh AECL khuynh@aecl.ca Gerrv van Noordennen Energv Solutions P-nvannoordennen@enerP-vsolutions.com Matt us Bill Zipp Dominion william.f.zii:1~@dom.com Matt industry Arzu Alpan Westinghouse al12anfa@westinghouse.com Sherry Bernhoft EPRI sbernhoft@eori.com Robin Dyle EPRI rd'yle@eQri.com EPRI Jean Smith EPRI jmsmith@ei:1ri.com Al Ahluwalia EPRI kahluwal@e1:1ri.com Tom Rosseel ORNL rosseeltm@ornl.gov Rich Reister DOE Richard.Reister@nuclear.energ'y.gov DOE Keith Leonard ORNL leonardk@ornl.gov Mikhail A. Sokolov ORNL sokolovm@ornl.gov Pradeep Ramuhall i PNNL Pradeei:1.Ramuhalli@Qnnl .gov Pat Purtscher NRC Patrick.Purtscher@nrc.gov Rob Tregoning NRC Robert.Tregoning@nrc.gov Matt Hiser NRC Matthew.Hiser@nrc.gov Mita Sircar NRC Pat Tom Koshy NRC NRC NRC NRR NRC NRR NRC Maybe? Anders Jenssen Studsvik anders.ienssen@studsvik.se Kelly Cunningham INL kell'y.cunningham@inl.gov Webinar Contacts Name Organization Email Contact Wei-Wu Chao Taiwan AEC wwchao@aec.llov.tw Keita Naito EPRI/Chukogu knaito@guestresearcher.e1:1ri.com Heather Malikowski PWROG Leo Fifield PNNL leo.fifield@Qnnl.gov Kelly Cunningham INL kell'y.cunningham@inl.gov
Session NRC Lead DOE Lead EPRI Lead 1 Rob Tregoning Rich Reister Sherry Bernhoft/Robin Dyle 2 Pat Purtscher Keith Leonard Sherry Bernhoft/Robin Dyle 3 Matt Hiser Tom Rosseel Sherry Bernhoft/Robin Dyle 4 Matt Hiser Tom Rosseel Sherry Bernhoft/Robin Dyle 5 Rob Tregoning Rich Reister Sherry Bernhoft/Robin Dyle NRC Presentations Session Topic Speaker 1 Why our organization is interested in harvesting Tregoning 2 Overview of data needs best addressed by harvesting Pradeep / PNN L 3 Availab le materials from decommission ing plants and past Hiser 4 Perspective on Harvest ing Lessons Learned/ Prior Experience TBD 5 Technical information needed for informed harvesting decisions Pradeep / PNNL 5 Perspective on futu re harvesting planning Tregoning
Session Tooic Organization Soeaker Present ation Title EPRI Sherry Bernhoft DOE Rich Reister Why ou r organization is interested in harvesting NRC Rob Tregoning 1
GRS? Uwe Jendrich CRIEPI Taku Arai PAN EL DISCUSSION Overview of data needs best addressed bv harvesting PNNL (for NRC) Pradeeo Data Needs Best Add ressed Bv Harvesting DOE Keith Leonard 2 NRC Matt Hiser High-Priority Data Needs for Harvesting Perspect ive on detailed data needs from harvesting SCK-CEN Rach id Chaouadi Review of past RPV s.ampling test programs and Westinghoiuse Arzu Alpan Importance of Harvesting to Evaluate Radiation Available materials from decommissionins: olants and NRC Matt Hiser Sources of Materials: Past N RC Harvesting and Available materials from operating reactors aind past EPRI Al Ahluwalia Available materials at DOE labs from past harvesting DOE Tom Rosseel 3 Upcoming decommissioning sites Energy Solutions Gerry van GRS? Uwe Jendrich International Harvesting Opportunities Westinghoiuse? Arzu Alpan Potential Harvesting of Concrete from Mih ama CNSC EPRI Jean Smith Perspective on Harvesting Lessons Learned/ Prior DOE Tom Rosseel Experience NRC Matt Hiser NRC Perspective on Harvesting Experience and CRIEPI Taku Arai 4
Decommissioning process and harvesting: schedule, Energy Solutions Gerry van Uti lity-Owner perspective on harvesting and Dominion Bill Zi pp International decommissioning and harvesting Germany?
experience Technical information needed for informed harvesting PNNL (for NRC) Pradeeo Technical Information Needed for Informed EPRI Sherry Bernhoft Perspective on future h arvesting planning DOE Rich Reister 5
NRC Robert PANEL DISCUSSION Discussion of !Next Steps/ Actions
Note to requester: Attachments are immediately following.
From: Hiser, Matthew Sent: Mon, 12 Dec 2016 19:43:41 +0000 To: Tregoning, Robert;Purtscher, Patrick Cc: Poehler, Jeffrey;Hiser, Allen
Subject:
Harvesting Workshop Plans Attachme nts: Workshop Agenda 12-12-16.docx, Condensed Workshop Agenda 12-12-16.docx Hi Rob and Pat, Following our meeting last week, I made the appropriate updates to the workshop agenda and have attached it to this emai l. I have also attached a "condensed" workshop agenda that we can share with any interested attendees looking for a little more info.
We agreed that Rob will take tlhe lead for organizing Sessions 1 and 5, Pat will take session 3, and I will take sessions 2 and 4.
Action items from that meeting are summarized below:
- Rob: send revised agenda to EPRI/DOE and ask for their leads for each session
- Rob: send announcement to CSNI and other international contacts
- Pat: contact decommissioning branch for contact at EnergySolutions for decommissioning presentation
- Matt: Contact Chuck Tomes at Dominion for U.S. utility talk The list of international parties we think could be interested include:
- ENSI (Muhleberg in Switzerland)
- KINS/KAERI (Kori plant in Korea)
- SCK - RPV interest in Belgium
- MAI in France
- JRC in EU
- JNRA in Japan
- German decommissioning company Thanks!
Matt
Draft Agenda - March 7-8, 2017 Harvesting Workshop Tuesday, March 7, 2017 Introduction
- Overview of workshop purpose and objectives 8:00 - 8:15 o NRG Session 1: Motivation for Harvesting 8:15 - 9:45
- Why our organization is interested in harvesting (short, 5-10 min presentations) o EPRI o DOE o NRC o MAI orJRC o JNRA
- PANEL DISCUSSIOIN with prepared questions BREAK 9:45 - 10:00 Session 2: Technical data needs best addressed by harvesting 10:00 -12:00
- Overview of data needs best addressed by harvesting o NRC/PNNL
- Perspective on harvesting data needs 1:00 - 2:15 o JNRA
- DISCUSSION BREAK 2:15 - 2:30 Session 3: Sources of Materials 2:30 - 5:30
- Available materials from decommissioning plants and past harvesting programs o NRC
- Available materials from operating reactors and past harvesting programs o EPRI
- International sources of materials o IAEA?
- DISCUSSION
Wednesday, March 8, 2017 Session 4: Harvesting Experience: Lessons learned and practical aspects 8:00 - 12:00
- Decommissioning process vs. harvesting: schedule, site-specific, timing for different components o US decommissioning company (Energy Solutions)
- Decommissioning and harvesting plans and experience o International decommissioning company (Germany?)
- Owner perspective on harvesting and decommissioning o US utility (Dominion/Kewaunee, other?)
- DISCUSSION LUNCH 12:00 -1 :00 Session 5: Future Harvesting Program Planning 1:00 -4:00
- Technical information needed for informed harvesting decisions o NRC/PNNL
- DISCUSSION of Next Steps / Actions
- PANEL DISCUSSION with prepared questions
Draft Agenda - March 7-8, 2017 Harvesting Workshop Tuesday, March 7, 2017 Introduction
- Overview of workshop purpose and objectives Session 1: Motivation for Harvesting
- Solicited presentations from EPRI, DOE, NRC, and international organizations followed by panel discussion Session 2: Technical data needs best addressed by harvesting
- Solicited presentations from EPR I, DOE, NRC , and international organizations followed by open discussion Session 3: Sources of Materials
- Solicited presentations from EPRI, DOE, NRC, and international organizations followed by open discussion Wednesday, March 8, 2017 Session 4: Harvesting Experience: Lessons learned and practical aspects
- Solicited presentations from EPR I, DOE, NRC, U.S. utility, decommissioning companies, and international organizations followed by open discussion Session 5: Future Harvesting Program Planning
- Solicited presentations from EPRI, DOE, NRC, and international organizations followed by open and panel discussion
Note to requester: Attachments are immediate! followin .
From: Hiser, Matthew Sent: Wednesday, March 1, 2017 3:06 PM To: Sircar, Madhumita; Pires, Jose; Seber, Dogan; Philip, Jacob; Ray, Sheila; Koshy, Thomas; Taylor, Gabriel; Murdock, Darrell; Kirk, Mark Cc: Tregoning, Robert; Purtscher, Patrick
Subject:
Harvesting Workshop Slides Attachments: NRC Perspective on Harvesting Experience and Lessons Learned.pptx; NRC Technical Data Needs for Harvesting.pptx; Sources of Materials.pptx Thank you for your input on the NRC slides for t he harvesting worksho1P. I have incorporat ed all comments and input received and attached the latest version of the slides to be presented next week.
Thanks!
Matt
Sources of Materials Metals
- Examples of harvested materials used in NRC research programs:
Boral from Zion SS plate and welds from Zorita
- Alloy 600 J-groove weld from Davis-Besse
- Alloy 600 CRD nozzle from North Anna
- Shoreham, Midland
Electrica I
- Zion
- 4.16kV non-segregated bus duct
- Used in NRC / OECD High Energy Arc Fault Testing
- Bellefonte
- 8 Electrical enclosures
- Used in NRC very early warning fire detection testing (NUREG-2180)
- Used in NRC heat release rate testing (NUREG/CR-7197)
Recently Shutdown U.S. Plants Size Years in Shutdown Plant Design (MWt) Operation Date Kewaunee W 2-loop 1772 39 2013 SONGS 2/3 CE 2-loop 3438 31/30 2013 Crystal River 3 B&W 2609 36 2013 Vermont Yankee BWR-4/Ma rk-1 1912 42 2015 Fort Calhoun CE 2-loop 1500 43 2016
Planned Shutdown U.S. Plants Size Years in Planned Plant Design (MWt) Operation Shutdown Palisades CE 2565 47 2018 Pilgrim BWR-3/Mark-1 2028 47 2019 Oyster Creek BWR-2/Mark-1 1930 so 2019 Indian Point 2/3 W 4-loop 3216 48/46 2021 Diablo Canyon 1/2 W 4-loop 3411 40 2024-5
Additional Information from Plants
- Point of Contact
- Drawings and plant design information
- To understand location of components within plant
- Size and dimensions of components
- Operating history
- Environmental information (e.g., temperature, fluence, humidity, pressure, etc.) for components of interest
- Material information
- Fabrication records, CMTRs
- Inspection records
- Components with known flaws
NRC High-Priority Data Needs for Harvesting
Metals
- RPV High fluence & high shift vessel with well-established unirradiated properties (or a means to estimate them)
- Through thickness section to validate fluence & attenuation models
- Measure fluence, toughness, & chem1istry as a function of through-thickness position Samples from virtually any vessel
- Of sufficient size to enable measurement of both the Charpy transition curve and master curve transition temperature TO
- This testing
- Enables demonstration of the conservatism of regulatory approaches for transition temperature prediction
- Provides data supporting evolution from the use of correlative (Charpy-based) to direct measurement (fracture toughness-based) approaches
Metals
- CASS and lnterna l s High fluence reactor internals
- >50 dpa 304 SS from high core outlet temp plant
- Bounding temperature and high fluence for void swelling
- Thermally aged unirradiated CASS
- >30 years at ~320°C; Validate accelerated aging data
- Moderate fluence {1-2 dpa} CASS
- Bolster technical basis for embrittlement in this fluence range
- Components with known flaws
- Example: weld overlays over known flaws
- NDE evaluations or to assess effectiveness of mitigation techniques
- C.omponents with limiting fatigue life
- Confirm fatigue calculations are accurate by inspecting for flaws
Electrica I
- Cables Power cables energized and de-energized in normal operation Cables from in containment applications Cables protected with fire retardant coating
- Electrical components lE MOVs from harsh and mild environments lE Air operated valves; 4160 lE breakers lE Molded case breakers 480V, 250V DC, 125 VDC, lE Relays from mild environment GE - HFA, Agastat timing relays, any from Westinghouse, Potter Brumfield, Stuthers Dunn etc.,
Electrical penetrations; Batteries
- Fire research interest Electrical enclosures
Concrete
- Structures exposed to high radiation
- Post-tensioned structures
- Corrosion of reinforcing steel, tendon, liner, embedment
- Spent fuel pool and transfer canal-boric acid attack on concrete in PWRs
- Alkali Aggregate Reaction
- Large structural sections for testing
NRC Perspective on Harvesting Experience and Lessons Learned
NRC Harvesting Experience
- RPV materials
- Shoreham, Midland
- Reactor vessel head CROM penetrations
- North Anna, Davis-Besse
- Pressurizer from St. Lucie
- Reactor internals from Zorita
- Joint harvesting and testing project with EPRI and international
- Neutron absorbers from Zion
- Harvesting coordinated with DOE and EPRI; Independent NRC testing
- Concrete from Zorita
- Cables from Zion and Crystal River
Previous Benefits of Harvesting
- Reduce unnecessary conservatism
- Flaw distributions and Master Curve information came from harvested materials to support PTS rule
- Understand in-service flaws
- Mockups for NDE qualification
- Leak rate methodology from st udying in-service flaws
- Identify and better understand safety issues
- High-energy arc fault tests on aluminum electrical components
Technical Lessons Learned
- Harvesting can provide highly representative aged materials for research May be only practical source of representative aged materiall s, particu larly if irradiation and temperature are important factors
- Achieving high fluence levels with representative irradiation conditions through other means is very challenging May be able to use limited harvested materials to validate larger accelerated aging data set
- Important to gain as much inform1ation as possible in advance before committing to specific harvesting project Ideally a bounding, yet realistic, material/environment Understand material information (CMTRs if available) and plant operating conditions
Logistical Lessons Learned
- Harvesting is an expensive, time-consuming effort
- Must balance cost with potential benefits carefully
- High technical relevance of materials is needed to ensure value
- Leveraging resources with other research organizations helps mitigate cost cha I le nges Can introduce challenges for testing when aligning research priorities and interests of multiple organizations May be needed, particularly for expensive testing of irradiated materials
- Transporting irradiated materials, particularly internationally, is cumbersome and time-consuming Avoiding extra transport, espedally between countries, is highly recommended
Note to requester:
Attachment is immediately following.
From: Tregoning, Robert Sent: Mon, 6 Mar 2017 16:33 :04 +0000 To: Frankl, Istvan Cc: Pu rtscher, Patrick; Hiser, Matthew
Subject:
Harvesting Workshop talking points.docx Attachments: Harvesting Workshop talking po ints.docx Steve:
Here are some talking points that Mike can use to introduce the workshop tomorrow. I think it's best if it comes through your branch so please forward it to Brian/John so that they can send it along to Mike. Let me know if you have any questions.
Cheers ,
Rob
Ex-Plant Materials Harvesting Workshop Motivation:
- There are increasing opportunities to harvest the safety-critical components from decommissioning plants, both domestic and international.
- The harvested materials are valuable because they have been exposed to actual in-service plant operating conditions (temperature, irradiation, coolant, etc.), unlike virgin materials tested under simulated conditions in the lab.
- Data from ex-plant materials should help address technical gaps identified for extended operation of nuclear power plants due to highly relevant aging conditions.
Purpose and Objective:
- For NRG staff and interested stakeholders to have greater awareness and knowledge of the benefits and challenges associated with ex-plant harvesting.
- Facilitate contacts and communication to enable specific cooperative ex-plant harvesting programs to be initiated.
Workshop Topics:
- Harvesting decision-making and prioritization o Technical data needs best addressed by harvesting o Technical information needed in advance of harvesting
- Sources of materials:
o Decommissio ning reactors o Operating reactors - replaced components o Previous harvesting programs - "boneyards" o Tracking available materials
- Harvesting process o Lessons learned from harvesting experience o Perspective of utility-owner and decommissioning contractor on harvesting o Communication and coordination between decommissioning and researchers Workshop Approach:
- Each session will consist of solicited presentations followed by lengthy discussion and Q&A period.
From: Hiser, Matthew Sent: Wed, 1 Mar 2017 20:35 :14 +0000 To: Hiser, Matthew Bee: 'wwchao@aec.gov.tw';'kna ito@guest researcher.ep ri. eom';Cunningham, Kelly A; 'Fifie ld, Leo S';'Henric.Lidberg@vattenfall.com'
Subject:
Harvesting Workshop Webinar This email provides the link to the webinar for remote participation in the harvesting workshop.
Please use the link be low to register and participate in the workshop next week:
https ://attendee .gotowebinar.com/register/6076202901971284226 Please let me know if you have any questions.
Thanks!
Matt Matthew Hiser Materials Engineer US Nuclear Regu latory Commission I Offi ce of uclear Regulatory Research Di vision of Engineering I Con-osion and Meta llurgy Branch Phone: 301-4 I 5-2454 I Office: TWFN 10D62 Matthew.Hiser@nrc.gov
From: Hiser, Matthew Sent: Wednesday, February 22, 2017 1:52 PM Note to requester: Attachment To: Cheruvenki, Ganesh; Poehler, Jeffrey is immediately following.
Cc: Rudland, David
Subject:
Harvesting Workshop Attachme nts: Ex-Plant Materials Harvesting Workshop.pptx Hi Jeff and Ganesh, I discussed this morning with Jeff the harvesting workshop that we are hosting on March 7-8 in a couple weeks. We have about two dozen external participants coming (EPRI, DOE, Japan, Europe, Canada, etc.) to discuss ex-p lant materials harvesting. I have attached the workshop introduction slides that cover meeting logistics, motivation, approach, expected outcome, and session expectations for your awareness.
To foster good discussion and due to space limitat ions, we are only able to accommodate about 8 or 9 NRC staff.
Additional staff can participate via webinar, which will be shared in the next couple days.
The way that breaks down, we can support 1 staff from NRR/DE in the metals area to participate in the room . In workshop planning discussions here with Rob Tregoning, we thought one of you two would probably be good to participate if possible.
We will be sending an email out in the next day or two to relevant branches in NRR and RES to publicize t he workshop and webinar info, but please let me know if you have any questions.
Thanks!
Matt
Ex-Plant Materials Harvesting Workshop March 7-8, 2017 USNRC HQ Rockville, MD, USA
Meeting Logistics
- Workshop will be held at NRC's Three White Flint North building Directly adjacent to the White Flint Metro stat ion Nearest hotel wit hin walking distance: Bethesda North Marriott Hot el &
Conference Center
- Workshop is a non-public meeting to encourage open discussion
- Presentations and meeting summary will be distributed among meeting participants only
- GoToMeeting webinar will be available to support additional attendees Webinar attendees will be primarily observers
- Limited opportun ities for webinar attendee participation in discussion if time allows Discussion wi U be recorded through GoToMeeting software to aid capturing discussion in meeting summary
Motivation
- With plants shutting down both in the U.S. and internationally, there are increasing opportunities to harvest components from decommissioning plants
- Past harvesting efforts generally more reactive as opportunities arose, rather than proactively planned
- Ex-plant materials may be valuable because they have been exposed to actual in-service plant operating conditions
- Can reduce the uncertainty associated with the applicability of the aging conditions
- Insights from research on harvested materials can address technical data needs identified for extended plant operation
- Lessons learned from past harvesting programs can help improve future harvesting efforts Challenges encountered in previous programs can be shared and mitigated or avoided in future programs
Approach
- Domestic and international researchers, industry, regulators, 1
and decom1m issioning companies discuss benefits and challenges with ex-plant harvesting
- Encourage sharing of lessons learned as well as areas of common interest
- Workshop consists of topical sessions with short presentations and significant time for open discussion
- Goal is to maximize engagement among meeting participants
- Scope includes any materials aging issue that could benefit from harvesting, including metals, cables, and concrete
Expected Outcome
- Participants become better informed and aware of the benefits and challenges associated with ex-plant harvesting
- Discussions help identify areas of common interest for harvesting to address technical data needs
- Presentations and discussions provide the starting point for a "database" of harvested materials and future harvesting o p po rt unities
- Contacts are made among research organizations to allow for further discussion of specific harvesting projects
Session Expectations
- Session 1 Motivation for Harvesting Perspective from panel participants on their organizations' interest in and motivation for harvesting Brief (5-10 minute) presentation from each panel member followed by general discussion
- Session 2 Technical Data Needs for Harvesting Presenters share high-priority data needs that may he best addressed by harvesting
- Where does harvesting hold particular value compared to other sources of technical data 15-20 minute presentations followed by open discussion of technical data needs for harvesting
Session Expectations
- Session 3 Sources of Mlaterials Information on previously harvested materials and future harvesting opportunities
- Materials located at research and vendor facilities
- Decommissioning plants that may allow for future harvesting Short 5-10 minute presentations followed by open discussion Starting point for potential database of previously harvested materials and future harvesting opportunities
- Session 4 Harvesting Experience: Lessons Learned and Practical Aspects Improving future efforts with lessons learned from past programs
- Pitfalls to avoid and strategies to improve likelihood of success Practical perspective from non-researchers on how harvesting interfaces with the decommissioning process International decommissioning and harvesting experience 20-30 minute presentations followed by open discussion
Session Expectations
- Session 5 Future Harvesting Program Planning
- Technical and logistical information needed when planning a specific harvesting program Perspective from panel participants on the workshop Next steps and actions from workshop Potentia l areas of common interest for future harvesting programs Brief (5-10 minute) presentation from each panel member followed by general discussion
From: Tregoning, Robert Sent: Thu, 3 Nov 2016 20:15 :08 +0000 To: Hiser, Matthew
Subject:
harvesting workshop Matt:
Let's gin up a meetin announcement as well in the near term that we can start to circulate (b)(6) intemc:iJionaJJy___ .- got an iGALL trip in December and he wants to circulate the announcement; I like to circulate it as well among my CSNI group.! !might also .have _ _(b)(6) some good international contacts for speakers so it would be good to tie him into the agenda development process during the next round of comments .
Cheers, Rob Robert Tregoning Technical Advisor for Materials US Nuclear Regulatory Comm ission Two White Flint North, M/S T-10 A36 11545 Rockvil le Pike Rockville, MD 20852-2738 ph: 301-415-2324 fax : 301-415-6671
From: Tregoning, Robert Sent: Mon, 12 Sep 2016 12:38:40 +0000 To: Hiser, Matthew
Subject:
Harvesting Workshop Matt:
I just heard from a German colleague at GRS (Juergen Sievers) and we discussed the workshop. We need to send him the initial workshop announcement. He can help us get the right decommissioning people from Germany to the workshop. So, it would be good if we could develop and circulate this preliminary announcement within the next week or two.
- Cheers, Rob Robert Tregoning Technical Advisor for Materials US Nuclear Regulatory Commission Two White Flint North, M/S T-10 A36 11545 Rockville Pike Rockville, MD 20852-2738 ph: 301-415-2324 fax : 301-415-6671
From: Hull, Amy Sent: Mon, 22 May 2017 16:03:31-0400 To: Hiser, Matthew Cc: Frankl, Istvan
Subject:
I gave you my markups today, nice work!: Synopsis on Harvesting for IAEA PLiM From: Hiser, Matthew Sent: Monday, May 22, 2017 2:47 PM To: Hull, Amy <Amy.Hull@nrc.gov>; Tregoning, Robert <Robert.Tregoning@nrc.gov>; Purtscher, Patrick
<Patrick.Purtscher@nrc.gov>; Moyer, Carol <Carol.Moyer@nrc.gov>
Cc: Frankl, Istvan <lstvan.Frankl@nrc.gov>
Subject:
Synopsis on Harvesting for IAEA PLiM I have attached a draft 2 page synopsis on harvesting for the IAEA PLiM conference . The plan will be for Carol to give the presentation at the conference, but we need to submit the abstract by this week if possible (deadline was last Friday).
If possible, please take a look and provide comments or edits to the abstract by Wednesday to support submission this week.
Thanks!
Matt Matthew Hiser Materials Engineer US Nuclear Regulatory Commission I Office of uclear Regulatory Research Di vision of Engineering I Corrosion and Metallurgy Branch Phone: 30 1-4 I 5-2454 I Office: TWFN I 0D62 Matthew.Hiser@nrc.gov
Note to requester: The attachments are all immediately following.
From: Hiser, Matthew Sent: Wed, 22 Feb 2017 15:07 :50 +0000 To: Neve, Carol;Kirk, Mark;Oberson, Greg;Focht, Eri c
Subject:
Input on Harvesting Slides Attachments: Sources of Materials.pptx, NRC Perspective on Harvesting Experience and Lessons Learned.pptx, NRC Techn ica l Data Needs for Harvesting.pptx, Ex-Plant Materials Harvesting Workshop.pptx Hi Carol, Mark, Greg , and Eric, We are hosting a workshop with a number of external participants in two weeks to discuss ex-plant materials harvesting. I know I've discussed this with at least a couple of you . I have attached the workshop introduction slides that cover meeting logistics, motivation, approach, expected outcome , and session expectations for your awareness.
I have also attached PP slides for NRC presentations in sessions 2, 3, and 4. These slides have been developed primarily with input from myself, Rob Tregoning and Pat Purtscher. The intent of these slides is to be a discussion starter and provide NRC's perspective on the session topics related to harvesting.
Some of the topics covered in these slides include RPV, NDE, PWSCC , and NAM , so I'd like to share them with each of you for a quick review. Please let me know if you have any questions and provide any comments or feedback at you r earliest convenience.
Thanks!
Matt Matthew Hiser Materials Engineer US Nuclear Regu latory Comm iss ion I Office of uclear Regulatory Research Division of Engineering I Con-osion and Metallurgy Branch Phone: 301-415-2454 I Office: TWFN 10D62 Matthew.Hiser@nrc.gov
Ex-Plant Materials Harvesting Workshop March 7-8, 2017 USNRC HQ Rockville, MD, USA
Meeting Logistics
- Workshop will be held at NRC's Three White Flint North building Directly adjacent to the White Flint Metro stat ion Nearest hotel wit hin walking distance: Bethesda North Marriott Hot el &
Conference Center
- Workshop is a non-public meeting to encourage open discussion
- Presentations and meeting summary will be distributed among meeting participants only
- GoToMeeting webinar will be available to support additional attendees Webinar attendees will be primarily observers
- Limited opportun ities for webinar attendee participation in discussion if time allows Discussion wi U be recorded through GoToMeeting software to aid capturing discussion in meeting summary
Motivation
- With plants shutting down both in the U.S. and internationally, there are increasing opportunities to harvest components from decommissioning plants
- Past harvesting efforts generally more reactive as opportunities arose, rather than proactively planned
- Ex-plant materials may be valuable because they have been exposed to actual in-service plant operating conditions
- Can reduce the uncertainty associated with the applicability of the aging conditions
- Insights from research on harvested materials can address technical data needs identified for extended plant operation
- Lessons learned from past harvesting programs can help improve future harvesting efforts Challenges encountered in previous programs can be shared and mitigated or avoided in future programs
Approach
- Domestic and international researchers, industry, regulators, 1
and decom1m issioning companies discuss benefits and challenges with ex-plant harvesting
- Encourage sharing of lessons learned as well as areas of common interest
- Workshop consists of topical sessions with short presentations and significant time for open discussion
- Goal is to maximize engagement among meeting participants
- Scope includes any materials aging issue that could benefit from harvesting, including metals, cables, and concrete
Expected Outcome
- Participants become better informed and aware of the benefits and challenges associated with ex-plant harvesting
- Discussions help identify areas of common interest for harvesting to address technical data needs
- Presentations and discussions provide the starting point for a "database" of harvested materials and future harvesting o p po rt unities
- Contacts are made among research organizations to allow for further discussion of specific harvesting projects
Session Expectations
- Session 1 Motivation for Harvesting Perspective from panel participants on their organizations' interest in and motivation for harvesting Brief (5-10 minute) presentation from each panel member followed by general discussion
- Session 2 Technical Data Needs for Harvesting Presenters share high-priority data needs that may he best addressed by harvesting
- Where does harvesting hold particular value compared to other sources of technical data 15-20 minute presentations followed by open discussion of technical data needs for harvesting
Session Expectations
- Session 3 Sources of Mlaterials Information on previously harvested materials and future harvesting opportunities
- Materials located at research and vendor facilities
- Decommissioning plants that may allow for future harvesting Short 5-10 minute presentations followed by open discussion Starting point for potential database of previously harvested materials and future harvesting opportunities
- Session 4 Harvesting Experience: Lessons Learned and Practical Aspects Improving future efforts with lessons learned from past programs
- Pitfalls to avoid and strategies to improve likelihood of success Practical perspective from non-researchers on how harvesting interfaces with the decommissioning process International decommissioning and harvesting experience 20-30 minute presentations followed by open discussion
Session Expectations
- Session 5 Future Harvesting Program Planning
- Technical and logistical information needed when planning a specific harvesting program Perspective from panel participants on the workshop Next steps and actions from workshop Potentia l areas of common interest for future harvesting programs Brief (5-10 minute) presentation from each panel member followed by general discussion
NRC Perspective on Harvesting Experience and Lessons Learned
NRC Harvesting Experience
- RPV materials
- Shoreham, Midland
- Reactor vessel head CROM penetrations
- North Anna, Davis-Besse
- Pressurizer from St. Lucie
- Reactor internals from Zorita
- Joint harvesting and testing project with EPRI and international
- Neutron absorbers from Zion
- Harvesting coordinated with DOE and EPRI; Independent NRC testing
- Concrete from Zorita
- Cables from Zion and Crystal River
Previous Benefits of Harvesting
- Reduce unnecessary conservatism
- Flaw distributions and Master Curve information came from harvested materials to support PTS rule
- Understand in-service flaws
- Mockups for NDE qualification
- Leak rate methodology from studying in-service flaws
Technical Lessons Learned
- Harvesting can provide highly representative aged materials for research May be only practical source of representative aged materiall s, particu larly if irradiation and temperature are important factors
- Achieving high fluence levels with representative irradiation conditions through other means is very challenging May be able to use limited harvested materials to validate larger accelerated aging data set
- Important to gain as much inform1ation as possible in advance before committing to specific harvesting project Ideally a bounding, yet broadly representative, material/environment Understand material information (CMTRs if available) and plant operating conditions
Logistical Lessons Learned
- Harvesting is an expensive, time-consuming effort
- Must balance cost with potential benefits carefully
- High technical relevance of materials is needed to ensure value
- Leveraging resources with other research organizations helps mitigate cost cha I le nges Can introduce challenges for testing when aligning research priorities and interests of multiple organizations May be needed, particularly for expensive testing of irradiated materials
- Transporting irradiated materials, particularly internationally, is cumbersome and time-consuming Avoiding extra transport, espedally between countries, is highly recommended
NRC High-Priority Data Needs for Harvesting
Metals
- Selected areas of interest for harvested materials:
- High f l uence reactor internals
- >50 dpa 304 SS from high core outlet temp plant
- Bounding temperature and high fluence for void swelling
- Thermally aged unirradiated C.ASS
- >30 years at "'320°C; Validate accelerated aging data
- Moderate fluence (1-2 dpa) CASS
- Bolster technica l basis for embrittlement in this fluence range
Metals
- High fluence vessel with relatively high levels of minor alloying elements (Mn, P, etc.)
- Through thickness section
- Measure fluence, toughness, and chemistry as a function of depth
- Val idate fluence calculations
- C.omponents with known flaws Example : weld overlays over known flaws Could be used for N DE evaluations or to assess effectiveness of mitigation techniques
- C.omponents with limiting fatigue life
- Confirm fatigue calculations are accurate by inspecting for flaws
Electrica I
- Cables
- Power cables energized and energized in norma I operation
- Cables from in containment applications
- Electrical components lE MOVs from harsh and mild environments lE Air operated valves 4160 lE breakers lE Molded case breakers 480V, 250V DC, 125 VDC, lE Relays from mild environment GE - HFA, Agastat timing relays, any from Westinghouse, Potter Brumfield, Stuthers Dunn etc.,
- Other Electrical penetrations Batteries
Concrete
- High fluence irradiated concrete?
- ASR?
- Large sections for structural testing?
Sources of Materials Metals
- Examples of harvested materials used in NRC research programs:
Boral from Zion SS plate and welds from Zorita
- 30455 ranging from <1 to 50 dpa
- Alloy 600 J-groove weld from Davis-Besse
- Alloy 600 CRD nozzle from North Anna
- Shoreham, Midland
Electrical Concrete Recently Shutdown U.S. Plants Size Years in Shutdown Plant Design Notes (MWt) Operation Date Kewaunee W 2-loop 1772 39 2013 SONGS 2/3 CE 2-loop 3438 31/30 2013 Crysta I River 3 B&W 2609 36 2013 Vermont Yankee BWR-4/Mark-1 1912 42 2015 Fort Calhoun CE 2-loop 1500 43 2016
Planned Shutdown U.S. Plants Size Years in Planned Plant Design {MWt) Notes Operation Shutdown Palisades CE 2565 47 2018 Pilgrim BWR-3/Mark-1 2028 47 2019 Oyster Creek BWR-2/Mark-1 1930 so 2019 Indian Point 2/3 W 4-loop 3216 48/46 2021 Diablo Canyon 1/2 W 4-loop 3411 40 2024-5
Additional Information from Plants
- Point of Contact
- Material information
- Fabrication records, CMTRs
- Operating history
- Tem1perature and fluence for components of interest
- Inspection records
- Components with known flaws