ML20054D419
| ML20054D419 | |
| Person / Time | |
|---|---|
| Site: | Mcguire, Sequoyah, McGuire, 05000000 |
| Issue date: | 05/07/1981 |
| From: | Bernard Grenier Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML19247E371 | List: |
| References | |
| CON-FIN-A-1306-1, FOIA-82-96 NUDOCS 8204220695 | |
| Download: ML20054D419 (18) | |
Text
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1 NRC FORM 173 u.s. r ucLE AR REGutAroRv couuissioN oRoE R NUMBE R 12 78) 20 4 1-239
^
-STANDARD ORDER FOR DOE WORK May 7, 1981 ISSUED TO: (DOE Office)
ISSUE D SY: (NRC O'fice)
ACCOUNTING CITATION
^""'"'^"5'""
Albuquerque Operation Office Office of Nuclear Reactor 31X0200.201 Regulation /DE 94R NUMBER 20-19-04-14 PERFORMING ORGANIZATION AND LOCATION Sandia National Laboratory
""ygt Albuquerque, New Mexico WOR K PERIOD. THIS ORDE R FIN TITLE fixed D ESTIMATED D Development of Methodolohy for Evaluating Equipment Surviv-Burning Hydrogen 5/13/81 1I2/31/81
,RCu:
ability in Environment o OBLIGATION AVAILABILITY PROVIDED BY:
A. THIS ORDER 5100,000 IOloYR THUSh"E "AePEOeRiUlYSvTs*0LF AN E FIRS FOUR I $ FT E S1,048,000 "B&R NUMBER" CITED ABOVE.
C. TOTAL ORDERS TO DATE (TOTAL A & B) g1,148,000 D. AMOUNT INCLUDED IN "C" APPLICABLE TO THE " FIN NUMBER" CITED IN THIS ORDER.
5 100,000 FINANCIAL FLEXIBILITY:
$ FUNDS WILL NOT BE REPROGRAMMED BETWEEN FINS. LINE D CONSTITUTES A LIMITATION ON O8 LIGATIONS AUTHORIZED.
O FUNDS MAY BE REPROGRAMMED NOTTO EXCEED 210% OF FIN LEVEL UP TO 550K. LINE C CONSTITUTES A LIMITATION ON OBLIGATIONS AUTHORIZED.
STANDARD TERMS AND CONDITIONS PROVIDED DOE ARE CONSIDERED PART OF THIS ORDER UNLESS OTHERWISE NOTED.
ATTACHMENTS:
THE FOLLOWING xTTACHMENTS ARE HEREBY SECURITY:
MAGE A PART OF THIS ORDER:
dWORK ON THIS ORDER IS NOT CLASSIFIED.
g.u STATEMENT OF WORK O WORK ON THIS ORDER INVOLVES CLAS$1FIED O ADDITIONALTERMS AND CONDITIONS INFORMATION. NRC FORM 187 IS ATTACHED.
O OTHER REMARKS:
This order provides (incremental) funding for initiation of work on the attached 50W and requests that a proposal be submitted within 30 days.
The proposal should contain the tasks and subtasks along with the milestones for completing the projects.
After signature, please send to the NRC Office of the Controller, ATTN: D. Dandois and provide a copy to the Office of Nuclear Reactor Regulation, ATTN: D. Corley.
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virtE virte Technical Assistance Program Manager DATE NRCFORM 173(2 78) 8204220695 820:04 i
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. ENCLOSURE 2 l-l I
Title:
Development of Methodology for Evaluating Equipment Survivability in - '
Environment of Burning liydrogen for Sequoyah and McGuire FIN:
A1306 B&R No.: 20,19-04-14 i
Technical Monitor: K.I.Parczewski(FTS492-94b8) l Cognizant NRR Manager:
V. Benaroya (FTS 492-8057)
Background
The THI-2 experience has indicated that it is possible to postulate a credible accident which would result in the production's much larger amounts of hydrogen than predicted in the design basis accident. This hydrogen, when released to the' containment mixes with oxygen and can form flamable or even explosive sixtures. Different schemes have been proposed to preclude the hiolent reactions between hydrogen and oxygen which could endanger the integrity of the containment.
One of them is to maintain a low concentration of hydrogen by intentionally igniting it, by means of a specially installed igniter system, before it reaches high concentrations. Although this solution may be satisfactory from the containment integrity point of hiew, the thermal enhironment created inside the containment
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may cause degradation of some of the equipment which is needed for safe shutdown of the plant. Presently, there is only a hery limited amount of information on survivability of this equipment in the enhironment of burning hydrogen. Most of the existing information comes from tests performed in the enclosures which were much smaller than typical compartments in the reactor containment. Con-9 sequently, the resulting energy transfer between the containment environment and the equipment was different. To gain meaningful quantitatihe information on the condition needed for equipment surhihability, carefully planned analytical and
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experimen'tal investigations should be performed.
Based on the results of these, investigations, a methodology for predicting surhihability of the vital equipment l
in hydrogen burn environment could be developed. This would provide NRC with the basis for judging acceptability of the equipment which would have to survive hydrogen combustion, recommend corrective measures needed to assure that any combustion damage does not prevent the performance of needed safety functions and would provide the basis for any criteria or standards required to assure that loss of safety functions would not occur.
The proposed program consists of two basic parts:
analytical and experimental.
Although they will be performed as two distinct efforts, they are closely related and coordination between them will be maintained at all times.'
The major portion of the program should be completed by the end of January 1983.
At this date the plants are required to submit to the NRC their proposal for equipment qualification and the staff should be in position to evaluate them.
Objectives The ultimate goal of the program is to develop the methods which would enable the staff to predict the effects of the thermal enhironment existing in the containment during hydrogen burn on behavior of the equipment whose function is needed for safe shutdown of nuclear plants. This goal will be achieved by obtaining the relevant information from analytical and experimental investigations and subsequently using this information in formulating an appropriate methodology j
for ehaluation of survihability of the safety related equipment. The'investi-gations will cover two areas:
(1) identification of the parameters characterizing thermal environment of burning hydrogen with respect to its effect on functionability of the safety related equipment.
(2) study of responses of different types of the safety related equipment to the thermal condition in the hydrogen burn environment.
Both these areas will be investigated analytically and experimentally. 'Since the experimental study will be performed in afi enclosure of a size considerably smaller than a full size reactor containment, analytical models will be used to scale up the results and obtain the parameters chara'cterizing the full s,cale containment : This part of the program is of a great significance since in burning hydrogen, a major part of heat is transferred by radiation mechanism.
The size of the cloud of resulting hot gas plays an important rhle in prohiding transfer of heat to the equipment. After the hydrogen burn environment is characterized, selected pieces of equipment will be tested under simulated condition and their response studied. The experimental results will be supple-mented by and compared with analytical predictions. Based on both experimental and analytical results, a procedure will be developed for evaluating the surviv-ability of the equipment and recomending modification or other corrective action, if required.
The flow chart for the entire equipment survivability program is presented in the attached figure. This flow chart defines different operations in the program and indicates the relationship between them., However, the descriptions of
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-4r Work Recuirements
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I The projected work will consist of the following tasks:
(1)
DeYelopment and herification of analytical methods for characterizing thermal enhiron'mant during hydrogen burn with' respect to its effect on behavior of the safety related equipment located in the containment.
(Operations: 1, 2 and"9 in the flo' chart) w (2)
Dehelopment and verification of analytical methods for predicting response of the safety related equipment in hydrogen burn environment.
(Operations: 3 and 4 in the flow chart)
'(3), Using the verified analytical methods, predict behavior of the safety related equipment during hydrogen burn in full scale containments and
- compare it with the experimentally obtained results.
(Operations: 5 and 10 in the flow chart) -
Task 1,..DeYelcoment an'd verification of analytical methods for characterizing __
thermal environment Estimated Level, of Effort: 0.8 man-year
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Comou.ter Costs: 520,000 Projected Ca:pletion Date: 8/31/81 Perform an analytical study of the phenomena taking place during hydrogen burn in the containment. The purpose of this study is to obtain the infor-mation on the nature of hydrogen-oxygen reaction in,cluding the conditions when a self sustaining reaction can be maintained and propagated within the containment. Of principal interest are the radiation characteristics of the' cloud of burning gas, its site and the length of the temperature tr.ansient after
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each 5' urn. These two quantities will provide the nature of.the source to which
? equipment will be exposed and estimates of the temperatures and pressures
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which it cust survive. The analytical usethods developed in this taks will be
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5 verified by the results obtained from the experimental study in VGES 16 foot test chamber carried out as a separate part of the program, and by the other ahailabledata,scmec7themincludingeffectofsteam. The analyses should be performed for different hydrogen concentrations within the containment. These calculations should be performed for initial conditions which include different hydrogen concentrations and distribution within the containment and different ignition sources. Since it is not knwon which of the initial conditions will provide the worst environment from the point of view of equipment survivability, the parameters defining the initial conditions in the scoping calculations should cover sufficiently wide range so that it is certain that the most limited condition is included. However, the concentration of hydrogen considered should be in the range of the concentrations which were used in the investigation of the effect of hydrogen burn on containment integrity.
Different types of hydrogen deflagration reactions, generating variety of temper-ature and pressure time histories, should be included in the investigation.
In the tests carried out in the VGES 16 foot test facility, a few selected pieces of equipment, identical to those which will be subsequently tested in the radiation facility, will be exposed to the test conditions. The data provided by studying behavior of this equipment should provide additional verification of the analytical predictive methods developed in Task 2..
Task 2 Develcoment and Yerification of analytical methods for predicting l
behavior of the safety related eouioment Estimated Level of Effort:
1.3 man-year Computer Costs:
530,000 Projected Completion Date: '10/31/81 1
Develcp a method which would allow the thermal response of the equipment located in the containment during hydrogen burn to be predicted analytically without N
. requiring equipment qualification tests for every environment. This method will be used in the future to supplenent the information gained from the survivability tests and in some instances may actually replace them. In i
crder to.dehelop this procedure, appropriate heat transfer computer codes have to be procured and then suitably adapted. These modified codes will then be verified using the results from the surhivability tests performed on the given equipment in the radiation test facility. These tests will be performed as a part of the experimental portion of the program and will include parametric study of environmental conditions including.the conditions studied in the 14 foot test facility.
Task 3 Prediction of behavior of the safety related ecuioment durino hydrocen burn.
Estimated Level of Effort: 0.4 man-year Projected Completion Date:
12/31/81 Compare and evaluate the results on equipment behavior in hydrogen burn environ-ment obtained in analytical and experimental parts of the program. Based on these results, develop a procedure for predicting and evaluating survivability of the equipment exposed to hydrogen burn environment following LOCA, in a full scale containment. Reccomend any modifications or corrective actions, if required.
Report the findings to NRC.
4 a.'
. Level of Effort and Period of Performance This effort is estimated at 2.5 man-year over a 8 month period.
1 Reporting Requirement The contractor shall prepare and deliver the reports delineated below:
1.
Upon completion of each task the contractor will provide the cognizant NRC Branch Chief with a letter report which includes, as appropriate, safety evaluation report input, equipment selection, and supplemental safety report input.
2.
A monthly business letter report shall be submitted by the 15th of the month to the cognizant NRR manager V. Benaraya with copies to R. H.
Vollmer, Attn: Chet Poslusny, W. Johnston and B. Grenier. These reports will contain:
(a) A listing of any efforts completed during the period; milestones reached, or if missed, an explanation prdvided; (b) The amount of funds expended for manpower and com'puter services during the period and cumulative to date for each task; (c) Any problems or delays encountered or anticipated; (d) A summary of the progress to date; (e) Plans for the next reporting period.
Note: Cost information for each plant must be gathered by the NRC as a legal requirement to properly assess licensing feed to utilities.
Meetings and Travel One one day meeting with the principal investigator in Bethesda, Maryland should be planned and budgeted; the date will be mutually determined at a later time.
NRC Furnished Materials 1
NRC will provide Safety Evaluation Reports for McGuire and Sequoyah as required.
PROPOSAL CCNTENT The minimum items required in all proposals are:
1.
Performing organization's name and location.
2.
FIN Title, FIN Number and B&R Nember (NRC's) (as on statement of work).
1 3.
Performing organization's key personnel, program manager, or principal investigator, their resumes and FTS phone number.
4.
Background (definition of the parblem including the objective (s) to be attained).
5.
Worktobeperformed(Prohideaconcisedescriptionoftasksto be performed and expected results for the period of performance.
Note technical data requirements, potential problems, and other technical information needed to fully explain the effort. Highlight changes from prior authorized SCW';, if any, identify chan,ges in performanca, schedule, or costs).
5.
Identify major subcontracts, including consultants.
7.
Costs estimated to be incurred by 00E contractors, subcontractors, and consultants. List by fiscal year to comoletion.
a.
Manyears of Technical Support (MTS)
~b.
Costs:
(1) Direct Salaries (Labor) for MTS (2) MaterialandSerEices(excludingAOP)
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(3) Total ADP Support (4) Subcontracts (5) Capital Equipment (6) Direct TraYe1 Expense (Foreign trahel must be shown separately)
(7) GeneralandAdministratiheExpense(Includeindirectlaborc'est) c.
Total Estimated Cost 8.
Forecasts:
a.
Milestone Chart for accomplishing the work.
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Planned monthly rate of costs by fiscal year. This may be provided with the first report of an authorized program if not known at time of proposal submittal. At the beginning of ea:h subsequent year, reports should ine'lude the planned monthly rate of costs for the ensuin'g year.
9.
Conflict of Interest:
In order to assist the Commission in its evaluation, the DOE Contracting
- Officer shall describe any significant contractual and organizational relationships of the DOE, its contractor, their employees, or expected subcontractors or consultants on this proposal, with industries regulatac by the NRC (e.g., utilities, etc.) and suppliers thereof (e.g., architect engineers and reactor manufacturers, etc.) that might give rise to an apparent or actual conflict of interest.
- 10. Reporting Requirements (as on statement of work). -
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PROJECT DESCRIPTION
SUMMARY
_0f fice : Nuclear Regulatory Research Project
Title:
Equipment Survival Experiments Type of Contract: DOE Contractor: Sandia FIN No: 1270-1 FYBudget(K):
FY 81 FY 82 FY 83 Operating:
550 Follow-On:
250 500 Scope of Work:
The objective of this work is to provide data on the survivability of various nuclear power plant components including certain safety related equipment from the severe conditions of a hydrogen burn. This program is directly coupled with an analytical effort (FIN No. A1306-1) sponsored by NRR to develop models to predict the response of various equipment to severe temperatures and pres-sures which could occur during a hydrogen defragration or detonation. The scope includes the following:
(1) characterization of the pressure and temper-ature conditions resulting from hydrogen combustion events. (2) exposure of selected components to these hydrogen combustion events. (3) exposure of com-ponents in a Radiant Heat Facility to thennal conditions representative of hydrogen combustions, (4) interpretation of the results of component exposures, (5) provisions to permit the procurement of components for exposure. The first J
r phase of the program will concentrate on exposure of components under defrag-ration conditions.
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Benefit:
The TMI-2 experience has indicated a need to consider hydrogen release as a consequence of degraded core accidents. Combustion of accident-produced hydrogen by either deliberate or unanticipated ignition may occur in these accidents.
Survival of certain safety related components will be necessary to assure that plant operators have the ability to control post-accident conditions and bring the plant to a safe status. Presently, there is only limited information on the survivability of equipment in a burning hydrogen environment. Most of the data available would have to be scaled-up to reactor scale with no technical basis. This research will provide valuable information on prototypic equipment 1
which can then be used to develop analytical methods to assess the response of
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equipment to severe environments occuring frea hydrogen burns / detonations.
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' I User Need:
This research is needed to provide the NRC a technical basis for licensing decisions and regulations with respect to equipment qualification.
This program l
has been formulated through discussions with the Equipment Qualification Branch and the Chemical Engineering Branch of NRR and as noted earlier is directly coupled with an analytical program (FIN #A1306-1) sponsored by CEB. This program was formally endorsed by NRR on June 29, 1981.
Current Related NRC Projects:
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NRC Fin # A1246
" Hydrogen Behavior and Control Program".
NRC FIN # A1306-1
" Development of Methodology for Evaluating Equipment Survivability in Environment of Burning Hydrogen"
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NRC FIN # B8057
" Hydrogen Combustion Mitigative and Preventive Schemes" Justification for Source Selection:
See att' ached fonn 367.
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KRC Fom 367 U.S. Nucicar Regulatory Commission (3-80)
MRCit 1401 INTERAGENCY SOURCE SELECTION JUSTIFICATION N
1.
FIN No.
2.
Title 3.
Selected Source A1270 Equipment Survivability Expe'riments Sandia National Laboratory
- 4.
Office 5.
Division Nuclear Regulatory Research Division of Accident Evaluatio_n 6
Project Manager's Name Dr. John T. Larkins Date Signature 7/15/81 7.- Basis for Selection (Discuss the factor (s) used to justify the basis for selection see Manual Bulletin 1401-
)
A large number of equipment survivab.ility tests will be carried out in facilities fabricated / modified for the Hydrogen Behavior and Control Program (FIN # A1246) which represents a significant cost saving. Also a ' radiant heat facility is currently available at Sandia which can be modified to handle most large sized nuclear plant components. Besides being able to utilize facilities being supported on other NRC research programs, these tests will be conducted by scientists already experienced in performing and analyzing the types of eiperiments required for this progr:am.
The principal investigator has worked on similar NRC programs (i.e., Assessment of Equip-inent Qualification for the Office of, Inspection and Enforcement) with good results.
Sandia is set up to handle this program in an expeditious and cost effective manner and individuals working on this program will have the benefit of working with a cadre of experts on hydrogen defragration and detonation working in the NRC's Hydrogen Behavior and Control Program.
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Approved
. Date 9.
Approved (Of fice Director or designee)
Date Signature O
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1 FY 1981 PROGRAM BRIEF SEVERE ACCIDENT ASSESSMENT BRANCH PROGRAM:
DAE t
TITLE: EQUIPMENT SURVIVAL EXPERIMENTS FIN NO: A-1270-1 0
CONTRACTOR: SANDIA g
SITE: ALBUQUERQUE STATE: NEW MEXICO NRC TECHNICAL MONITOR:
J. T. LARKINS PRINCIPAL INVESTIGATOR:
L. CROPP OBJECTIVE: EXPERIMENTAL INVESTIGATION OF RESPONSE OF COMPONENTS TO HYDROGEN BURN CONDITIONS.
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BUDGET ACTIVITY: 60191304 f
FY 1981 SCOPE:
FY 1981 OBLIGATION:
$550K (THIS FIN COVERS RES-FUNDED EXPERIMENTAL WORK TO BE CARRIED OUT IN CONJUNCTION WITH NRR-FUNDED ANALYTICAL WORK IN FIN # A1306-1.)
1.
PERFORM A SERIES OF EXPERIMENTS WITH THE VARIABLE GE0 METRY EXPERIMENTAL SYSTEM (VGES) TO CHARACTERIZE THE PRESSURE AND TEMPERATURE TRANSIENTS RESULTING FROM A HYDROGEN COMBUSTION IN A CONFINED VOLUME AND TO EXPOSE
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SELECTED SAFETY COMPONENTS TO THIS ENVIRONMENT. THE COMBUSTION TRANSIENT CONDITIONS WILL BE REPORTED IN A FORM THAT CAN BE USED IN THE VERIFICATION OF ANALYTICAL SIMULATION MODELS WHICH PREDICT CONDITIONS OF THE COMBUSTION ENVIRONMENT. SIMILARLY, THE RESULTING HEAT LOADS ON, AND THE MEASURED HEATUP 0F, THE COMPONENTS WILL BE REPORTED IN A MANNER APPROPRIATE TO VERIFY ANALYTICAL TOOLS. THE TESTS WILL BE PERFORMED OVER A RANGE OF HYDROGEN-AIR CONCENTRATION RATIOS ADEQUATE TO DEFINE TRANSIENTS WHICH MIGHT OCCUR IN DOMINANT ACCIDENT SCENARIOS IN PWR AND BWR CONTAINMENTS AND WILL, i
IF POSSIBLE, INCLUDE EXPOSURE OF SOME COMPONENTS TO REPEATED BURNS AS i
EXPECTED IN A CONTROLLED HYDROGEN BURN INITIATED BY AN IGNITER SYSTEM.
TESTS CONDUCTED DURING THIS PHASE OF THE EXPERIMENTS WILL BE LIMITED TO A MAXIMUM HYDR 0 GEN CONCENTRATION OF 18% IN AIR - THE GENERALLY ACCEPTED DETONABLE LIMIT FOR HYDR 0 GEN / AIR MIXTURES.
2.
A LIST OF COMPONENTS TO BE EXPOSED AND SPECIFICATIONS FOR THE PRETEST AND POST-TEST EXAMINATION AND FUNCTIONAL TEST OF EXPOSED COMPONENTS AND THE PROPOSED TEST CONDITIONS WILL BE SUBMITIED BY SANDIA FOR RES CONCURRENCE PRIOR TO THEIR TEST EXPOSURE. AFTER EACH TEST SERIES, A LETTER REPORT INTERPRETING THE COMPONENT PERFORMANCE IN TERMS OF SURVIVING THE TEST CONDITIONS OR THE FAILURE MODE AND THE RESULTS OF THE PRETEST AND POST-TEST EXAMINATION AND FUNCTIONAL TEST WILL BE PROVIDED. SOME COMPONENTS
+t MAY BE EXPOSED IN A FORM TO TEST MEANS OF PROTECTING THEM FROM THE COMBUS-TION TRANSIENTS.
INTERPRETATION AND REPORTING OF RESULTS IN TERMS OF I
EQUIPMENT SURVIVABILITY IN CONTAINMENT BURN ENVIRONMENTS WILL BE PERFORMED j
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. 3.
DEVELOP A TEST MATRIX AND RATIONALE FOR RES CONCURRENCE FOR A SERIES OF 4
L'PERIMENTS IN THE RADIANT HEAT. FACILITY TO DETERMINE IF THESE TESTS CAN SIMULATE THE THERMAL ENVIRONMENT OF HYDROGEN COMBINATION IN ACCIDENT SCENARIOS AND TO EXPOSE SELECTED SAFETY COMPONENTS TO THIS ENVIRONMENT.
SPECIFICATIONS FOR PRETEST AND POST-TEST EXAMINATION AND FUNCTIONAL TEST 0F COMP 0NENTS WILL ALSO BE PROVIDED FOR RES CONCURRENCE PRIOR TO EXPOSURE.
g SOME COMPONENTS SELECTED FOR EXPOSURE IN THE RADIANT HEAT FACILITY WILL BE THE SAME AS THOSE EXPOSED TO THE VGES BURN CONDITIONS TO EVALUATE THE VALIDITY OF RESULTS FROM THE RADIANT HEAT FACILITY. A LETTER REPORT ON THESE EXAMINATIONS WILL BE PROVIDED FOR EACH TEST SERIES.
i 4.
PROVIDE COMPONENTS FOR TEST AND ASSOCIATED FUNCTIONAL TEST EQUIPMENT (POWER SUPPLIES, ETC.). TEST COMPONENTS WILL BE TYPICAL OF THOSE QUALI-FIED FOR USE IN UTILITY NUCLEAR POWER PLANT CONTAINMENTS.
5.
PREPARE PLANS FOR FY 82 EXPERIMENTS TO EXPOSE COMPONENTS TO ANY ADDITIONAL TESTS NEEDED IN THE AB0VE FACILITIES AND TO COMBINED EFFECTS OF COMBUSTION IN A H2/ AIR AND STEAM ENVIRONMENT IN THE FULLY INSTRUMENTED TEST SITE (FITS)
FACILITY.
6.
PROVIDE TECHNICAL ASSISTANCE ON THE EXPERIMENTAL WORK AS REQUIRED.
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FY 1982 PROGRAM BRIEF SEYL'E ACCIDENT ASSESSMENT BRANCH,
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, PROGRAM: --DAE
. TITLE: EQUIPMENT SURVIVAL EXPERIMENTS FIN. NO.:
A-1270 '
CONTRACTOR: SANDIA I
SITE:
ALBUQUERQUE-j ETATE:
NEW MEXICO MRC TECHNICAL MONITOR:
J. T. LARKINS PRINCIPAL INVESTIGATOR:
L. CROPP OBJECTIVE:~ EXPERIMENTAL INVESTIGATION OF RESPONSE OF COMPONENTS TO HYDR 0 GEN
- BURN CONDITIONS BUDGET ACTIVITY: 6019130 2 FY.1982 SCOPE:.
FY 1982 DBLIGATION $250K TH IN S-FUNDED EXPERIMENTAL WORK TO BE CARRIED OUT IN CONJUNCTION WITH NRR-FUNDED ANALYTICAL WORK IN FIN #A0429-1.),
1.
PERFORM TWO SERIES OF EXPERIMENTS WITH THE ARIABLE GEOMETRY EXPERIMENTAL SYSTEM (VGES) TO CHARACTERIZE THE PRESSURE AND TEMPERATURE TRANSIENTS l
RESULTING FROM A HYDROGEN COMBUSTION IN A CONFINED VOLUME AND TO EXPOSE j
SELECTED SAFETY COMPONENTS TO THIS ENVIRONMENT. THE COMBUSTION TRANSIENT l
CONDITIONS WILL BE REPORTED IN A FORM THAT CAN BE USED IN THE VERIFICATION OF ANALYTICAL SIMULATION HDDELS WHICH PREDICT CONDITIONS OF THE COMBUSTION ENVIRONMENT. SIMILARLY, THE RESULTING HEAT LOADS ON, AND THE MEASURED HEATUP I
OF, THE COMPONENTS WILL BE REPORTED IN A MANNER APPROPRIATE TO VERIFY ANALYTICAL TOOLS. THE TESTS WILL BE PERFORMED DVER A RANGE OF HYDROGEN-AIR CONCENTRATION 1
RATIOS ADEQUATE TO DEFINE TRANSIENTS WHICH MIGHT OCCUR IN DOMINANT ACCIDENT SCENARIOS IN PWR AND BWR CONTAINMENTS AND WILL, IF POSSIBLE INCLUDE EXPOSURE 5-nF SOME_fflMPONFNTS_TO REPEATID BURNS AS EXPECTED IN A CONTROLLED HYDROGEN BU INITIATED BY AN IGNITER SYSTEM. CARBON DIOXIDE CAN BE USED AS A STEAM SIMULANT
__. WHERE APPROPRIATE.. TESTS CONDUCTED DURING THIS PHASE OF THE EXPERIMENTS WILL LIMITED TO A MAXIMUM HYDR 0 GEN CONCENTRATION OF 18% IN AIR - THE GENERALL ACCE DETONABLE. LIMIT FOR HYDROGEN / AIR MIXTURES.
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2.
A DETAli.ED bSI (MANUFACTURER, MODEL NUM3ER, ETC.),0F COMPONENTS TO BE EXPOSED
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AND SPECIFICATIONS FOR THE PRETEST AND POST-TEST EXAMINATION AND FUNCTIONAL TEST OF EXPOSED COMPONENTS AND THE PROPOSED TEST CONDITIONS WILL BE SUBMITTED BY SANDIA FOR RES CONCURRENCE PRIOR TO THEIR TEST EXPOSURE. AFTER EACH TEST e
SERIES A LETTER REPORT INTERPRETING THE COMPONENT PERFORMANCE IN TERMS OF SURVIVING THE TEST CONDITIONS OR THE FAILURE MODE AND THE RESULTS OF THE PRE-TEST AND POST-TEST EXAMINATION AND FUNCTIONAL TEST WILL BE PROVIDED. SOME COMPONENTS MAY BE EXPOSED IN A FORM TO TEST MEANS OF PROTECTING THEM FROM THE g
COM3USTION TRANSIENTS. INTERPRETATION AND REPORTING OF RESULTS IN TERMS OF EQUIPMENT SURVIVABILITY IN CONTAINMENT BURN ENVIRONMENTS WILL BE PERFORMED 6
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3.
DEVELOP A SERIES OF EXPERIMENTS TO BE PERFORMED IN 1NE RADIANT HEAT FACI-LITY TO DETERMINE IF THESE TESTS CAN SIMULATE THE TNFRMAI.SELECT g
HYDROGEN COMBINATION IN ACCIDENT SCENARIOS AND TO EXPOSE
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3 SAFETY CONPONENTS TO THIS ENVIRONMENT. SPECIFICATIONS FOR PRETE 43 AND POST.-TEST EXAMINATION AND FUNCTIONAL TEST OF COMPONENTS WILL j
ALSO BE PROVIDED F03 RES CONCURRENCE PRIOR TO EXPOSURE. SOME i
COMPONENTS SELECTED FOR EXPOSURE IN THE RADIANT HEAT FACILITY W a;
FJ' BE THE SAME AS THOSE EXPOSED TO THE VGES BURN CONDITIONS TO E E 1
.THE VALIDITY OF RESULTS FROM THE RADIANT HEAT FACILITt. A LETTER
- REPORT ON THESE EXAMINATIONS WILL BE PROVIDED FOR EACH TEST SER
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PROVIDE COMPONENTS FOR TEST AND ASSOCIATED FUNCTIONAL TEST EQUI (POWER SUPPLIES, ETC.). TEST COMPONENTS WILL BE TYPICAL 0F THOSE 1
f; QUALIFIED FOR USE IN UTILITY NUCLEAR POWER PLANT CONTAINMENTS 5.
PREPARE TEST PLAN FOR FY82 EXPERIMENTS TO EXPOSE COMPONENTS TO ANY ADDITIONA TESTS NEEDED IN THE AB0VE FACILITIES AND TO COMBINED EFFECTS OF COM IN A H / AIR AND STEAM ENVIRONMENT IN THE FULLY INSTRUMENTED
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FACILI Y.
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6.
PROVIDE TECHNICAL ASSISTANCE ON THE EXPERIMENTAL WORK AS REQUIRED.
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