ML18317A181: Difference between revisions

From kanterella
Jump to navigation Jump to search
(Created page by program invented by StriderTol)
(Created page by program invented by StriderTol)
 
Line 1: Line 1:
{{Adams
#REDIRECT [[L-MT-18-060, License Amendment Request: Revise the Safety Limit Minimum Critical Power Ratio in Reactor Core Safety Limit 2.1.1]]
| number = ML18317A181
| issue date = 11/12/2018
| title = License Amendment Request: Revise the Safety Limit Minimum Critical Power Ratio in Reactor Core Safety Limit 2.1.1
| author name = Church C R
| author affiliation = Northern States Power Company, Minnesota, Xcel Energy
| addressee name =
| addressee affiliation = NRC/Document Control Desk, NRC/NRR
| docket = 05000263
| license number = DPR-022
| contact person =
| case reference number = L-MT-18-060
| package number = ML18317A180
| document type = Letter, License-Application for Facility Operating License (Amend/Renewal) DKT 50, Technical Specifications
| page count = 45
| project =
| stage = Other
}}
 
=Text=
{{#Wiki_filter:Framatome Framatome Framatome Framatome The is Framatome
 
The Framatome
 
(Deleted)(Deleted)(Deleted)(Deleted)
 
CW01L Rev. 5.2 - 24/08/18 This text shall no be visible - Adjust frames over to ensure signature block will completely cover this text
 
Thistextshallnobevisible
-Adjustframesovertoensuresignatureblockwillcompletelycoverthistext                  IDENTIFICATION                          REVISION Framatome Fuel      FS1-0039793
 
===1.0 TOTAL===
NUMBER OF PAGES:
11  Monticello Cycle 30 SAFLIM3D MCPR Safety Limit Results (Non-Proprietary Version)
ADDITIONAL INFORMATION:  This is the Non-Proprietary Version of FS1-0039792.
PROJECT Monticello-1 (USA010)
DISTRIBUTION TO PURP OSE OF DISTRIBUTION HANDLING None  Tony Will
 
CATEGORY EIR - Engineering Information Report STATUS    ROLES NAMES DATES ORGANIZATIONS  SIGNATURES AUTHOR  REVIEWER APPROVER HOWLETT Dirk CHEN Wei-Ting SCHNEPP Robert; BYRAM Morris    RELEASE DATA:
Classification Export  AL: 0E001 ECCN: 0E001 Les marchandises portant la désignation "AL inégal N" sont soumises  la réglementation européenne ou allemande en matire de contrle des exportations au sein ou hors de l'UE. Les marchandises portant la désignation "ECCN inégal N" sont soumises  la réglementation américaine. Les marchandises portant les désignations "AL:N" ou "ECCN:N" peuvent, selon la destination ou l'utilisation finales du produit, également tre soumises  autorisation.Export classification    AL: 0E001          ECCN: 0E001 Goods labeled with AL not equal to N are subject  to European or German export authorization when being exported within or out of the EU. Goods labeled with ECCN not equal to N are subject to US reexport authorization. Even without a label, or with label AL: N or ECCN: N, authorization may be required due to the final whereabouts and purpose for which the goods are to be used.
SAFETY RELATED DOCUMENT: CHANGE CONTROL RECORDS: This document, when revised, must be reviewed or approved by following regions:France:  USA: Germany: N Y NExportkennzeichnung    AL: 0E001 ECCN: 0E001 Die mit "AL ungleich N" gekennzeichneten Güter unterliegen bei der Ausfuhr aus der EU bzw. innergemeinschaftlichen Verbringung der europischen bzw. deutschen Ausfuhrgenehmigungspflicht. Die mit "ECCN ungleich N" gekennzeichneten Güter unterliegen der US-Reexportgenehmigungspflicht. Auch ohne Kennzeichen, bzw. bei Kennzeichen "AL: N" oder "ECCN: N", kann sich eine Genehmigungspflicht, unter anderem durch den Endverbleib und Verwendungszweck der Güter, ergeben.
 
N°      FS1-0039793 Rev. 1.0 Monticello Cycle 30 SAFLIM3D MCPR Safety Limit Results (Non-Proprietary Version) Handling: None Page 2/11 Framatome - Fuel This document is subject to the restrictions set forth on the first or title page REVISIONS REVISION DATE EXPLANATORY NOTES 1.0 See 1 st page release date New document. This is the Non-Proprietary Version of FS1-0039792.
 
N°      FS1-0039793 Rev. 1.0 Monticello Cycle 30 SAFLIM3D MCPR Safety Limit Results (Non-Proprietary Version) Handling: None Page 3/11 Framatome - Fuel This document is subject to the restrictions set forth on the first or title page TABLE OF CONTENTS 1.
 
==SUMMARY==
OF RESULTS / CONCLUSIONS........................................................................................ 41.1.METHODOLOGY....................................................................................................................
...................... 41.2.ANALYSIS ......................................................................................................................
.............................. 51.3.RESULTS .......................................................................................................................
.............................. 62.REFERENCES ....................................................................................................................
................ 11 LIST OF TABLES Table 1Uncertainties Used in SLMCPR Analysis ................................................................................. 8Table 2Results Summary of SLMCPR Analysis ................................................................................... 9 LIST OF FIGURES Figure 1Monticello Power / Flow Map ................................................................................................. 1 0
N°      FS1-0039793 Rev. 1.0 Monticello Cycle 30 SAFLIM3D MCPR Safety Limit Results (Non-Proprietary Version) Handling: None Page 4/11 Framatome - Fuel This document is subject to the restrictions set forth on the first or title page
: 1.
 
==SUMMARY==
OF RESULTS / CONCLUSIONS The purpose of this analysis is to provide the safety limit minimum critical power ratio (SLMCPR) results for Monticello Nuclear Generating Plant (MNGP) in support of Cycle 30.
 
===1.1. METHODOLOGY===
The two-loop operation (TLO) and single-loop operation (SLO) SLMCPRs were determined using the methodology presented in Reference 1. The SLMCPR is defined as the minimum value of the critical power ratio which ensures at least 99.9% of the fuel rods in the core are expected to avoid boiling transition (BT) during normal operation or an anticipated operational occurrence (AOO). The SLMCPR is determined using a statistical analysis employing a Monte Carlo process that perturbs the input parameters used in the calculation of minimum critical power ratio (MCPR). The set of uncertainties used in the statistical analysis includes both fuel-related and plant-related uncertainties. The SLMCPR analysis is performed with a power distribution that conservatively represents expected reactor operating states that could both exist at the operating limit MCPR (OLMCPR) and produce a MCPR equal to the SLMCPR during an AOO.
[            ] In the Framatome methodology, the effects of channel bow on the critical power performance are accounted for in the SLMCPR analysis.
[    ]
N°      FS1-0039793 Rev. 1.0 Monticello Cycle 30 SAFLIM3D MCPR Safety Limit Results (Non-Proprietary Version) Handling: None Page 5/11 Framatome - Fuel This document is subject to the restrictions set forth on the first or title page
[  ] This adjustment is a plant specific extension of the Reference 1 approved methodology and is discussed in Reference 2 Section 2-25. [    ] During their review of the extended flow window (EFW) submittal, the NRC suggested a core power / core flow ratio of 42 MWt/Mlb/hr serve as the threshold above which a 0.03 penalty must be added to the SLMCPR otherwise supported by Framatome analysis methods. A 0.03 penalty has been applied when
 
the ratio of core power to core flow is  42 MWt / Mlbm/hr in the EFW region, refer to Figure 1. The 0.03 penalty is not applied when MNGP is operating in the Maximum Extended Load Line Limit (MELLLA) region or operating in the EFW region where the ratio of core power to core flow is < 42 MWt / Mlbm/hr.
Single-loop operation is not allowed in the EFW; therefore, the 0.03 penalty implemented when the ratio of core power to core flow is  42 MWt / Mlbm/hr in the EFW region is not applicable to the SLO SLMCPR. 1.2. ANALYSIS The core loading and cycle depletion from the Monticello Cycle 30 fuel cycle design was used as the basis for the SLMCPR analysis. The cycle is made up of GE14 and ATRIUM' 10XM* fuel. TLO analyses were performed
[  ] for the Monticello Cycle 30 power flow map. Analyses were also performed
[    ] The SLO analyses used a
[  ]
* ATRIUM is a trademark of Framatome Inc.
N&deg;      FS1-0039793 Rev. 1.0 Monticello Cycle 30 SAFLIM3D MCPR Safety Limit Results (Non-Proprietary Version) Handling: None Page 6/11 Framatome - Fuel This document is subject to the restrictions set forth on the first or title page The ACE/ATRIUM 10XM critical power correlation (Reference 4) is used for the ATRIUM 10XM fuel while the SPCB critical power correlation (Reference 5) is used for the GE14 fuel. The application of the SPCB critical power correlation to GE14 fuel
[  ] The uncertainties used in the SLMCPR analysis are presented in Table 1. Appropriate core monitoring uncertainties have been developed for GE14 and ATRIUM 10XM fuel use at Monticello. The radial and nodal power uncertainties used in the analysis include the combined effects of a 60 day TIP interval (48 days + 25% grace), one TIP machine out-of-service, and an LPRM calibration interval of
 
1000 MWd/ST. Based on the channel bow statistics provided in Table 1 of Reference 7, [      ] [        ] 1.3. RESULTS Analyses performed with the Cycle 30 core design support the following MCPR safety limits:
* Two-loop operation in the MELLLA region or when the ratio of core power to core flow is < 42 MWt
/ Mlbm/hr in the EFW: a MCPR safety limit of 1.08
[  ]
N&deg;      FS1-0039793 Rev. 1.0 Monticello Cycle 30 SAFLIM3D MCPR Safety Limit Results (Non-Proprietary Version) Handling: None Page 7/11 Framatome - Fuel This document is subject to the restrictions set forth on the first or title page
* Two-loop operation when the ratio of core power to core flow is  42 MWt / Mlbm/hr in the EFW: a MCPR safety limit of 1.14
[  ] (this SLMCPR includes a 0.03 penalty to account for power distribution uncertainties beyond those inherent in the Framatome safety analysis methodology). Prior to the 0.03 penalty, the SLMCPR for  42 MWt / Mlbm/hr in the EFW is 0.03 higher than the SLMCPR for < 42 MWt / Mlbm/hr in the EFW.
* Single-loop operation: a MCPR safety limit of 1.12
[  ] and a MCPR safety limit of 1.13
[  ] Single-loop operation is not allowed within the EFW, therefore the 0.03 penalty does not apply.
 
N&deg;      FS1-0039793 Rev. 1.0 Monticello Cycle 30 SAFLIM3D MCPR Safety Limit Results (Non-Proprietary Version) Handling: None Page 8/11 Framatome - Fuel This document is subject to the restrictions set forth on the first or title page Table 1 Uncertainties Used in SLMCPR Analysis Parameter Standard Deviation Reference Reactor System Related Uncertainties Feedwater flow rate 1.8% 3, Item 7.1.1 and Comment 7-1 Feedwater temperature 0.8% 3, Item 7.1.2 and Comment 7-1 Core pressure 0.8% 3, Item 7.1.3 and Comment 7-1 Total core flow rate Two-loop 2.5% 3, Item 7.1.4 Single-loop 6.0% 3, Item 7.1.5 Core Monitoring Uncertainties
[                                          ]
* These uncertainties are based on a 60 day TIP interval (48 days + 25% grace), one traversing incore probe (TIP) out-of-service (OSS), and an LPRM calibration interval of 1000 MWd/ST, Reference 9.
N&deg;      FS1-0039793 Rev. 1.0 Monticello Cycle 30 SAFLIM3D MCPR Safety Limit Results (Non-Proprietary Version) Handling: None Page 9/11 Framatome - Fuel This document is subject to the restrictions set forth on the first or title page Table 2 Results Summary of SLMCPR Analysis Operating Condition SLMCPR Number of Rods in Boiling Transition*
Percentage of Rods in Boiling Transition* TLO ratio of core power to core flow < 42 MWt / Mlbm/hr in the EFW 1.08 33 0.0746 TLO ratio of core power to core flow  42 MWt / Mlbm/hr in the EFW 1.14 36 0.0814 SLO 1.13 34 0.0769 1.12 41 0.0927
* The acceptance criterion is 0.10% rods in BT. The total number of heated rods in the core = 44212. Therefore, the maximum allowable number of BT rods is 44.
The SLMCPR includes a 0.03 penalty to account for power distribution uncertainties beyond those inherent in the Framatome safety analysis methodology.
N&deg;      FS1-0039793 Rev. 1.0 Monticello Cycle 30 SAFLIM3D MCPR Safety Limit Results (Non-Proprietary Version) Handling: None Page 10/11 Framatome - Fuel This document is subject to the restrictions set forth on the first or title page Figure 1 Monticello Power / Flow Map
 
N&deg;      FS1-0039793 Rev. 1.0 Monticello Cycle 30 SAFLIM3D MCPR Safety Limit Results (Non-Proprietary Version) Handling: None Page 11/11 Framatome - Fuel This document is subject to the restrictions set forth on the first or title page
: 2. REFERENCES 1. ANP-10307PA Revision 0, AREVA MCPR Safety Limit Methodology for Boiling Water Reactors , AREVA NP, June 2011. 2. ANP-3224P Revision 2, Applicability of AREVA NP BWR Methods to Monticello, AREVA NP, June 2013. 3. ANP-3666P Revision 0, Monticello Cycle 30 Plant Parameters Document, Framatome, June 2018. 4. ANP-10298P-A Revision 1, ACE/ATRIUM 10XM Critical Power Correlation, AREVA, March 2014. 5. EMF-2209(P)(A) Revision 3, SPCB Critical Power Correlation, AREVA NP, September 2009. 6. EMF-2245(P)(A) Revision 0, Application of Siemens Power Corporations Critical Power Correlations to Co-Resident Fuel, Siemens Power Corporation, August 2000. 7. Letter, D Lutz (GNF) to D Mienke (Xcel), Monticellos Transition to Areva Fuel, Item 7, Fuel Channel Bow Data, eDRF 0000-0143-5145, January 18, 2012 (38-2200963-000). 8. FS1-0027113 Revision 1.0, Assembly Flow Uncertainty in Monticello When the Core is Monitored with GARDEL, AREVA, September 2016. 9. FS1-0037377 Revision 1.0, Monticello Calculation Plan for Cycle 30, Framatome, June 2018.}}

Latest revision as of 02:48, 5 April 2019

Redirect to:

Retrieved from "https://kanterella.com/w/index.php?title=ML18317A181&oldid=1398672"