ML13316B110

From kanterella
Jump to navigation Jump to search
Attachment 9 - Global Nuclear Fuel Report GNF-0000-0156-7490-RO-NP, Gnf Additional Information Regarding the Requested Change to the Technical Specification SLMCPR, Dated August 26, 2013 (Non-proprietary)
ML13316B110
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 11/01/2013
From:
Constellation Energy Nuclear Group, EDF Group, Nine Mile Point
To:
Office of Nuclear Reactor Regulation
Shared Package
ML13316B090 List:
References
eDRF Section 0000-0156-7531-R3, GNF-0000-0156-7490-R0-NP
Download: ML13316B110 (27)
v • d • e


Text

ATTACHMENT 9 GLOBAL NUCLEAR FUEL REPORT GNF-0000-0156-7490-RO-NP, "GNF ADDITIONAL INFORMATION REGARDING THE REQUESTED CHANGE TO THE TECHNICAL SPECIFICATION SLMCPR,"

DATED AUGUST 26, 2013 (NON-PROPRIETARY)

Nine Mile Point Nuclear Station, LLC November 1, 2013

GNPGlobal Nuclear Fuel Global Nuclear Fuel A Joint Venture of GEToshiba. &Hitachi August 26, 2013 GNF-0000-0 156-7490-RO-NP eDRF Section: 0000-0156-7531-R3 Non-ProprietaryInformation - Class I (Public)

GNF Additional Information Regarding the Requested Changes to the Technical Specification SLMCPR Nine Mile Point 2 Cyclel5 Copyright 2013 GlobalNuclear Fuels-Americas,LLC All Rights Reserved

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment Information Notice This is a non-proprietary version of the document GNF-0000-0156-7490-RO-P, Revision 0, which has the proprietary information removed. Portions of the document that have been removed are indicated by an open and closed bracket as shown here ((

Important Notice Regarding Contents of this Report Please Read Carefully The only undertakings of Global Nuclear Fuel-Americas, LLC (GNF-A) with respect to information in this document are contained in contracts between GNF-A and its customers, and nothing contained in this document shall be construed as changing those contracts. The use of this information by anyone other than those participating entities and for any purposes other than those for which it is intended is not authorized; and with respect to any unauthorized use, GNF-A makes no representation or warranty, and assumes no liability as to the completeness, accuracy, or usefulness of the information contained in this document.

Information Notice {Verified Information} Page 2 of 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment Table of Contents 1.0 M ETHODOLOGY .......................................................................................................................................... 4 2.0 DISCUSSION ................................................................................................................................................... 4 2.1. M AJOR CONTRIBUTORS TO SLM CPR CHANGE .......................................................................................... 4 2.2. DEVIATIONS IN NRC-APPROVED UNCERTAINTIES ...................................................................................... 5 2 .2.1. R -F acto r ................................................................................................................................................. 5 2.2.2. Core Flow Rate andRandom Effective TIP Reading......................................................................... 6 2.3. DEPARTURE FROM NRC-APPROVED M ETHODOLOGY ................................................................................ 6 2.4. FUEL AXIAL POWER SHAPE PENALTY ..................................................................................................... 6 2.5. M ETHODOLOGY RESTRICTIONS ...................................................................................................................... 7 2.6. M INIMUM CORE FLOW CONDITION ........................................................................................................ 8 2.7. LIMITING CONTROL ROD PATTERNS ...................................................................................................... 8 2.8. CORE M ONITORING SYSTEM .......................................................................................................................... 8 2.9. POWER / FLOW M AP ....................................................................................................................................... 8 2.10. CORE LOADING DIAGRAM .......................................................................................................................... 8 2.11. FIGURE RE FERENCES .................................................................................................................................. 9 2.12. ADDITIONAL SLM CPR LICENSING CONDITIONS .................................................................................... 9 2.13. 10CFR PART 21 EVALUATION .................................................................................................................... 9 2.14.

SUMMARY

.................................................................................................................................................. 9

3.0 REFERENCES

.............................................................................................................................................. 10 List of Figures FIGURE 1. CYCLE 15 CORE LOADING DIAGRAM .......................................................................................................... 11 FIGURE 2. CYCLE 14 CORE LOADING DIAGRAM .......................................................................................................... 12 FIGURE 3. FIGURE 4.1 FROM NEDC-3260 1P-A ................................................................................................... 13 FIGURE 4. FIGURE 111.5-I FROM NEDC-32601 P-A ........................... ............... ............. .................. 14 FIGURE 5. RELATIONSHIP BETWEEN M IP AND CPR M ARGIN .................................................................................. 15 List of Tables TABLE 1. DESCRIPTION OF CORE ................................................................................................................................. 16 TABLE 2. SLM CPR CALCULATION M ETHODOLOGIES .............................................................................................. 17 TABLE 3. M ONTE CARLO CALCULATED SLM CPR vs. ESTIMATE ........................................................................... 18 TABLE 4. NON-POWER DISTRIBUTION UNCERTAINTIES .......................................................................................... 20 TABLE 5. POWER DISTRIBUTION UNCERTAINTIES ................................................................................................... 23 TABLE 6. CRITICAL POWER UNCERTAINTIES ............................................................................................................... 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment 1.0 Methodology GNF performs Safety Limit Minimum Critical Power Ratio (SLMCPR) calculations in accordance to NEDE-2401 1-P-A "General Electric Standard Application for Reactor Fuel" (Revision 19) using the following NRC-approved methodologies and uncertainties:

0 NEDC-32601P-A "Methodology and Uncertainties for Safety Limit MCPR Evaluations" (August 1999).

  • NEDC-32694P-A "Power Distribution Uncertainties for Safety Limit MCPR Evaluations" (August 1999).
  • NEDC-32505P-A "R-Factor Calculation Method for GEl 1, GEl2 and GEl3 Fuel" (Revision 1, July 1999).

The latter reference is applicable to GNF's current fuel offerings of GE14 and GNF2. Both are 1Oxl0 lattice designs with two water rods, as for GE 12.

Table 2 identifies the methodologies used for the Nine Mile Point 2 Cycle 14 and the Cycle 15 SLMCPR calculations.

2.0 Discussion In this discussion, the TLO nomenclature is used for two recirculation loops in operation, and the SLO nomenclature is used for one recirculation loop in operation.

2.1. Major Contributors to SLMCPR Change The calculated Monte Carlo SLMCPR values for the prior cycle and the current cycle are presented in Table 3.

In general, the calculated safety limit is dominated by two key parameters: (1) flatness of the core bundle-by-bundle MCPR distribution, and (2) flatness of the bundle pin-by-pin power /

R-Factor distribution. Greater flatness in either parameter yields more rods susceptible to boiling transition and thus a higher calculated SLMCPR. MIP (MCPR Importance Parameter) measures the core bundle-by-bundle MCPR distribution and RIP (R-Factor Importance Parameter) measures the bundle pin-by-pin power / R-Factor distribution. The impact of the fuel loading pattern on the calculated TLO SLMCPR has been correlated to the parameter MIPRIP, which combines the MIP and RIP values.

Another factor besides core MCPR distribution or bundle R-factor distribution that significantly impacts the SLMCPR is the expansion of the analysis domain that comes with the initial application of MELLLA+. The rated power / minimum core flow point is analyzed at a lower Methodology {Verified Information} Page 4 of 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment core flow (than without MELLLA+) using increased uncertainties (see Section 2.2.2) that tend to increase the SLMCPR. Also, a new point at off-rated power / off-rated flow is analyzed using the increased uncertainties. It is expected that in most cases this off-rated power / off-rated flow point will set the overall limit.

Table 3 presents the MIP and RIP parameters for the previous cycle and the current cycle along with the TLO SLMCPR estimates using MIPRIP correlations. The MIPRIP prediction is correlated to Monte Carlo results for rated power / rated flow. Predictions for the MELLLA+

domains (at rated power / minimum core flow and off-rated power / off-rated core flow) must be adjusted by an amount estimated to account for the impact of the larger (SLO) uncertainties. In addition, Table 3 presents estimated impacts on the TLO SLMCPR due to methodology deviations, penalties, and/or uncertainty deviations from approved values. Based on the MIPRIP correlation and any impacts due to deviations from approved values, a final estimated TLO SLMCPR is determined. Table 3 also provides the actual calculated Monte Carlo SLMCPR.

Given the bias and uncertainty in the MIPRIP correlation (( ))

and the inherent variation in the Monte Carlo results (( )), the change in the Nine Mile Point 2 Cycle l5 calculated Monte Carlo TLO SLMCPR is consistent with the corresponding estimated TLO SLMCPR value.

The intent of the final estimated TLO SLMCPR is to provide an estimate to check the reasonableness of the Monte Carlo result. It is not used for any other purpose. The methodology and final SLMCPR is based on the rigorous Monte Carlo analysis.

The items in Table 3 that result in the increase of the estimated SLMCPR are discussed in Section 2.2.

2.2. Deviations in NRC-Approved Uncertainties Tables 4 and 5 provide a list of NRC-approved uncertainties along with values actually used. A discussion of deviations from these NRC-approved values follows; all of which are conservative relative to NRC-approved values. Also, estimated impact on the SLMCPR is provided in Table 3 for each deviation.

2.2.1. R-Factor At this time, GNF has generically increased the GEXL R-Factor uncertainty from ((

)) to account for an increase in channel bow due to the emerging unforeseen phenomena called control blade shadow corrosion-induced channel bow, which is not accounted for in the channel bow uncertainty component of the approved R-Factor uncertainty. The step "YRPEAK" in Figure 4.1 from NEDC-32601P-A, which has been provided for convenience in Figure 3 of this attachment, is affected by this deviation. Reference 4 technically justifies that a GEXL R-Factor uncertainty of (( )) accounts for a channel bow uncertainty of up to

(( R]

Discussion {Verified Information} Page 5 of 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment NMP2 has experienced control blade shadow corrosion-induced channel bow to the extent that an increase in the NRC-approved R-Factor uncertainty (( )) is deemed prudent to address its impact. Accounting for the control blade shadow corrosion-induced channel bow, the Nine Mile Point 2 Cycle 15 analysis shows an expected channel bow uncertainty of (( )),

which is bounded by a GEXL R-Factor uncertainty of (( )). Thus the use of a GEXL R-Factor uncertainty of (( )) adequately accounts for the expected control blade shadow corrosion-induced channel bow for Nine Mile Point 2 Cycle 15.

2.2.2. Core Flow Rate and Random Effective TIP Reading In Reference 5 GNF committed to the expansion of the state points used in the determination of the SLMCPR. Consistent with the Reference 5 commitments, GNF performs analyses at the rated core power and minimum licensed core flow point in addition to analyses at the rated core power and rated core flow point. The approved SLMCPR methodology is applied at each state point that is analyzed.

For the TLO calculations performed in the MELLLA+ domain at rated power / minimum core flow and off-rated power / off-rated core flow, the approved uncertainty values for the core flow rate (2.5%) and the random effective TIP reading (1.2%) are conservatively adjusted by using the SLO uncertainty values of 6.0% and 2.85% for the core flow rate and random effective TIP reading respectively. The steps "y CORE FLOW" and "o TIP (INSTRUMENT)" in Figure 4.1 from NEDC-32601 P-A, which has been provided for convenience in Figure 3 of this attachment, are affected by this deviation, respectively.

The treatment of the core flow and random effective TIP reading uncertainties is based on the assumption that the signal to noise ratio deteriorates as core flow is reduced. GNF believes this is conservative.

2.3. Departure from NRC-Approved Methodology No departures from NRC-approved methodologies were used in the Nine Mile Point 2 Cycle 15 SLMCPR calculations.

2.4. Fuel Axial Power Shape Penalty At this time, GNF has determined that higher uncertainties and non-conservative biases in the GEXL correlations for the various types of axial power shapes (i.e., inlet, cosine, outlet and double hump) could potentially exist relative to the NRC-approved methodology values, see References 3, 6, 7 and 8. The following table identifies, by marking with an "X", this potential for each GNF product line currently in use:

Discussion {Verified Information} Page 6 of 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment Axial bundle power shapes corresponding to the limiting SLMCPR control blade patterns are determined using the PANACEA 3D core simulator. These axial power shapes are classified in accordance to the following table:

If the limiting bundles in the SLMCPR calculation exhibit an axial power shape identified by this table, GNF penalizes the GEXL critical power uncertainties to conservatively account for the impact of the axial power shape. Table 6 provides a list of the GEXL critical power uncertainties determined in accordance to the NRC-approved methodology contained in NEDE-2401 I-P-A along with values actually used.

For the limiting bundles, the fuel axial power shapes in the SLMCPR analysis were examined to determine the presence of axial power shapes identified in the above table. These power shapes were not found; therefore, no power shape penalties were applied to the calculated Nine Mile Point 2 Cycle 15 SLMCPR values.

2.5. Methodology Restrictions The four restrictions identified on Page 3 of NRC's Safety Evaluation relating to the General Electric Licensing Topical Reports NEDC-32601P, NEDC-32694P, and Amendment 25 to NEDE-2401 I-P-A (March 11, 1999) are addressed in References 1, 2, 3, and 9.

Discussion (Verified Information} Page 7 of 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment No new GNF fuel designs are being introduced in Nine Mile Point 2 Cycle 15; therefore, the NEDC-32505P-A statement "...if new fuel is introduced, GENE must confirm that the revised R-Factor method is still valid based on new test data" is not applicable.

2.6. Minimum Core Flow Condition For Nine Mile Point 2 Cycle 15, the most limiting SLMCPR calculation occurred at the 77.6%

rated power / 55.0% rated flow point. At low core flows, the search spaces for the limiting rod pattern and the nominal rod pattern are essentially the same. Additionally, the condition that MIP (( )) establishes a reasonably bounding limiting rod pattern. Hence, the rod pattern used to calculate the SLMCPR at 77.6% rated power / 55.0%

rated flow reasonably assures that at least 99.9% of the fuel rods in the core would not be expected to experience boiling transition during normal operation or anticipated operational occurrences during the operation of Nine Mile Point 2 Cycle 15. Consequently, the SLMCPR value calculated from the 77.6% rated power / 55.0% rated core flow condition limiting MCPR distribution reasonably bounds this mode of operation for Nine Mile Point 2 Cycle 15.

2.7. Limiting Control Rod Patterns The limiting control rod patterns used to calculate the SLMCPR reasonably assures that at least 99.9% of the fuel rods in the core would not be expected to experience boiling transition during normal operation or anticipated operational occurrences during the operation of Nine Mile Point 2 Cycle 15.

2.8. Core Monitoring System For Nine Mile Point 2 Cycle 15, the 3DMONICORE system will be used as the core monitoring system.

2.9. Power / Flow Map The utility has provided the current and previous cycle power / flow map in a separate attachment.

2.10. Core Loading Diagram Figures 1 and 2 provide the core-loading diagram for the current and previous cycle respectively, which are the Reference Loading Pattern as defined by NEDE-2401 1-P-A. Table 1 provides a description of the core.

Discussion {Verified Information} Page 8 of 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment 2.11. Figure References Figure 3 is Figure 4.1 from NEDC-32601P-A. Figure 4 is Figure 111.5-1 from NEDC-32601P-A.

Figure 5 is based on Figure 111.5-2 from NEDC-32601P-A, and has been updated with GE14 and GNF2 data.

2.12. Additional SLMCPR Licensing Conditions For Nine Mile Point 2 Cycle 15, the additional SLMCPR licensing condition that the SLMCPR shall be established by adding 0.02 to the cycle-specific SLMCPR value calculated using the NRC-approved methodologies documented in NEDE-2401 I-P-A has been applied (see Table 3).

2.13. 10CFR Part 21 Evaluation There are no known 10CFR Part 21 factors that affect the Nine Mile Point 2 Cycle 15 SLMCPR calculations.

2.14. Summary The requested change to the Technical Specification SLMCPR value is 1.09 for the TLO and the SLO value will remain as is, 1.09, for Nine Mile Point 2 Cycle 15. These values bound the calculated results for Nine Mile Point 2 Cycle 15.

Discussion {Verified Information} Page 9 of 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment 3.0 References

1. Letter, Glen A. Watford (GNF-A) to U.S. Nuclear Regulatory Commission Document Control Desk with attention to R. Pulsifer (NRC), "Confirmation of l0xl0 Fuel Design Applicability to Improved SLMCPR, Power Distribution and R-Factor Methodologies,"

FLN-2001-016, September 24, 2001.

2. Letter, Glen A. Watford (GNF-A) to U.S. Nuclear Regulatory Commission Document Control Desk with attention to J. Donoghue (NRC), "Confirmation of the Applicability of the GEXLI4 Correlation and Associated R-Factor Methodology for Calculating SLMCPR Values in Cores Containing GE 14 Fuel," FLN-2001-017, October 1, 2001.
3. Letter, Glen A. Watford (GNF-A) to U.S. Nuclear Regulatory Commission Document Control Desk with attention to Joseph E. Donoghue (NRC), "Final Presentation Material for GEXL Presentation - February 11, 2002," FLN-2002-004, February 12, 2002.
4. Letter, John F. Schardt (GNF-A) to U.S. Nuclear Regulatory Commission Document Control Desk with attention to Mel B. Fields (NRC), "Shadow Corrosion Effects on SLMCPR Channel Bow Uncertainty," FLN-2004-030, November 10, 2004.
5. Letter, Jason S. Post (GENE) to U.S. Nuclear Regulatory Commission Document Control Desk with attention to Chief, Information Management Branch, et al. (NRC), "Part 21 Final Report: Non-Conservative SLMCPR," MFN 04-108, September 29, 2004.
6. Letter, Glen A. Watford (GNF-A) to U.S. Nuclear Regulatory Commission Document Control Desk with attention to Alan Wang (NRC), "NRC Technology Update -

Proprietary Slides - July 31 - August 1, 2002," FLN-2002-015, October 31, 2002.

7. Letter, Jens G. Munthe Andersen (GNF-A) to U.S. Nuclear Regulatory Commission Document Control Desk with attention to Alan Wang (NRC), "GEXL Correlation for 1OX1O Fuel," FLN-2003-005, May 31, 2003.
8. Letter, Andrew A. Lingenfelter (GNF-A) to U.S. Nuclear Regulatory Commission Document Control Desk with cc to MC Honcharik (NRC), "Removal of Penalty Being Applied to GEl4 Critical Power Correlation for Outlet Peaked Axial Power Shapes,"

FLN-2007-03 1, September 18, 2007.

9. Letter, Andrew A. Lingenfelter (GNF-A) to U.S. Nuclear Regulatory Commission Document Control Desk with cc to SS Philpott (NRC), "Amendment 33 to NEDE-2401 1-P, General Electric Standard Application for Reactor Fuel (GESTAR II) and GNF2 Advantage Generic Compliance with NEDE-2401 1-P-A (GESTAR II), NEDC-33270P, Revision 3, March 2010," MFN 10-045, March 5, 2010.

References {Verified Information} Page 10 of 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment 7 7 7 7 9 10 10 10 10 7 7 13 16 15 15 16 7 12 16 20 14 14 20 7 1 15 20 20 18 18 20 7 7 11 2 20 12 20 10 10 20 7 7 7 12 15 0 7 20 11 18 18 11 12 7 8 13 16 20 2 20 13 17 10 10 17 16 13 8 7 10 16 20 20 0 11 17 13 17 17 13 20 16 10 7 10 15 14 18 0 18 10 17 10 10 17 14 15 10 7 10 16 20 10 8 11 18 10 17 17 10 20 16 10 8 10 15 12 18 0 18 10 19 11 11 19 12 15 10 7 10 16 18 12 0 10 18 12 19 19 12 18 16 10 7 10 16 12 18 1 18 11 19 12 12 19 12 16 10 7 13 12 19 12 7 12 19 12 19 19 12 19 12 13 7 13 12 19 12 7 12 19 12 19 19 12 19 12 13 7 10 16 12 18 1 18 11 19 12 12 19 12 16 10 7 10 16 18 12 0 10 18 12 19 19 12 18 16 10 8 10 15 12 18 0 18 10 19 11 11 19 12 15 10 7 10 16 20 10 8 11 18 10 17 17 10 20 16 10 7 10 15 14 18 0 18 10 17 10 10 17 14 15 10 7 10 16 20 20 0 11 17 13 17 17 13 20 16 10 8 13 16 20 2 20 13 17 10 10 17 16 13 8 7 12 15 0 7 20 11 18 18 11 12 7 7 7 11 2 20 12 20 10 10 20 7 7 7 1 15 20 20 18 18 20 7 12 16 20 14 14 20 7 7 13 16 15 15 16 9 10 10 10 10 7 7 7 7 1 3 75 7 91 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 Fuel Type 7=GEI4-P1 0CNAB434-8G7.0/7G6.0-120T-1 50-T6-3233 (Cycle 13) 15=GE14-PIOCNAB430-1 5GZ-120T-150-T6-4239 (Cycle 15) 8=GE14-P1 OCNAB416-17GZ-1 20T-1 50-T6-3235 (Cycle 13) 16=GE 14-P IOCNAB430-14GZ- 120T- 150-T6-4240 (Cycle 15) 9=GE 14-PIOCNAB417-17GZ-1 20T-l 50-T6-3236 (Cycle 13) 17=GEI 4-PIOCNAB418-15GZ-120T-150-T6-4241 (Cycle 15)

I O=GEI4-P 10CNAB434-15GZ- 120T- 150-T6-4039 (Cycle 14) 18=GEI4-PIOCNAB419-17GZ-120T-150-T6-4242 (Cycle 15)

I I=GE14-PIOCNAB422-17GZ-120T-150-T6-4041 (Cycle 14) 12=GE14-PI OCNAB412-15GZ-120T-150-T6-4040 (Cycle 14) 19=GEI 4-PIOCNAB418-16GZ-120T-150-T6-4243 (Cycle 15) 13=GEI4-PIOCNAB422-17GZ-120T-150-T6-4042 (Cycle 14) 20=GE 14-P IOCNAB422-16GZ-120T- 150-T6-4244 (Cycle 15) 14=GE14-PIOCNAB412-14GZ-120T-150-T6-4043 (Cycle 14)

Figure 1. Cycle 15 Core Loading Diagram Figure 1. Cycle 15 Core Loading Diagram Page 11 of 26 (Verified Information}

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment 60 6 4 6 4 4 5 6 6 6 4 4 6 4 5 58 6 6 5 7 7 8 7 4 5 7 8 7 7 5 6 6 56 6 6 5 10 10 10 10 10 10 7 7 10 10 10 10 10 10 5 6 6 54 6 5 10 10 7 11 7 12 9 11 11 9 12 7 11 7 10 10 5 6 52 6 6 10 10 7 10 9 10 9 11 7 7 11 9 10 9 10 7 10 10 4 4 50 5 6 6 4 10 7 12 9 12 9 13 8 12 12 8 13 9 12 9 12 7 10 4 5 6 5 48 4 5 10 10 9 10 8 11 8 11 7 12 9 9 12 7 11 8 11 8 10 9 10 10 5 6 46 5 5 10 10 7 10 11 12 7 13 8 11 8 12 12 8 11 8 13 7 12 111 0 7 10 10 5 6 44 4 6 10 10 7 12 8 12 8 11 8 10 8 12 8 8 12 8 10 8 11 8 12 8 12 7 10 10 6 4 42 4 5 10 7 10 9 11 7 11 8 12 8 12 7 12 12 7 12 8 12 8 11 7 11 9 10 7 10 5 4 40 6 7 10 11 9 12 8 13 8 12 8 14 8 12 9 9 12 8 14 8 12 8 13 8 12 9 111 0 7 4 38 4 7 10 7 10 9 11 8 10 8 14 7 12 7 14 14 7 12 7 14 8 10 8 11 9 10 7 10 7 6 36 4 8 10 12 9 13 7 11 8 12 8 12 9 13 8 8 13 9 12 8 12 8 11 7 13 9 12 10 8 4 34 6 7 10 9 11 8 12 8 12 7 12 7 13 8 13 13 8 13 7 12 7 12 8 12 8 11 9 10 7 5 32 6 4 7 11 7 12 9 12 8 12 9 14 8 13 4 4 13 8 14 9 12 8 12 9 12 7 11 7 6 4 30 6 6 7 11 7 12 9 12 8 12 9 14 8 13 4 4 13 8 14 9 12 8 12 9 12 7 11 7 4 5 28 6 7 10 9 11 8 12 8 12 7 12 7 13 8 13 13 8 13 7 12 7 12 8 12 8 11 9 10 7 6 26 6 8 10 12 9 13 7 11 8 12 8 12 9 13 8 8 13 9 12 8 12 8 11 7 13 9 12 10 8 4 24 4 7 10 7 10 9 11 8 10 8 14 7 12 7 14 14 7 12 7 14 8 10 8 11 9 10 7 10 7 4 22 6 7 10 11 9 12 8 13 8 12 8 14 8 12 9 9 12 8 14 8 12 8 13 8 12 9 11 10 7 6 20 4 6 10 7 10 9 11 7 11 8 12 8 12 7 12 12 7 12 8 12 8 11 7 11 9 10 7 10 5 4 18 4 6 10 10 7 12 8 12 8 11 8 10 8 12 8 8 12 8 10 8 11 8 12 8 12 7 10 10 6 4 16 6 5 10 10 7 10 11 12 7 13 8 11 8 12 12 8 11 8 13 7 12 111 0 7 10 10 5 5 14 6 5 10 10 9 10 8 11 8 11 7 12 9 9 12 7 11 8 11 8 10 9 10 10 5 6 12 5 5 4 4 10 7 12 9 12 9 13 8 12 12 8 13 9 12 9 12 7 10 5 6 5 5 10 4 5 10 10 7 10 9 10 9 11 7 7 11 9 10 9 10 7 10 10 6 4 8 6 4 10 10 7 11 7 12 9 11 11 9 12 7 11 7 10 10 5 5 6 5 6 510 10 10 10 10 10 7 7 10 10 10 10 10 10 4 6 5 4 6 6 5 7 7 8 7 4 4 7 8 7 7 5 6 6 2 5 4 6 4 4 5 5 5 6 4 6 4 4 6 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 Fuel Type 4=GEI4-PIOCNAB416-13G6.0-120T-1 50-T6-301 I (Cycle 12) 10=GE14-PIOCNAB434-15GZ-120T-150-T6-4039 (Cycle 14) 5=GE14-PIOCNAB418-17GZ-120T-150-T6-3012 (Cycle 12) 1 1=GE14-PIOCNAB422-17GZ-120T-150-T6-4041 (Cycle 14) 6=GEI4-PIOCNAB417-1 1G7.0/5G6.0-120T-150-T6-3013 (Cycle 12) 12=GE14-PIOCNAB412-15GZ-120T-150-T6-4040 (Cycle 14) 7=GEI4-PIOCNAB434-8G7.0/7G6.0-120T-150-T6-3233 (Cycle 13) 13=GE14-PIOCNAB422-17GZ-120T-150-T6-4042 (Cycle 14) 8=GEI4-P10CNAB416-17GZ-l20T-l 50-T6-3235 (Cycle 13) 14=GE14-PIOCNAB412-14GZ-120T-150-T6-4043 (Cycle 14) 9=GE1 4-PIOCNAB417-17GZ-120T-150-T6-3236 (Cycle 13)

Figure 2. Cycle 14 Core Loading Diagram Figure 2. Cycle 14 Core Loading Diagram Page 12 of 26

{Verified Information}

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment Figure 3. Figure 4.1 from NEDC-32601P-A Figure 3. Figure 4.1 from NEDC-32601P-A Page 13 of 26

{Verified Information}

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment Figure 4. Figure 111.5-1 from NEDC-32601P-A Figure 4. Figure 111.5-1 from NEDC-32601P-A Page 14 of 26

{Verified Information}

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment Figure 5. Relationship Between MIP and CPR Margin Figure 5. Relationship Between MIP and CPR Margin Page 15 of 26

{Verified Information}

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment Table 1. Description of Core Cycle 14 Cycle 14 Cycle 15 Cycle 15 Cycle 15 Cycle 15 Description 3988 MWt 3988 MWt 3095 MWt 3988 MWt 3988 MWt 3988 MWt 107.42 Mlb/hr 108.50 Mlb/hr 59.68 Mlb/hr 92.23Mlb/hr 108.50 Mlb/hr 113.93 Mlb/hr Number of Bundles 764 764 in the Core Limiting Point (i.e. N/A EOC EOC EOC EOC EOC BOC/MOC/EOC)

Cycle Exposure at Limiting Point N/A 14500 16000 16000 16000 16000 (MWd/STU)

% Rated Core Power 100.0 100.0 77.6 100.0 100.0 100.0

% Rated Core Flow 99.0 100.0 55.0 85.0 100.0 105.0 Reload Fuel Type N/A GE14 GE14 Latest Reload LtsReodN/A 43.46 43.98 Batch Fraction, %

Latest Reload Average Batch, N/A 4.23 4.21 Wt% Enrichment I Core Fuel Fraction: 100.0 100.0

% GE14 Core Average 4.22 4.23 Wt% Enrichment Table 1. Description of Core lVerified Information) Page 16 of 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment Table 2. SLMCPR Calculation Methodologies Description Previous Cycle Current Cycle Non-power Distribution NEDC-32601P-A NEDC-3260lP-A Uncertainty Power Distribution NEDC-32694P-A NEDC-32694P-A Methodology Power Distribution NEDC-32694P-A NEDC-32694P-A Uncertainty NEDC-32694P-ANEDC-32694P-A Core Monitoring System 3DMONICORE 3DMONICORE R-Factor Calculation NEDC-32505P-A NEDC-32505P-A Methodology NEDC-32505P-ANEDC-32505P-A Table 2. SLMCPR Calculation Methodologies (Verified Informationj Page 17 of 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment Table 3. Monte Carlo Calculated SLMCPR vs. Estimate Cycle 14 Cycle 14 Cycle 15 Cycle 15 Cycle 15 Cycle 15 Description 3988 MWt 3988 MWt 3095 MWt 3988 MWt 3988 MWt 3988 MWt 107.42 Mlb/hr 108.50 Mlb/hr 59.68 Mlb/hr 92.23Mlb/hr 108.50 Mlb/hr 113.93 Mlb/hr

((I Table 3. Monte Carlo Calculated SLMCPR vs. Estimate {Verified Information) Page 18 of 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment Cycle 14 Cycle 14 Cycle 15 Cycle 15 Cycle 15 Cycle 15 Description 3988 MWt 3988 MWt 3095 MWt 3988 MWt 3988 MWt 3988 MWt 107.42 Mlb/hr 108.50 Mlb/hr 59.68 Mlb/hr 92.23Mlb/hr 108.50 Mlb/hr 113.93 Mlb/hr t I 4 .4 4 4 Table 3. Monte Carlo Calculated SLMCPR vs. Estimate (Verified Information) Page 19 of 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment Table 4. Non-Power Distribution Uncertainties Nominal (NRC- Cycle 14 Cycle 14 Cycle 15 Cycle 15 Cycle 15 Cycle 15 Description Approved) 3988 MWt 3988 MWt 3095 MWt 3988 MWt 3988 MWt 3988 MWt Value 107.42 Mlb/hr 108.50Mlb/hr 59.68 Mlb/hr 92.23MIb/hr 108.50Mlb/hr 113.93 Mlb/hr GETAB Feedwater Flow 1.76 N/A N/A N/A N/A N/A N/A Measurement Feedwater Temperature 0.76 N/A N/A N/A N/A N/A N/A Measurement Reactor Pressure 0.50 N/A N/A N/A N/A N/A N/A Measurement Core Inlet Temperature 0.20 N/A N/A N/A N/A N/A N/A Measurement Total Core 6.0 SLO Flow N/A N/A N/A N/A N/A N/A Measurement Channel area VionFlow 3.0 N/A N/A N/A N/A N/A N/A Area Variation Friction Factor 10.0 N/A N/A N/A N/A N/A N/A Multiplier Table 4. Non-Power Distribution Uncertainties lVerified Information) Page 20 of 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment Table 4. Non-Power Distribution Uncertainties Nominal (NRC- Cycle 14 Cycle 14 Cycle 15 Cycle 15 Cycle 15 Cycle 15 Description Approved) 3988 MWt 3988 MWt 3095 MWt 3988 MWt 3988 MWt 3988 MWt Value 107.42 Mlb/hr 108.50MIb/hr 59.68 Mlb/hr 92.23Mlb/hr 108.50Mlb/hr 113.93 Mlb/hr

__________ +/- (%)

+ _____

Channel Friction Factor 5.0 N/A N/A N/A N/A N/A N/A Multiplier I I NEDC-32601P-A Feedwater Flow [ ][ E(( ] H[ ] ((

Measurement Feedwater Temperature H[ R ] Er Measurement Reactor Pressure (( Er Er Er Er Er Er Measurement Core Inlet Temperature 0.2 N/A 0.2 0.2 0.2 0.2 0.2 Measurement Total Core 6.0 SLO 6.0 SLO 6.0 SLO 6.0 SLO Flow 2.5 T.0OTO2.50TTL Maee 2.5 TLO N/A 2.5 TLO 6.02.5 TLO Measurement 2.5 TLO Channel Flow Area Variation Er Er Er Er Er Er Er Table 4. Non-Power Distribution Uncertainties fVerified Informationj Page 21 of 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment Table 4. Non-Power Distribution Uncertainties Nominal (NRC- Cycle 14 Cycle 14 Cycle 15 Cycle 15 Cycle 15 Cycle 15 Description Approved) 3988 MWt 3988 MWt 3095 MWt 3988 MWt 3988 MWt 3988 MWt Value 107.42 Mlb/hr 108.50Mlb/hr 59.68 Mlb/hr 92.23Mlb/hr 108.50Mlb/hr 113.93 Mlb/hr

+/- a(%) ____________

Friction Factor Er 11 Er Er Multiplier [ ][ ))[ ][ ][][][]

Channel Friction Factor 5.0 N/A 5.0 5.0 5.0 5.0 5.0 Multiplier I I I Table 4. Non-Power Distribution Uncertainties lVerified Information) Page 22 of 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment Table 5. Power Distribution Uncertainties Nominal (NRC- Cycle 14 Cycle 14 Cycle 15 Cycle 15 Cycle 15 Cycle 15 Description Approved) 3988 MWt 3988 MWt 3095 MWt 3988 MWt 3988 MWt 3988 MWt Value 107.42 Mlb/hr 108.50Mlb/hr 59.68 Mlb/hr 92.23Mlb/hr 108.50Mlb/hr 113.93 Mlb/hr a

+/- (%) I I I GETAB/NEDC-32601P-A GEXL R-Factor [ ](( ][ ][ ]((][][ ]

Random 2.85 SLO Effective TIP 1.20 TLO N/A N/A N/A N/A N/A N/A Reading Systematic Effective TIP 8.6 N/A N/A N/A N/A N/A N/A Reading NEDC-32694P-A, 3DMONICORE GEXL R-Factor Random1.20 TLO 1.20 TLO 1.20 TLO 1.20 TLO Effective TIP .N/A 2.85 TLO 2.85 TLOLO . LO Raig2.85 SLO 2.85 SLO 2.85 SLO 2.85 SLO Reading TIP Integral (( ](( ](( ](( ]((]((]((]

Table 5. Power Distribution Uncertainties (Verified Informationj Page 23 of 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment Table 5. Power Distribution Uncertainties Nominal (NRC- Cycle 14 Cycle 14 Cycle 15 Cycle 15 Cycle 15 Cycle 15 Description Approved) 3988 MWt 3988 MWt 3095 MWt 3988 MWt 3988 MWt 3988 MWt Value 107.42 Mlb/hr 108.50MIb/hr 59.68 Mlb/hr 92.23Mlb/hr 108.50Mlb/hr 113.93 Mlb/hr

+/-+C (%)

Four Bundle Power Distribution (( Er Er E]

Surrounding TIP Location Contribution to Bundle Power Uncertainty (( Er E[

Due to LPRM Update Contribution to Bundle Power Due to [] Er Failed TIP Contribution to Bundle Power Due to ((E ][ Er Er ))

Failed LPRM Table 5. Power Distribution Uncertainties (Verified Information} Page 24 of 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment Table 5. Power Distribution Uncertainties Nominal (NRC- Cycle 14 Cycle 14 Cycle 15 Cycle 15 Cycle 15 Cycle 15 Description Approved) 3988 MWt 3988 MWt 3095 MWt 3988 MWt 3988 MWt 3988 MWt Value 107.42 Mlb/hr 108.50Mlb/hr 59.68 Mlb/hr 92.23Mlb/hr 108.50Mlb/hr 113.93 Mlb/hr

+/-+ (%)_________ ___

Total Uncertainty in Calculated Bundle Power Uncertainty of TIP Signal Nodal Uncertainty Table 5. Power Distribution Uncertainties lVerified Information) Page 25 of 26

NON-PROPRIETARY INFORMATION Class I (Public)

GNF Attachment Table 6. Critical Power Uncertainties Table 6. Critical Power Uncertainties ýVerified Information) Page 26 of 26

Retrieved from "https://kanterella.com/w/index.php?title=ML13316B110&oldid=2635529"