ML20073L650

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Rev 0 to SA-CA-94-0002-M, River Bend Station,Cycle 6 Colr
ML20073L650
Person / Time
Site: River Bend 
Issue date: 06/09/1994
From:
ENTERGY OPERATIONS, INC.
To:
Shared Package
ML20073L638 List:
References
SA-CA-94-0002-M, SA-CA-94-0002-M-R00, SA-CA-94-2-M, SA-CA-94-2-M-R, NUDOCS 9410130232
Download: ML20073L650 (19)
v • d • e


Text

o SA-CA-94-0002-M o

E"9" 1 UI 19 RBS CYCLE 6 COLR Rev. O RIVER BEND STATION, CYCLE 6 CORE OPERATING LIMITS REPORT (COLR) R E C EIV E D JUNE 1994 sO PREPARED By:

O w AcN eo 7 p 3 Date:

8 - d -9 4L Sr. Nuc ear Safety Engineer d /kY 48dMd889 Dates REVIEWED BY:

u Nuclea fety Engineer

]danNgar - 3afety in Engineering h^

k -]-

APPROVED BY:

NM Datet Ana Lysi APPROVED BY:

D kI Dates b~)~

Director,Ngi'Ifeering River Bend Nuclear Station APPROVED BY: DRD Dates (o 9 '/

Facilities Review Committee River Bend Nuclear Station 9410130232 941007 DR ADCCK 05000' 8

SA-CA-94-0002-M A

Page 2 of 19 RBS CYCLE 6 COLR Rev. O LIST OF EFFECTIVE PAGES Page(s)

Revision 1-19 0

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Page 3 of 19 RBS CYCLE 6 COLR Rev. O INTRODUCTION AND

SUMMARY

This report provides the values of the AVERAGE PLANAR LINEAR HEAT GENERATION RATE (APLHGR) limits, the core flow dependent MINIMUM CRITICAL POWER RATIO (MCPR) limits, MCPRg, the thermal. power dependent MCPR limits MCPR the LINEAR HEAT GENERATION RATE (LHGR) limits,andthekEACTOR PROTECTION SYSTEM (RPS) response time for APRM thermal time constant for River Bend Station, Cycle 6 as required by Technical Specification 6.9.3.1.

Per Technical Specificationsa6.9.3.2 and 6.9.3.3, these values have been determined using NRC-approved methodology and are established such that all applicable limits of the plant safety analysis are met.

1 I

SA-CA-94-0002-M Page 4 of 19 RBS CYCLE 6 COLR Rev. O Tj_CENICAL SPECIFICATION 3.2.1 POWER DISTRIBUTION LIMITS AHEAGE._ PLANAR LINEAR HEAT GENERATION RATE The limiting APLEGR value for the most limiting lattice (excluding natural uranium) of each fuel type as a function of AVERAGE PLANAR EXPOSURE is given in Figures 1, 2,

3, 4,

5, 6,

7 and 8.

These values were determined with the SAFE /REFLOOD LOCA methodology described in GESTAR-II (Reference 1).

Core location by fuel type is provided in Figure-11, which is a modification of the reference core loading pattern in Reference 3 to reflect the as-loaded core configuration described in Reference 5.

These figures are used if alternate calculations are required.

The limits of these figures shall be reduced to a value of 0.84 times the two recirculation loop operation limit when in single loop operation (Reference 4).

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SA-CA-94-0002-M Page 5 of 19 RBS CYCLE 6 COLR Rev. O TECHNICAL SPECIFICATION 3.2.3 POWER _ DISTRIBUTION LIMITS MINIMUM CRITICAL POWER RATIO The MCPR limits for use in Technical Specification 3.2.3 for MCPRg and MCPRg are shown in Figures 9 and 10.

These values were determined with the GEMINI methodology and GEXL-PLUS critical power ratio correlation described in GESTAR-II (Reference 1) and are consistent with a Safety Limit MCPR of 1.07.

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SA-CA-94-0002-M Page 6 of 19 RBS CYCLE 6 COLR Rev. O TECHNICAL SPECIFICATION 3.2.4 POWER DISTRIBUTION LIMITS LINEAR HEAT GENERATION RATE The LHGR limits for use in Technical Specification 3.2.4 are 14.4 kw/ft for GE8x8EB fuel and 13.4 kw/ft for all other fuel types.

The GE8x8EB fuel consists of fuel types GE88-P8SQB322-8GZ-120M-4WR-150-T, GE8B-P8SQB322-9GZ-120M-4WR-150-T, GE89-P8SQB333-10GZ-120M-4WR-150-T, GE88-P8SQB331-11GZ-120M-4WR-150-T, GE88-P8SQB334-10GZ-120M-4WR-150-T, GE8B-P8SQB334-10GZ2-120M-4WR-150-T and GE8B-P8SQB334-11GZ-120M-4WR-150-T.

Core location by fuel type is provided in Figure 11.

The higher limit for GE8X8EB fuel is proprietary to GE and does not appear in Reference 1.

The NRC SER on the GE8B design (Reference 2) recognizes the change to the LHGR limit, and the proprietary value is found in References 18 and 19 of Reference 2.

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SA-CA-94-0002-M Page 7 of 19 RBS CYCLE 6 COLR Rev. O TECHNICAL SPECIFICATION. TABLES 3.3.1-2 and 4.3.1.1-1 The simulated thermai power time constant for use in Technical Specification Table 3.3.1-2, Footnote ** is:

62 0.6 seconds.

The maximum simulated thermal power time constant for use in Technical Specification surveillance Table 4.3.1.1-1 is:

6.6 seconds a

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t SA-CA-94-0002-M l

Page 8 of 19 RBS CYCLE 6 COLR Rev. 0 ERF_KEENCES 1)

NEDE-24011-P-A, " General Electric Standard Application for Reactor Fuel," (latest approved version).

2)

Letter, C.O.

Thomas to J.S. Charnley, " Acceptance for Referencing of Licensing Topical Report," NEDE-24011-P-A-6, Amendment 10, General Electric Standard Application for Reload Fuel, May 28, 1985.

3)

Document 23A7244, Revision 0,

" Supplemental Reload Licensing Report for River Bend Station Reload 5, Cycle 6," May 1994.

1 4)

" Single-Loop Operation Analysis for River Send Station, Unit l

1," NEDO-31441, May 1987.

l 5)

Letter, Scott Young to Gary Scronce, "RF5 Core Alterations, I

LPRM Replacements, and Control Blade Replacements," RXE 94-

)

058, Rev.

1, May 27, 1994.

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SA-CA-94-0002-M Page 9 of 13 RBS CYCLE 6 COLR 1

Rev.O FIGURE 1. MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR)VERSUS AVERAGE PLANAR EXPOSURE BP88RB299 14 i

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SA Fage 10 of 19 cA-94-0002-M RBS CYCLE 6 COLR Rev.O FIGURE 2. MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR)VER8US AVERAGE PLANAR EXP08URE GE88 P8808322 4GZ 120 M4WR 154 T 14 X

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SA-CA-94-0002-M Pago 11 of 19 RBS CYCLE 6 COLR Rev.0 FIGURE 3. MAXIMUM AVERAGE PLANAR UNEAR HEAT l

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SA-CA-94-0002-M Pago 12 of 19 RBS CYCLE 6 COLR Rev.O FIGURE 4 MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR)VERSUS AVERAGE PLANAR EXPOSURE GEOS#8SQ833310GZ 128-M4WR 150 T 14 I L mr M :

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SA-CA-94-0002-M Pcg313 of 19 RBS CYCLE 6 COLR Rev.0 FIGURE 5. MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR)VERSUS AVERAGE PLANAR EXPOSURE GE88 PSSGB331 110212044WR 150 T 14 i

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SA-CA-94-0002-M Page 16 of 19 RBS CYCLE 6 COLR Rev.O FIGURE 8. MAXIMUM AVERAGE PLANAR UNEAR HEAT GENERATION RATE (MAPLHGR)VERSUS AVERAGE PLANAR EXPOSURE GEOS P88QB3341102128 M4WR 158 T 14 f

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