ML20134H169
| ML20134H169 | |
| Person / Time | |
|---|---|
| Site: | River Bend |
| Issue date: | 08/31/1996 |
| From: | Oliphant T ENTERGY OPERATIONS, INC. |
| To: | |
| Shared Package | |
| ML20134H145 | List: |
| References | |
| NUDOCS 9611130556 | |
| Download: ML20134H169 (21) | |
Text
. -.-
i Paga 1 of 20 RBS CYCLE 7 COLR Revision 1 RIVER BEND STATION, CYCLE 7 i
CORE OPERATING LIMITS REPORT (COLR)
August,1996
/
PREPARED BY:
Thomas
. Oliphant Date:
- ///f(
i Responsible Engineer i
REVIEWED BY:
[
d377 Date: kN Review Engineer APPROVED BY:
sf
[p Date: //A+8%
Manager - Safety & Engineering Analysis I
APPROVED BY:
i Date: " ^ h D Director, Engineering '
~
River Bend Nuclear Station APPROVED BY:
m e O/W' Date:
<f/2L/f4 Fgilities Review Committee River Bend Nuclear Station x
9611130556 961105 DR ADOCK 0500 8
PagQ 2 of 20 RBS CYCLE 7 COLR Revision 1 INTRCDUCTION 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, MCPRp, the thermal power dependent MCPR limits MCPRp, the LINEAR HEAT GENERATION RATE (LHGR) limits, APRM Gain and setpoint information, and the REACTOR PROTECTION SYSTEM (RPS) response time for APRM thermal time constant for River Bend Station, Cycle 7 as required by Technical Specifications. Technical Specifications require these values be determined using NRC-approved methodology and are established such that all applicable limits of the plant safety analysis are met.
Control Rods The River Bend core utilizes both GE original equipment and ABB CR-82M bottom entry cruciform control rods. These Control Rod designs are discussed in more detail in reference 7.
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1
j Paga 3 of 20 RBS CYCLE 7 COLR i
Revision 1 TECHNICAL SPECIFICATION 3.2.1 POWER DISTRIBUTION LIMITS AVERAGE PLANAR LINEAR HEAT GENERATION RATE (APLHGR)
The limiting APLHGR value for the most limiting lattice (excluding natural l
uranium) of each fuel type as a function of AVERAGE PLANAR EXPOSURE is given in Figures 1,2,3,4,5,6 and 7. These values were j
determined with the SAFE /REFLOOD LOCA methodology described in i
GESTAR-II (Reference 1). Core location by fuel type is provided in Figure 12 and is the reference core loading pattern in reference 3. These figures are used if alternate calculations are required. The limits of these i
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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e
Pag 3 4 of 20 RBS CYCLE 7 COLR Revision 1 TECHNICAL SPECIFICATION 3.2.2 1
POWER DISTRIBUTION LIMITS MINIMUM CRITICAL POWER RATIO (MCPR)
The MCPR limits for use in Technical Specification 3.2.2 for flow dependent MCPR (MCPRp) (Reference 3), power dependent MCPR (MCPRp) (Reference 3) are shown in Figures 8,9,10 and 11. These values were determined with the GEMINI methodology and GEXL-PLUS l
critical power ratio correlation described in GESTAR-II (Reference 1) and are consistent with a Safety Limit MCPR of 1.10.
l
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Page 5 of 20 RBS CYCLE 7 COLR Revision 1 TECHNICAL SPECIFICATION 3.2.3 POWER DISTRIBUTION LIMITS i
LINEAR HEAT GENERATION RATE (LHGR)
The LHGR limits for use in Technical Specification 3.2.3 are 14.4 kw/ft for j
GE8x8EB and GE11 (Reference 5). The GE8x8EB fuel consists of fuel types: GE88-P8SQB333-10GZ-120M-4WR-150-T, GE88-P8SQB334-10GZ-120M-4WR-150-T, GE88-P8SQB334-10GZ2-120M-4WR-150-T and GE88-P8SQB334-11GZ-120M-4WR-150-T. The GE11 (9x9) fuel consists of GE11-P9SUB354-14GZ-120T-146-T, GE11-P9SUB354-13GZ-120T-146-T and GE11-P9SUB353-10GZ-120T-146-T. Core location by i
fuel type is provided in Figure 12.
l
..- __~.- -.
Paga 6 of 20 RBS CYCLE 7 COLR Revision 1 TECHNICAL SPECIFICATION TABLE 3.3.1.1-1 The simulated thermal power time constant for use in Technical Specification Table 3.3.1.1-1, SR 3.3.1.1.14, is (Reference 6):
6
- 0.6 seconds.
The maximum simulated thermal power time constant for use in Technical Specification surveillance Table 3.3.1.1-1, SR 3.3.1.1.14 is:
6.6 seconds l
I l
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. =.
Pag 9 7 of 20 I
RBS CYCLE 7 Col.R Revision 1 TECHNICAL SPECIFICATION 3.2.4 4
POWER DISTRIBUTION LIMITS Averaae Power Ranae Monitor (APRM) Gain and Setooints The APRM Gain and Setpoint information below was transferred from Technical Specifications as part of implementation of Improved Technical I
l Specifications in October of 1995. For APRM flow biased simulated thermal power-high scram trip setpoints and/or the flow biased neutron flux-upscale control rod block trip setpoint adjustment for the condition T <
{
1.0, the following relationships apply:
1 Two Recirculation Loop Operation l
Trio Setooint Allowable Value S s (0.66W + 48%)T S s (0.66W + 51%)T Saa s (0.66W + 42%)T Sne s (0.66W + 45%)T Single Recirculation Loop Operation i
Trio Setooint Allowable Value S s (0.66W + 42.7%)T S s (0.66W + 45.7%)T Sns s (0.66W + 36.7%)T Saa s (C.66W + 39.7%)T where:
S and Sne are in percent of rated thermal power, W = Loop recirculation flow as a percentage of the loop recirculation flow which produces a rated core flow of 84.5 million Ibs/hr, T is defined in Technical Specification Basis section B 3.2.4 x
t
Paga 8 of 20 RBS CYCLE 7 COLR Revision 1 REFERENCES 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) 24A5188, Rev. 2 " Supplemental Reload Licensing Report for River Bend Station Reload 6/ Cycle 7" July 1996.
4)
" Single-Loop Operation Analysis for River Ben'd Station, Unit 1," NEDO-31441, May 1987.
5)
FC# 818R46," RIVER BEND RELOAD 6 DESIGN EXPOSURE CYCLE
SUMMARY
" June 1995.
6)
Letter, R.E. Kingston to G. W. Scronce, " Time Constant Values for
~
Simulated Thermal Power Monitor
- GFP-1032 November 30,1995.
7)
Page 9 of 20 a
RBS CYCLE 7 COLR Revision 1 FIGURE 1 MAXIMUM AVERAGE PLANAR LINEAR HEAT i
l GENERATION RATE (MAPLHGR)VERSUS AVERAGE PLANAR i
EXPOSURE GE88 P8SQB333-10GZ 120-M-4WR-150-T 1
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10 20 30 40 50 AVERAGE PLANAR EXPOSURE (GWd/ST)
m Page 10 of 20 J
RBS CYCLE 7 COLR Revision 1 FIGURE 2 MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR EXPOSURE GE88-P8SQB33410GZ-120 M-4WR 150-T j
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1 PagG 11 of 20 RBS CYCLE 7 COLR i
Revision 1 3
FIGURE 3 MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR EXPOSURE GE8B-P8SQB334-10GZ2-120 M-4WR-150-T 3
14 i
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Page 12 of 20 RBS CYCLE 7 COLR Revision 1 1
FIGURE 4 MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR EXPOSURE GE88-P8SQB334-11GZ-120 M-4WR-150-T b
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Pag 913 of 20 RBS CYCLE 7 COLR Revision 1 FIGURE 5 MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR EXPOSURE GE11-P9SUB35414GZ-120T-146-T 14 1
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Pag 914 of 20 RBS CYCLE 7 COLR Revision 1 i
FIGURE 6 MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR EXPOSURE GE11-P9SUB354-13GZ-120T-146-T 14 5
13 a
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Page 15 of 20 RBS CYCLE 7 COLR Revision 1 FIGURE 7 MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR EXPOSURE GE11-P9SUB353-10GZ-146-T 14
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l Page 16 of 20 RBS CYCLE 7 COLR j
Revision 1 i
l FIGURE 8 OPERATING LIMIT MCPR (MCPRp)
VERSUS CORE FLOW FOR EXPOSURES LESS THAN EOC-3350 1.800 i
i i
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C (25,1.[35).
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l Page 17 of 20 RBS CYCLE 7 COLR Revision 1 j
FIGURE 9 OPERATING LIMIT MCPR (MCPRp)
J' VERSUS CORE FLOW FOR EXPOSURES i
GREATER THAN EOC-3350 1.800
[(25,1.735)i l
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1 000 20 30 40 50 60 70 80 90 100 110 120 core FLOW (W), % OF RATED CORE FLOW
Page 18 of 20 RBS CYCLE 7 COLR
.i Revision 1 l
FIGURE 10 OPERATING LIMIT MCPR (MCPRp)
VERSUS THERMAL POWER FOR EXPOSURES LESS THAN EOC-3350 i
1.80 l
i
- 40,1.758)i i
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i i+
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1.00 20 30 40 50 60 70 80 90 100 110 120 THERMAL POWER, % OF RATED THERMAL POWER 6-
Page 19 of 20 RBS CYCLE 7 COLR Revision 1 FIGURE 11 OPERATING LIMIT MCPR (MCPR,)
VERSUS THERMAL POWER FOR EXPOSURES t
l GREATER THAN EOC-3350 j
i 1.80
,'s l
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~(25,1.768) 1.70
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Page 20 of 20 RBS CYCLE 7 COLR Revision 1 FIGURE 12 REFERENCE CORE LOADING PATTERN sa CD(DE(DIDID(u m
--b ghbMM(D 5
II
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9 GE Nuclear Energy Rochardi Khngston July 23,1996 cc: C. W. Bridges REK:96-235 H. A. Goodman i
GFP-1083 P. A. Sicard R. M. Wilkins RBS-PPF Entergy Operations, Inc..
Attn: Mr. Gary W. Scronce Coordinator, Fuel Fabrication River Bend Station P. O. Box 220 St. Francisville, LA 70775
Subject:
Correction Version of Supplemental Reload License Report (SRLR) for River Bend Cycle 7, Rev. 2 1
Reference Letter, GFP-1077, REK:96 209," Supplemental Reload License Report (SRLR) for j
River Bend Cycle 7, Rev. 2", dated 7/3/96 File No.: G25.4.3 i
i
Dear Mr. Scronce:
This letter is to document the transmittal of a corrected version of the subject SRLR. Figures 51 and 52 of Appendix H were modified to reflect a BOC to EOC-3350 mwd /st Operating Limit MCPR of 1.28 for Gell fuel. This 1.28 limit was set by ECCS considerations and did not require i
the 0.03 ACPR increase from the SLMCPR change. With the revised SLMCPR of 1.10, all other j
AOOs produce an Operating Limit MCPR equal to or less than 1.28 for this exposure range.
1 Bill Russell has previously sent these to you. Please destroy earlier copies of this revision.
Very truly yours,
'b yb-l R. E. Kingston Senior Fuel Project Manager M/C A33, (910) 675-6192 1
rk attachment 4
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