ML20043H001

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Rev 1 to, Core Operating Limits Rept for Unit 2,Cycle 1.
ML20043H001
Person / Time
Site: Limerick  Constellation icon.png
Issue date: 05/15/1990
From: Carmody J, Dennin E, Rubino L
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
Shared Package
ML20043G999 List:
References
PECO-COLR-L2R, PECO-COLR-L2R-R1, PECO-COLR-L2R0, PECO-COLR-L2R0-R01, NUDOCS 9006210425
Download: ML20043H001 (16)
v • d • e


Text

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PECO Fuel Management Section PECO-COLR-L2RO L2R0 Core Operating Limits Report Page 1, Rev. 1 CORE OPERATING LIMITS REPORT FOR

, LIMERICK GENERATING STATION UNIT 2 CYCLE 1 r

Prepared By: 6. [-)m1 - Date: myif</fo E.P. Dennin Engineer Reviewed By: b [a. -d Date: 5/Ir/9e

  1. O J.M. Carmody Supervising Engineer .

Approved By: /[ Date:

d NN L.F. Rubino Superintendent Fuel Management Section l

1 9006210425 900612 PDR- ADOCK 05000352 PNV ,a

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PECO Fuel Management Section PECO-COLR-L2RO L2RO Core Operating Limits Report Page 3, Rev. 1 INTRODUCTION AND

SUMMARY

This report provides the cycle-specific parameter limits for: Average Planar Linear Heat Generation Rate ( APLHGR) ; Minimum Linear Critical Heat Power Ratio Generation Rate(MCPR);

(LHGR); Flow Adjustment and Rod Factorflow Block Monitor (Kr);iased b

upscale and high flow clamped setpoints for Limerick Generating Station Unit 2, Cycle 1. These values have been determined using NRC-approved methodology and are established such that all 1

applicable limits of the plant safety analysis are met.

This report is submitted in accordance with Technical Specification 6.9.1 of Reference (1). Preparation of this report was performed in accordance with PECO Nuclear Group Procedure NP-11F122. .

APLHGR LIMIT The limiting APLHGR value of each fuel type as a function of AVERAGE PLANAR EXPOSURE is given in Figures 1 through 5. Figures 1 through 5 are used as specified in Technical Specification  !

3.2.1. The reduction factor for use during single recirculation loop operation is given in Table 1.

MCPR LIMIT The MCPR value for use in Technical Specification 3.2.3 is }

given in either Figure 6 or Figure 7 as determined by Table 2.

The Kg core flow adjustment factor for use in Technical Specification 3.2.3 is given in Figure 8. ,

ROD BLOCK MONITOR SETPOINT The N value for the RBM flow biased upscale and high flow clamped setpoints for use in Technical Specificttion 3.3.6 is given in Table 3.

1 l

if PECO Fuel Management Section PECO-COLR-L2RO

-L2RO Core _ Operating Limits Repott Page 4, Rev. 1 LINEAR HEAT GENERATION RATE The LHGR value for use in Technical Specification 3.2.4 is given in Table 4.

REFERENCE 1): " Technical Specifications and Bases for Limerick Generating Statc a:" Unit 2", Docket No. 50-353 Appendix A'to License No. NP;. ^t 1

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1 PECO Fuel Management Section PECO COLR L2RO L2RO Core Operating Umits Report - Page 10 Rev.1  :

1.44 1.44 1.42 - - - - -

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TECHNICAL SPECIFICATION 3.2.3 3,4 1.38 - - - - - - - - - - - - - - - - - - --

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WITH EOC RPT,100% CORE FLOW I 1.22 1.22 I

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PECO Fuel Management Section - PECO COLR.L2RO i

. L2RO Core Operating Umits Report Page 11, Rev. i 1,44 1.44 i 1,42 ---

THIS FIGURE IS REFERRED TO BY - - - -

- 1.42

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TECHNICAL SPECIFICATION 3.2.3 1.4 - -- - - - -

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1.22 1.2 1.2 0 0.1 0.2 0.3 0.4 0.5 0.6 . 0.7 0.8 0.9 - 1

.' c Note: These Umits Apply To Both Two Recirculation Loop and Single Recirculation Loop Operation DEFINC'ONS:

[Qf . INCREASED CORE FLOW (UP TO 105% RATED) fEQQ_S FEEDWATER HEATING OUT OF SERVICE THROUGHOUT CYCLE (UP TO 60* F TEMP. REDUCTION; ACHIEVED BY REMOVAL OF FEEDWATER HEATER (S))

FFWTR - FINAL FEEDWATER TEMPERATURE REDUCTION AT END-OF CYCLE (UP TO 60* F TEMP REDUCTION: ACHIEVED BY REMOVAL OF ALL 6th STAGE HEATERS)

MINIMUM CRITICAL POWER RA'fl0 (MCPR) VERSUS T AT MAXIMUM CORE FLOW s 105% RATED AND MAXIMUM FEEDWATER TEMPERATURE REDUCTION s 60'F AT RATED CONDITIONS FIGURE 7

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SCOOP TUBE SETPOeNT CALIfM1A110N POStIBONED SO ifIAT I '

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' 1.0 Ft OW MAXM - 1025% ' k FtOW MAXIMUM - 1010%

FLOW MAXIMUM - 112 0%

FL OW MAXIMUM - 117.0%

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.h g I ,, 5 PECO Fuel Management Section- PECO-COLR-L2RO L2RO Core Operating Limits Report Page 13, Rev '1 l

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. TABLE 1 I

-SINGLE LOOP REDUCTION FACTOR -!

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PECO Fuel. Management Section PECO-COLR-L2RO :l

L2RO' Core Operating Limits-Report Page 14, Rev. 1 -

TABLE 2 1

Minimum Critical Power Ratio (MCPR)

Versus Plant Operating condition L

Rated Feedwater Maximum Core Flow MCPR  :

. Temperature _ Reduction (% of rated) Figure No.  !

From the Nominal',

delta T* (*F)

A O <100 Figure'6

$60- $105 Figure 7 THIS FIGURE IS REFERRED TO BY TECHNICAL SPECIFICATION 3.2.3 i

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  • This delta T refers to the: planned reduction of-feedwater-temperature-at rated conditions from' nominal' rated feedwater I

temperature during the prolonged removal of.feedwater heaters from service.

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PECO. Fuel Management Section- PECO-COLR-L2RO-L2RO Core Operating. Limits Report Page 15,-Rev. 1

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i j TABLE 3 ROD BLOCK MONITOR SETPOINT N=107 L

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TECHNICAL SPECIFICATION 3.3.6 i

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PECO Fuel: Management Section PECO-COLR-L2RO L2RO Core. Operating Limits Report. Page 16,-Rev. 1.

3

- TABLE 4 F

i LINEAR HEAT GENERATION RATE LIMIT MAXIMUM-VALUE 13.4 hM/ft

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