ML20135D410

GGNS COLR Safety-Related

ML20135D410
Person / Time
Site:	Grand Gulf
Issue date:	11/18/1996
From:	ENTERGY OPERATIONS, INC.
To:
Shared Package
ML20135D404	List: ML20135D401 ML20135D410
References
GGNS-MS-48.0, GGNS-MS-48.0-R04, GGNS-MS-48.0-R4, NUDOCS 9612090366
Download: ML20135D410 (26)

Text

. . - . .- _ . .. .- .- _.

Standard No.: GGNS-MS-48.0 Revision: 4 i

Date: Nov.I8,19%

I 4

l Grand Gulf Nuclear Station Core Operating Limits Report

,' Safety-Related 1

I 4

9612090366 961203 PDR ADOCK 05000416 P PDR

Standard No.: GGNS.MS_48.0 l Page: ii of vi Revision No.: 4 4

GRAND GULF NUCLEAR STATION NUCLEAR PLANT ENGINEERING  !

1 REVIEW AND APPROVAL SHEET STANDARD NO.: GGNS.MS.48.0 REVISION: 4

, STANDARD TITLE: Core Operating Limits Report i

This document specifies items related to nuclear safety YES [X] NO[]

4 Signatures certify that the above standard was originated, verified, reviewed or waived and approved as noted below:

ORIGINATED BY: b. DATE: I NT(o VERIFIED BY:

y -- - -

% DATE: //,/8/f6, 1 REVIEWED BY: kJb & MDv Cognizant Group Supervisor DATE: "[Iki b NPE SECTION REVIEWED BY REVIEW WAIVED BY DATE ELECTRICAL /I&C f _

ff//g/pg MECHANICAL / CIVIL

_h H[if[qb SAFETY ANALYSIS b & /"N v////4 ANII: ^#b DATE:

(Insert N/A if not applicable)

APPROVED BY: DATE: il[I ib Responsible Manager i

Standard No.: GGNS-MS-48.0 Page: iii of vi

Revision No.

4 l SAFETY EVALUATION APPLICABILITY REVIEW FORM i

j A) Document Evaluated: Standard GGNS-MS-48.0, Revision 4

[

~

B) ' Description of the Proposed Change: Per GNRI-93-008, Amendment 106 to the Grand i Gulf Operating License, Entergy committed to removing certain reactor physics parameters from the Technical Specifications and placing them in a separate report i prepared for each fuel cycle. Standard GGNS-MS-48.0 is the Core Operating Limits Report (COLR) and establishes these parameters. Revision 4 to GGNS-MS-48.0 reports .

! the Cycle 9 core operating limits.

PRE-SCREENING

) Check the applicable boxes below. If any of the boxes are checked, neither a safety evaluation

, applicability review nor a safety evaluation is necessary and steps C, D, E, and F may be i

skipped. The preparer and reviewer must sign at the bottom of the form.

l _

The change is editorial only.

2

} _

10CFR50.54 applies to the change instead of 10CFR50.59.

4 X An approved safety evaluation cove:ing all aspects of this subject already exists.

i Reference SE# 96-0115-R00 e

The change, in its entirety, has been approved by the NRC.

Reference:

! l l _

The change is an FSAR change that meets the exclusion criteria outlined in Site Directive

] G4.803 i

Safety Evaluation Applicability Review l

l If any of the following questions are answered "yes", then a full 50.59 Safety Evaluation must be

completed.

i C)- Does the proposed change or activity represent a change to the Technical Specifications?

YES Explain:

NO i

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d

Standard No.: GGNS-MS-48.0 Page: iv of vi i l

Revision No.: 4 l

D) Does the proposed change or activity represent:

(1) A change to the facility which alters, or has the potential to alter, the information, operation, function or ability to perform the function of a system, structure or component described in the SAR?

! YES Explain:

l NO I

(2) A change to a procedure which alters, or has the potential to alter, a procedure ~

described, outlined or summarized in the SAR?

YES Explain:

NO (3) A test or experiment not described in the SAR or which requires that a system be i operated in an abnormal manner that is not described or previously analyzed in  !

the SAR7 YES Explain:  !

NO l

l PREPARER '

k. ~

Sq ,Q. N\T[9(o Name $ Title ' Da'te REVIEWER' N "fd N . -S r.

Job Title

"/f tl9 b Date Name If the preparer performed an applicability review, the reviewer should check below to indicate by which means the independent review reached the same conclusions. ,

X_ Reviewed the applicability review documentation.

Completed an independent applicability review.

Performed a verbal review with the preparer.

I

l .

Standard No.: GGNS-MS-48.0 Page: v of vi Revision No.: 4 REVISION STATUS SHEET STANDARD REVISION

SUMMARY

REVISION ISSUE DATE DESCRIPTION 0 April 1,1993 Issued for Cycle 6 1 November 12,1993 Issued for Cycle 7 2 August,26,1994 Revised for Cycle 7 to update references for QDR 0159-94 3 May 18,1995 Issued for Cycle 8 4 Nov.19,14% Issued for Cycle 9 PAGE REVISION STATUS PAGE NO. REVISION PAGE NO. REVISION

~i 4 1 4 ii 4 2 4 iii 4 3 4 iv 4 4 4 v 4 5 4 vi 4 APPENDIX / ATTACHMENT STATUS APPENDIX NO. REVISION ATTACHMENT NO. REVISION 1 0 2 0 3 0 i

D

- .- .. . - - . . . - . . . _ . . _ . _ _ . _ - . _ _ = _ . - - _ . - . _ . . . . ._

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Standard No.: GGNS-MS-48.0 Page: vi of vi Revision No.: 4 i

e i

3 TABLE OF CONTENTS 1.0PUMOSE..........................................................................................................................1

'l 2.0 SCOPE.............................................................................................................................2

3.0 REFERENCES

.....................................................................................................................3 4.0DEFINIBONS....................................................................................................................4 4 .

5.0 G EN E ML EQUI EMEMS . . . . ... .. . . . .. ..... . .. . ............ . . . . . ... .. ... ......... . ... . ............ . . ... ........ .. 5

5.1 Average Planar Linear Heat Generation Rates .................................................. ............... 5 5.2 M inimum Critical Power Ratio . .. . ...... ... . . .... ... ...... . . ... ... . . .... .. .... . . ... ........ . .. . . . . .. . .. . .. .. .. .. .. ... . . 5 5.3 Linear Heat Generatio n Rate . ... .. ..... .. .... ......... . .. .. . . . .. ...... .. ... ..... ... . .. ..... . .. .... .. .... . . ...... ... .. . . . 5 I

5 .4 Appl i cabili ty . . . . . . . . . . .. .. . ... . .. .... . . ... . .. ... . .. .. . .. .. .. . .. . .. .... . . .. .. . . . .. . ... .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 a

J 4

4 i

l 4

F i-i I

4 4

)

eaa -

f \

Standard No.: GGNS-MS-48.0 l Page: 1 of 5 l Revision No.: 4 1 l

i' 1.0 PURPOSE i 1

l l On October 4,1988, the NRC issued Generic Letter 88-16 [1] encouraging licensees to remove l l cycle-specific parameter limits from Technical Specifications and to place these limits in a  !

formal report to be prepared by the licensee. As 1ong as the parameter limits were developed e

'with NRC-approved methodologies, the letter indicated that this would remove unnecessary burdens on licensee and NRC resources.

l l On October 29,1992, Entergy Operations submitted a Proposed Amendment to the Grand Gulf

Operating License requesting changes to the GGNS Technical Specifications to remove certain.

1 reactor physics parameter limits that change each fuel cycle [2]. This amendment committed to placing these operating limits in a separate Core Operating. Limits Report (COLR) which is .

j defined in Technical Specifications. This PCOL was approved by the NRC by SER dated i January 21,1993 [3].- l l The COLR is controlled via Mechanical Standard GGNS-MS-48.0. This standard is revised j .accordingly for each fuel cycle or remaining portion of a fuel cycle. Revision 4 of the COLR reports the Cycle 9 core operating limits.

]

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d l

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', Standard No.: GGNS-MS-48.0 t

Page: 2 of 5 Revision No.: 4 2.0 SCOPE As defined in Technical Specification 1.1, the COLR is the GGNS document that provides the core operating limits for the current fuel cycle. This document is prepared in accordance with Technical Specification 5.6.5 for each reload cycle using NRC-approved analytical methods.

The Cycle 9 core operating limits included in this report are: l

. the Average Planar Linear Heat Generation Rate (APLHGR),

e the Minimum Critical Power Ratio (MCPR), and e

the Linear Heat Generation Rate (LHGR) limit.

The cycle-specific MCPR safety limits are documented in Technical Specification 2.1.1.2.

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, Standard No.: GGNS-MS-48.0 Page: 3 of 5 l Revision No.: 4

3.0 REFERENCES

1

, This section contains the background and cycle-specific references used in the safety analysis of Grand Gulf Cycle 9.

BACKGROUND

REFERENCES:

i

1. MAEC-88/0313, Generic Letter 88-16, " Removal of Cycle-Specific Parameter Limits

from Technical Specifications", October 4,1988.

2. GNRO-92-00093, Proposed Am. ndment to Grand Gulf Operating License, PCOL-92/07, dated October 29,1992.

3. GNRI-93-0008, Amendment 106 to Grand Gulf Operating License, January 21,1993.

CURRENT CYCLE

REFERENCES:

4. General Electric 24A5384, Supplemental Reload Licensing Report for Grand Gulf Unit 1 Reload 8 Cycle 9, Rev. O, dated October 1996.

5. General Electric 24A5384AA, Lattice Dependent MAPLHGR Report for Grand Gulf Unit 1 Reload 8 Cycle 9, Rev. O, dated October 1996.

6. ANF-88-152 (P)(A), Generic Mechanical Design for Advanced Nuclear Fuels 9x9-5 BWR Reload Fuel, dated November 1990.

7. EMF-94-186, Grand Gulf Unit 1 Cycle 8 Reload Analysis, dated December 1994.

8. GEXI 96-00484, R.E. Kingston to J.B. Lee, " Application of Single Loop Operation Safety Limit MCPR to Operating Limit MCPR", dated November 15,1996.

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Standard No.: GGNS-MS-48.0 Pege: 4 of 5 Revision No.: 4 4.0 DEFINITIONS

1. Average Planar Linear Heat Generation Rate (APLHGR) - the APLHGR shall be applicable to a specific planar height and is equal to the sum of the linear heat generation rates for all the fuel rods in the specified bundle at the specified height divided by the number of fuel rods in the fuel bundle.

2. Average Planar Exposure - the Average Planar Exposure shall be applicable to a specific planar height and is equal to the sum of the exposure of all the fuel rods in the specified bundle at the specified height divided by the number of fuel rods in the fuel bundle.

3. Critical Power Ratio (CPR) - the ratio of that power in the assembly, which is calculated by application of the fuel vendor's appropriate boiling correlation, to cause some point in the assembly to experience boiling transition, divided by the actual assembly operating power.

4. Core Operating Limits Report (COLR) - The Grand Gulf Nuclear Station specific document that provides core operating limits for the current reload cycle in accordance

~with Technical Specification 5.6.5.

5. Linear Heat Generation Rate (LHGR) - the LHGR shall be the heat generation per unit length of fuel rod. It is the integral of die heat flux over the heat transfer area associated with the unit length.

6. Minimum Critical Power Ratio (MCPR) - the MCPR shall be the smallest CPR which exists in the core.

7. MCPR Safety Limit - the minimum value of the CPR at which the fuel could be operated with the expected number of rods in boiling transition not exceeding 0.1% of the fuel rods in the core.

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Standard No.: GGNS-MS-48.0  ;

Page: 5 of 5 l Revision No.: 4 l 1

5.0 GENERAL REQUIREMENTS This section reports the Grand Gulf Cycle 9 core operating limits. As discussed in Technical l Specifications 3.2.1,3.2.2, and 3.2.3, these operating limits are applicable when the core thermal  !

power is greater than 25% of rated power.

)

5.1 Average Planar Linear Heat Generation Rates Consistent with Technical Specification 3.2.1, all APLHGRs for Siemens 9x9-5 bundles shall not exceed the limits reported in Attachment 1 as a function of exposure [7]. All APLHGRs for l gel 1 lattices shall not exceed the limits reported in Reference 5 as a function of exposure.

multiplied by the smaller of either the power-dependent or flow-dependent MAPLHGR factors reported in Attachment 1 [4]. For each GElI bundle type, Attachment I reports the MAPLHGR for the most limiting lattice at each exposure for reference purposes [4].

5.2 Minimum Critical Power Ratio Consistent with Technical Specification 3.2.2, the MCPR shall be equal to or greater than the limits reported in Attachment 2 as functions of power, flow, and exposure [4).

5.3 Linear Heat Generation Rate Consistent with Technical Specification 3.2.3, the LHGR shall not exceed the limits reported in Attachment 3 as a function of exposure as multiplied by the smaller of either the power- i dependent or flow-dependent LHGR factors reported in Attachment 3 [4,6].

5.4 Applicability These limits are applicable for operation in the Maximum Extended Operating Domain (MEOD) and with Feedwater Heaters Out of Service. For single-loop operation, the following additional requirements must be satisfied.

1. The APLHOR for the GE1I bundles shall not exceed the MAPLHGR limit as function of exposure reported in Reference 5 multiplied by 0.83

[4]. The APLHGR for the Siemens 9x9-5 bundles shall not exceed the MAPLHGR limit reported in Attachment 1 multiplied by 0.86 [4].

2. The MCPR shall be equal to or greater than the limits determined in accordance with Section 5.2 above multiplied by the ratio of the single-loop MCPR safety limit to the two-loop MCPR safety limit reported in Technical Specification 2.1.1.2 [8].

Standard No.: GGNS-MS-48.0, Rev. 4 '

Attachment 1, Rev. O

~

Page: I of 7 Cycle 9 Maximum Average Planar Linear Heat Generation Rate for Siemens 9x9-5 14

~(0.12.5) (20,12.5)

= -

12

=

5 33: 11 i

= 10 o_ {50,9.5) s 9 (55,9.0) i r

8 t 7 -

i 0 10 20 30 40 50 60 Average Planar Exposure (GWd/MTU) '

l i

I

. *i Standard No.: GGNS-MS-48.0, Rev. 4 -

Attachment 1, Rev. 0 .

Page: 2 of 7 -

Cycle 9 Maximum Average Planar Linear Heat Generation Rate for Limiting Lattice.of GE Bundle Type GE11-P9SUB355-15GZ-120T-146-T 13 ,

12 11 N

3 10 5

5 9 E

8 7 l i

6 -

l 0 10 20 30 40 50 60 Average Planar Exposure (GWd/MTU) i

Standard No.: GGNS-MS-48.0, Rev. 4 Attachment 1, Rev. 0 .

Page: 3 of 7 Cycle 9 Maximum Average Planar Linear Heat Generation Rate for Limiting Lattice of GE Bundle Type GE11-P9SUB371-12GZ1-120T-146-T 13 12 11 c

$ 10 -

5 5 9 9c

• 8 i

7 6  ;  :  :

O 10 20 30 40 50 60 Average Planar Exposure (GWd/MTU) h t

s _ . - _ . . _ _ _ _ _ _ . . - __.______--__-- - _ _ - - -. _ _ - - -- - - - - - - - - - - - - -

Standard No.: GGNS-MS-48.0, Rev. 4 -

Attachment 1, Rev. 0 .

Page: 4 of 7 -

Cycle 9 Maximum Average Planar Linear Heat Generat:3n Rate for Limiting Lattice of '

13 GE Bundle Type GE11-P9SUB391-13GZ-120T-146-T 12 11

=

$ 10 5 9 8

7 L

6 -- --+ + +

0 10 20 30 40 50 60 Average Planar Exposure (GWd/MTU)

,~. . _ .- . . ~ . . .- . - . . . . . - . . . . . - . - - - . - - - .. - - _ _ .-

9 4 StIndard No.: .GGNS-MS-48.0, Rev. 4 Attachment 1, Rev. O '

Page: 5 of 7- -

MAPLHGRs for Limiting Lattices of GEli Bundles GE Bundle Type GE Bundle Type GE Bund Type Exposure GE11-P9SUB355- GE11-P9SUB371- GE11-P9SUB391-(GWd/MTU) 15GZ-120T-146-T 12GZ1-120T-146-T 13GZ-120T-146-T 0.00 10.68 11.09 10.97 0.22 ~

10.74 11.16 11.01

~~~ 1. ~10 10.87 11.50 11.12 2 20 11.10 11.50 11.25 3.31 . . -.- _.11.38 11.72 11.39 5.51 11.76 12.02 11.61

'- 6.61 11.91 12.13 11.71 7.72 12.06 12.23 11.82

~~~5.82 12.23 12.34 11.92 9.92 12.33 12.45 12.03 11.02 12.43 12.55 12.12 i5.75 -' i2.35 12.57' 12.08 -

16 53 12.10 12.32 11.90

_ 19.29 11.73 11.96 11.63 22.05 11.35 11.60 11.32 -

27.56 10.61 10.88 10.70 33.07 9.89 10.17 10.09 38.58 9.19 9.46 9.48 44.09 8.53 8.76 P.P6 49.60 ~

7.89 8.06 8.22 55.12 7.26 7.37 7.56 60.63 6.62 6.68 6.86 62.76 6.58 62.96 6.38

~~~~~53.51 6.28

_ - - - - - _ _. - _ - _ _ _ _ - _ _ _ _ _ . _ . _ _ - _ - _ . . - - . _ . _ _ - - - - --- , - . - --~-r n 2 - _- -- -_-_a

i i

Standard No.: GGNS-MS-48.0, Rev. 4 -

Attachment 1, Rev. 0 ~

of Page: 6 7 -

Cycle 9 Power-Dependent MAPLHGR Factor for GE11  !

I 1.1 (70,1.0) (300,1.0) 1 i

0.9

'E U '

5 0.8 t e

=E 0.7

• I 0.6 = _

t (25,0.6) (40, 0.6) 0.5 +  :  :  : + ,

O 10 20 30 40 50 60 70 80 90 100 110 Power (% rated)

Standard No.: GGNS-MS-48.0, Rev. 4 Attachment 1, Rev. 0 '

Page: 7 of 7 -

Cycle 9 Flow-Dependent MAPLHGR Factor for GE11 1.1 m (68,1.0) (105, 1.0) 1 ,

e 0.9 U

2 Sh i

2 0.8 -

= _

(20, 0.751) (30, 0.751) 0.7 0.6 '

+- '

a  :  :

0 10 20 30 40 50 60 70 80 90 100 110 Core Flow (% rated)

Standard No.: GGNS-MS-48.0, Rev. 4 Attachment 2, Rev. 0 ,

Page: 1 of 5 t

Cycle 9 Power-Dependent MCPR Limit for GE11 BOC - EOC-3307 mwd /M'T i 2.0 - > 50% Core Flow N (25.1.87) (40,1.sa 1.9 .

1.8 _ ,,

,- ' ' (25,1.77) (40,1.77) (50,1.71) g

< 50% Core Flow (60,1.65) g 1.6 I 5 1.5 - FU' '~8')

05 2 1.4 - (go, ,,37) 1.3 _

1.2 (w,1.26) (100,1.26) ,

i 1.1 1.0  : +

i- " '

O 10 20 30 40 50 60 70 80 90 100 110 Core Power (% rated) t i

\

Standard No.: GONS-MS-48.0, Rcv. 4 Attachment 2, Rev. 0 ,

Page: 2 of 5 Cycle 9 Power-Dependent MCPR Limit for GE11 EOC-3307 mwd /MT - EEOC 2.0 > SO% Core Flow

' - {25,1.87) (40,187) 1.9 ,

1.8 _ ..

y ' (25,1.77) (40,1.77; (50. 1.71) g

< 50% Core Flow (60,1.65) g 1.6 51.5 (7U' 8')

S 2

1.4 80,1.37)

(90,1.315) 1.3 (100,1.26) 1.2 1.1 1.0 +

+- *  :  : 4 0 10 20 30 40 50 60 70 80 90 100 110 Core Power (% rated)

Standard No.: GGNS-MS-48.0, Rev. 4 -

Attachment 2, Rev. 0 ,

~ -

Page: 3 of 5 Cycle 9 Power-Dependent MCPR Limit for Siemens 9x9-5 BOC - EOC-3307 mwd /MT 2.1 > 50% Core Flow 5 (25,1.99) (40,1.99) 2.0 _

1.9 -

' (25,1.89) (40,1.89) (50,1.82) 1.8

< 50% Core Flow (60,1.75) 1.7 2

- 1.6 1.5 I7 ' 8'I 1.4 (80,1.385) 1.3 _

(9626) 600,1.26) 1.2 1.1 1.0 *

:  :  :  : + 4 0 10 20 30 40 50 60 70 80 90 100 110 Core Power (% rated) 1

Standard No.: GGNS-MS-48.0, Rev. 4 Attachment 2, Rev. 0 .

Page: 4 of 5 Cycle 9 Power-Dependent MCPR Limit for Siemens 9x9-5 EOC-3307 mwd /MT - EEOC 2.1 > 50% Core Flow N . (25,1.99) (40,1.99) 2.0 1.91 _.

(25,1.89) (40,1.89) (50,1.82)

< 50% Core Flow (60,1.75) 1.7 m

o 1.6 go 1.51)

- 1.5 (80,1.41) 1.4 1.3 -

=

(90. 1.31) (100,1.30) 1.2 1.1 1.0 - -

+ 4 O 10 20 30 40 50 60 70 80 90 100 110 Core Power (% rated)

Standard No.: GGNS-MS-48.0, Rev. 4 Attachment 2, Rev. 0 .

Page: 5 of 5 Cycle 9 Flow-Dependent MCPR Limits -

1.45 -

(20,1.399) (30,1.399) S'emens 9x9-5 1.4 = -

-a--GEt t (20,1.359) (30,1.3,59)

_ 1.35 ,

c E

o

" 1.3

\_ _ =

1.25 U2.1.26) 9 8.1.26) (105,1.26) 1.2 4 '

4* '

, *-4 '

0 10 20 30 40 50 60 70 80 90 100 110 Core Flow (% rated) i

[

f I

i

_ . . _ . __ . . _ . . . . _ _ . . . _ _ . . _ _ _ . . _ - .__ _ . . . . _ . . _ . ~ . _ . . . .

Standard No.: GGNS-MS-48.0, Rev. 4 Attachment 3, Rev. 0 ,

Page: 1 of 3 Cycle 9 Linear Heat Generation Rate 14 for Siemens 9x9-5 (0,13.1) (15.5,13.1) 13 -

12 c 11 5'

6 10 5

5 9-8 (55, 8.0) 7 6+ '

4

+  :

O 10 20 30 40 50 60 Average Planar Exposure (GWd/MT)

Standard No.: GGNS-MS-48.0, Rev. 4 Attachment 3, Rev. 0 Page: 2 of 3 Cycle 9 Power-Dependent LHGR Factors 3.3 for Siemens 9x9-5 (70,1.0) (100,1.0) 1

=

2 0.9 U

5  :

I, 0.8 ,

= '

(25.0.75) (40,0.75) ,

0.6  : -+ +  :  :  :  : 4  :

O 10 20 30 40 50 60 70 80 90 100 110 Power (% rated)

- - - - - - _ _ - - - - - - _ _ _ - _ _ _ _ _ _ - . _ - _ _ _ . _ _ - . - - _ _ _ _ _ . - _ - - _ _ - - - - - _ - - - -_ __ --_ - _ - - - - - - _ - - _ _ _ _ - _ _ _ - - - _ _ . - _ - _ _ _ - - - _ . . _ - - ~ ~ _ - _ _ _

Standard No.: GGNS-MS-48.0, Rev. 4 Attachment 3, Rev. 0 ' ~

Page: 3 of 3 Cycle 9 Flow-Dependent LHGR Factors 3,3 for Siemens 9x9-5 (68,1.0) (105,1.0) 1 -

g 0.9 o

2 o

5 0.8 - -

(20,0.792) (30,0.792) 0.7 0.6 , +* '

0 10 20 30 40 50 60 70 80 90 100 110 Core Flow (% rated)

_ _ _ _ _ __