ML20125E660

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Rev 2 to TMI-1,Cycle 9 Core Operating Limits Rept
ML20125E660
Person / Time
Site: Three Mile Island Constellation icon.png
Issue date: 11/23/1992
From: Bond G, Jaffe R, Nelson M
GENERAL PUBLIC UTILITIES CORP.
To:
Shared Package
ML20125E657 List:
References
TR-083, TR-083-R02, TR-83, TR-83-R2, NUDOCS 9212170175
Download: ML20125E660 (29)
v • d • e


Text

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1 TMI-l Cycle 9 Core Operating Limits Report TOPICAL REPORT 083 Rev. 2 BA Number 135400 TMI-1 Cycle 9 Reload Task Force November, 1992 APPROVALS; ll/19/9o2 Originator f // 'Date'

% %. 'A4 ([

le]9 $ load Task Fore hairman 11ll$4v bate WAb)( a - -

Manager, TMI Fuel Projects it /t3 (%

Date

$ //~/b'1%

Director, Syst' ems Engineering Date f l U M lll $ 92, Plant Review Group Date This COLR is Effective as of : -Cycle 9 Initial Criticality 9212170175 921211 PDR ADOCK 05000289 P PDR

Nuclear DOCUMENT NO.

TR-083 TRLE TMI-1 Cycle 9 Core Operating Limits Report REV

SUMMARY

OF CHANGE APPROVAL DATE  !

l 1

1 Revised Error Adjusted Rod Insertion Limits Curves for 2, 3, and 4 Pump Operation from gp P

'/ r/r/4A l

105 +/- 5 EFP0 to E0C to reflect the increase '

in rod position indication error from 1.5% WD to 2.0% WD.

~ ' Ul'h 'L-1 Similar curves for the 0-45 and 45-105 EFPD

windows were not corrected as the identification q of the larger error was not made until after 1

105 EFPD. =.2 w-=== . 4;,.u..w -

4 4

2 Incorporated the LOCA limited maximum allowable linear heat rate (MALHR) curve into this report, p/,2/93

) aswell as bounding values for these limits as a function of cycle burnup and core monitoring system level . Removal of the LOCA limited MALHR curve from the Technical Specifications to the 7K~ lif t 3A 1,_.

COLR has been- reviewed per GPUN S.E. 135400-016 Rev. 0.

Reorganized the COLR references based on this

, revi sion .

, This revision goes into effect uoon NRC approval of TSCR-208 and TSCR-220.

s.

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  1. YR 083 l 'Rev. 2 i Page 1 of 27 i

1 t

1. ABSTRACT 4

1 i

This core operating Limits Report (COLR) has been prepared in accordance with the requirements of TMI-l Technical Specification 6.9.5. The core operating j limits were generated using the methodologies described in Technical Specification 6.9.5.2 and in References 1, 2 and 7, and were documented-in i References 3, 4, 6 and-10. The information in this COLR was reviewed for use

}- at TMI-l in References 5, 8 and 9.

l t COLR Figures 1 through 6 may have three distinctly defined regions:

} 1. Permissible Region

2. Restricted Region-
3. Not Allowed Region (Operation in this region is not allowed) 4 l Inadvertent operation within the Restricted Region for a period not exceeding

{ four (4) hours is not considered a violation of a limiting condition for

i. operation. The limiting criteria within the Restricted Region are potential j ejected rod worth and ECCS power peaking. Since the probability of these accidents is very. low, especially in a four (4) hour time frame,-inadvertent operation within the Restricted Region for a period not exceeding four.(4) hours is allowed.

j- COLR Figure 7 indicates the LOE- limited maximum allowable linear heat rate's

! as a function of fuel rod burn.p and fuel elevation. Bounding values for f monitoring these limits for the current cycle.in terms of cycle burnup and i axial detector levels are listed in Table 2.

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TR 083 Rev. 2 Page 2 of 27 4

l TABLE OF CONTENTS a

PAGE l

References 3 j Full Incore System (FIS) Operability Requirements 4 h Table 1 Quadrant Tilt Limits 5 a

I

Figure 1 Error Adjusted Rod Insertion Limits 6 4 Pump Operation i Figure 2 Error Adjusted Rod Insertion Limits 9
3 Pump Operation Figure 3 Error Adjusted Rod Insertion Limits 12 2 Purap Operation i

i Figure 4 Full Incore System Error Adjusted 15 Imbalance Limits l

Figure 5 Out-of-Core Detector System Error Adjusted 18

Imbalance Limits l-Figure 6 Minimum Incore System Error Adjusted Imbalance Limits 21 l Figure 7 LOCA Limited Maximum Allowable Linear Heat Rate 24 i

Table 2 Core Monitoring System Bounding Values for 25 LOCA Limited Maximum Allowable Linear Heat Rates l Enclosure ( Non-Tech. Spec. Required Operating Limits ) 26 l

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TR 083 Rev. 2 Page 3 of 27 Referencess dein Body

1. Letter from J. H. Taylor (B&W) to J. A. Norberg (NRC), " Extended Lifetime Incore Detector Error Allowances", April 21, 1988, JHT/88-28.
2. BWFC Doc. No. 86-1172640-00, " Detector Lifetime Extensior. Final Report for TMI-1," September 1988.
3. BAW-2134 Rev. 1, "Three Mile Island Unit 1 Cycle 9 Reload Report,"

October 1991.

4. BWFC Doc. No. 86-1203799-00, "THI-1 Cycle 9 Core Limits & Setpoints,"

May 1991.

5. GPUN Safety Evaluation 135400-014, Rev. O, *THI-1 Cycle 9 Reload Design," Soptember 10, 1991.
6. GPUN Calc. No. C1101-202-5412-174, Rev. O, "THI-1 Cycle 9 Revised Error Adjusted Rod Insertion Limits," May 1992.
7. GPUN Safety Evaluation 000622-001, Rev. 1, " Control Rod API and RPI 24 Month Cycle Extension," April 16, 1992.
8. GPUN Safety Evaluation 135400-015, Rev. O, "TMI-1 Cycle 9 Core Operating Limits Report," May 1992.
9. GPUN Safety Evaluation 135400-013, Rev. O, " Tech Spec LOCA Limit Changes," June 28, 1991,
10. BWFC Doc. No. 62-1203846-00, " Power Escalation Test Specification THI-1 Cycle 9," August 29, 1991.

Enclosure ( Non-Tech. Spec. Required Operating Limits )

. BAW-10143P-A, "BWC Correlation of Critical Heat Flux", April 1985.

2. BAW-10156A "LYNXTl Core Transient Thermal Hydraulic Program", February 1986.

i

Full Incore System (FIS)

Operability Requirements

>

  • The Full Incore System (FIS) is operable for monitoring axial power imbolonce provided the number of valid Self Powered Neutron Detector (SPND) signals in any one quadrant is not less than 75 % of the total .

number of SPNDs iii the quadroni.

Ouadrant SPNDs 75 %

WX 85.75 64.50 XY 99.75 75.00 ,

YZ 89.25 67.00 ZW 89.25 67.00

  • The Full Incore System (FIS) is operable for monitoring quadrant tilt provided the number of valid symmetric string individual SPND signals in any one quadrant is not less than 75 % (21) of the total number of SPNDs in the quadrant (28).

Quadrant Symmetric Strings WX 7, 9,32,35 XY 5, 23, 25, 28  ;

YZ 16, 19, 47, 50 yyg ZW 11, 13, 39, 43 g5 o u o$

R Source Doc.  : B&W 86- 1172640-00 $

Referred To By : Tech. Spec. 3.5.2.4.a and 3.5.2.7.a

-9 Table 1 I

Quadrant Tilt Limits Steady State Limit Steady State Limit Maximum Limit 15% < Power < 50% Indicated Power >50% Indicated Power > 15%

Full incore 6.83 % 2.39 % ' 6.8 %

System (FIS)

Out-of-Core Detector System (OCD)

L05 %

. '.96  % 'L 2 .  %

Minimum incore 2.80 % 90 % 9.5 %

System (MIS)

?E$

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!- Source Doc. B&W e61203799 00 Referred to by Tech Spec 3.5.2.7.a and 3.5.2.4.e.3 -

I

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Figure 4 (Page 3 of 3) TR 083 ROV. O Fullincore System Page 17 of 27 Error Adjusted Imbalance Umits 105 +/- 5 EFPD to EOC E II I!II III i no RESTRICTED REGION j"O I I I I ' I '

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35 30 25 20 15 10 5 0 5 10 15 20 25 30 35 Indicated Axial Power Imbalance, %FP Each Div. = 1% FP Source Doc. B&W 881203799 00 Referred to by Tech Spec 3.5.2.7.a and 3.5.2.4.e.3

._--_-__.-_._-.-_._----..u-.. , _ -

Figure 5 (Page 1 of 3) n osa i Out-of-Core Detector System $$;$8or27 Error Adjusted Imbalance Umits 0 to 45 +/- 5 EFPD g i I!lIII I ! I "O $

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! Source Doc. B&W 861203799 00 Referred to by Tech Spec 3.5.2.7.b and 3.5.2.4.e.3 f

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  1. - --.. - _,,,,.,u,-,r, ,,,-,m.,,.y ,,,,m,-,,q., . -, ,._m.,w--, ,,,,,,.%.,#--,,,-o . . , , - . . . , , , _ - . , . ,.m.i. .e,dr m --

l Figure 5 (Page 2 of 3) n 083 Out-of-Core Detector System $l,$9or27 Error Adjusted Imbalance UmitS 45 +/- 5 EFPD to 105 +/- 5 EFPD j l l iI I I l l l 2 RESTRICTED REGloN f I'0 h 14 I 102 , 15.1.102 100 _

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Figure 5 (Page 3 of 3) Ta 083 Out-of-Core Detector System "E;$0or27 Error Adjusted imbalance Umits 105 +/- 5 EFPD to EOC

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- Referred to by Tech Spec 3.5.2.7.b and 3.5.2.4.e.3

TR 083 Figure 8 (Page 1 of 3) Rev. O Minimum Incore System Page 21 of 27 Error Adjusted imbalance Umits l

O to 45 +/- 5 EFPD

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Referred to by Tech Spec 3.5.2.7.c and 3.5.2.4.e.3 l- ,

Figure 6 (Pcge 2 of 3) TR 083 Rev. O

! Minimum incore System page 22 or 27 l Error Adjusted Imbalance Umits j 45 +/- 5 EFPD to 105 +/- 5 EFPD l  : II II II Il! 5 "O

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l Referred to by Tech Spec 3.5.2.7.c and 3.5.2.4.e.3 l

Figure 6 (Page 3 of 3) TR 083 Rev. O Minimum incore System Page 23 of 27 Error Adjusted imbalance Umits 105 +/- 5 EFPD to EOC l 1I III II i  :

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

TR 083 Rev. 2 Page 24 of 27 L

FIGURE 7 LOCA Limited Maximum Allowable Linear Heat Rate 20 _

19 -

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Burnup, GWd/mtU Source Doc. BAW-2134, Rev. 1
Ref erred to by Tech Spec 3.5.2.8 l

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TR 083 Rev. 2 Page 25 of 27 Table 2 Core Monitoring System Bounding Values for LOCA Limited Maximum Allowable Linear Heat Rate (kW/ft)

CMS 0-40 40-438 438-511 511-572 572-590 Level EFPD EFPD EFPD EFPD ETPD 8 15.0 15.4 16.0 15.5 15.0 7 15.4 15.6 16.0 15.5 15.0 6 16.2 16.1 16.0 15.5 15.0 5 16.1 16.1 16.0 15.5 15.0 4 16.1 16.1 16.0 15.5 15.0 3 14.9 15.7 15.6 15.5 15.0 2 14.5 15.5 15.5 -15.5 15.0 1 14.5 15.5 15.5 15.5 15.0 The maximum linear heat rate for each CMS level, as measured with the NAS Thermal Hydraulle Package (Display 4), should be less than the corresponding bounding value from Table 2 above.

Source Doc. B&W 62-1203848-00

1 l

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- 4 1

2 i

TR 083 Rev. 0 .

J Page 26 of 27 t

4 i

I 4

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Enclosure i Non-Tech. Spec. Required Operating Limits (i

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Core Minimum DNBR Operating Limit I The core minimum DNBR value as measured with the NAS Thermal Hydraulic Package (Display 1 or 4) should not be less than 2.01 (102% ICDNBR).

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Source Doc. : BAW 2134 i

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_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

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