ML20196K798

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Rev 4 to COLR, for Cycle 8
ML20196K798
Person / Time
Site: Beaver Valley
Issue date: 03/25/1999
From:
DUQUESNE LIGHT CO.
To:
Shared Package
ML20196K797 List:
References
NUDOCS 9904060299
Download: ML20196K798 (6)


Text

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BVPS-2 LICENSING REQUIREMENTS MANUAL

4.1 CORE OPERATING LIMITS REPORT  ;

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His Core Operating Limits Reoort provides the cycle specific parameter limits developed in accordance with the NRC approved niethodologies specified in Technical Specification Administrative Control 6.9.1.12.

Specificatinn 3.1.3.5 hedawn Rod fa-elan i imien I

He Shutdown rods shall be withdrawn to at least 225 steps. I I

Snecifientian 3.1.3.6 Control Rod In= tion i 1=l+= )

Control Banks A and B shall be withdrawn to at least 225 steps.

Control Banks C and D shall be limited in physical insertion as shown in Figure 4.1-1. l Specifir=* inn 3.2.1 Arimi Flux Differanca NOTE: The target band is 17% about the target flux from 0% to 100% RATED THERMAL POWER.

De indicated Axial Flux Difference:

a. Above 90% RATED THERMAL POWER shall be maintained within the 17%

target band about the target flux difference.

b. Between 50% and 90% RATED THERMAL POWER is within the limits shown bd Figure 4.1-2. l
c. Below 50% RATED THERMAL POWER may deviate outside the target band. j Specifientinn 3.2.2 Fn(Z) mi F.y.Lindla CF Fq(Z) $ 0
  • K(Z) for P > 0.5 P

CF l Fq(Z) 5 q

  • K(Z) for P.s 0.5 ,

0.5 i THERM'AL POWER P=

l Where: CFq = 2.4 K(Z) = the function obtained from Figure 4.1-3. l l

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, COLR 8 l 4.1-1 Revision 4 9904060299 990325 -

PDR ADOCK 05 4]2" ,

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tw' BVPS-2 LICENSING REQUIREMENTS MANUAL The F,y limits [F,y(L)] for RATED THERMAL POWER within specific core planes shall be:

F,y(L) = F,y(RTP) (1 + PFxy * (1-P))

i Where: For all core planes containing D-Bank:

F,y(RTP)i 1.71 For unrodded core planes:

F,,(RTP)i 1,72 from 1.8 ft. elevation to 2.6 ft. elevation l F,y(RTP)i 1.76 from 2.6 ft. elevation to 9.7 ft. elevation l F,y(RTP)i 1.69 from 9.7 ft. elevation to 10.2 ft. elevation l PF,y = 0.2 THERMAL POWER P = RATED THERMAL POWER Figure 4.1-4 provides the maximum total peaking factor times relative power (Fq'*PJ as a l function of axial core height during normal core operation.

I Specification 3.2.3 Fh Fh s CFg * (1 + PFg (1 - P))

Where: CFan = 1.62 PFan = 0.3 THERMAL POWER P = RATED THERMAL POWER i

l COLR 8 l 4.1-2 Revision 4

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. e BVPS-2 LICENSING REQUIREMENTS MANUAL

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/ 38, 01 0 / I O 20 40 60 80 100 RELATIVE POWER (Percent) i MGURE 4.1-1 CONTROL ROD INSERTION LIMITS AS A FUNCTION OF POWER LEVEL COLR 8 l 4.1-3 Revision 4 i

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, .- i, l BVPS-2 LICENSING REQUIREMENTS MANUAL i

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-50 -40 -30 -20 -10 0 10 20 30 40 50 FLUX DIFFERENCE (delta-I), %

FIGURE 4.1-2 AXIAL FLUX DIFFERENCE LIMITS AS A <JNCTION OF RATED THERMAL POWER COLR8 l 4.1 4 Revision 4

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i BVPS-2 LICENSING REQUIREMENTS MANUAL 1.20 0.0, 1.001 6.0, 1.001 1.00 =

N N

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l 12.0, 0.925l 0.80 E

g0.60 0.40 l

0.20 i

i 0.00 0 2 4 s 8 10 12 CORE HEIGHT (Feet)

FIGURE 4.1-3 FqT NORMALIZED OPERATING ENVELOPE, K(Z) i COLR8 l l

l 4.1-5 Revision 4 l

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l BVPS-2 e LICENSING REQUIREMENTS MANUAL i

l 2.60 i i i i i i 0.0, 2.40l l 6.0, 2.40l l

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^ c 1.72 FRon 1.8 FT. To 2.s rr. .

l r 1.76 FROM 2.6 FT. TO 9.7 FT.

0.60 1.69 FROM 9.7 FT. TO 10.2 FT.

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0.40 0.20 0.00 0 2 4 6 8 10 12 CORE HEIGHT (FT)

FIGURE 4.1-4 MAXIMUM (F gT*PREL) VS. AXIAL CORE HEIGHT DURING NORMAL OPERATION COLR 8 l l 4,16 Revision 4 i

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