ML19327B098: Difference between revisions
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f, 'i ., $j if . ,, . /M ,+i 7 | f, 'i ., $j if . ,, . /M ,+i 7 | ||
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r, -~, F. . . .. , | r, -~, F. . . .. , | ||
, , .c,. . k. . | , , .c,. . k. . | ||
4 . > .. .. , , - .j W8871530088 F90fRIETARY CLAS$ 3 | 4 . > .. .. , , - .j W8871530088 F90fRIETARY CLAS$ 3 | ||
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ATTACIBGNT.1 m1 | ATTACIBGNT.1 m1 | ||
) | ) | ||
Millstone Unit 3. Cyets 3 Radial Pasking Factor Limit Reports | Millstone Unit 3. Cyets 3 Radial Pasking Factor Limit Reports for Four loop and Three Loop operation 6 | ||
for Four loop and Three Loop operation 6 | |||
L , | L , | ||
1 | 1 | ||
Line 275: | Line 271: | ||
'). >> , | '). >> , | ||
WESTINWOUSE FA0FE1ETARY CLASS 3 : | WESTINWOUSE FA0FE1ETARY CLASS 3 : | ||
Radial Peaking faster Limit Report : | Radial Peaking faster Limit Report : | ||
Three 14ep operation | Three 14ep operation This Radial Peaking Faster Limit Report is provided in assordamse with' l Paragraph .6.9.1.6 of the Milletone Unit 3 Nuelear Plant Teeknisal : | ||
This Radial Peaking Faster Limit Report is provided in assordamse with' l Paragraph .6.9.1.6 of the Milletone Unit 3 Nuelear Plant Teeknisal : | |||
spoeifications. . | spoeifications. . | ||
The three loop operation F,7 limits for 656~of RATED THERMAL 70 m within specific sore planes for Cycle 3 shall be: | The three loop operation F,7 limits for 656~of RATED THERMAL 70 m within specific sore planes for Cycle 3 shall be: | ||
Line 390: | Line 382: | ||
WRITINB10 DOE PRORIETARY CIASS 3 s . . | WRITINB10 DOE PRORIETARY CIASS 3 s . . | ||
Radial Feeking Footer Limit. Report Three 14ep Operation I | Radial Feeking Footer Limit. Report Three 14ep Operation I | ||
; This Radial' Peaking Faster Limit Report is provided in asserdance with Paragraph 6.9.1.6 of the Millstone Unit 3 Nualear'Flant Tsehnical r Spesifications. | ; This Radial' Peaking Faster Limit Report is provided in asserdance with Paragraph 6.9.1.6 of the Millstone Unit 3 Nualear'Flant Tsehnical r Spesifications. | ||
The three loop operation F limits for 65% of RATED THERNAL P0irER ; | The three loop operation F limits for 65% of RATED THERNAL P0irER ; | ||
Line 444: | Line 435: | ||
Current and Proposed Relationshios n | Current and Proposed Relationshios n | ||
Current Proposed | Current Proposed | ||
.fhy-1.53[1'+.312(1- P)] Unrodded Fhy-1.69[1+.281(.65- P)] Unrodded | .fhy-1.53[1'+.312(1- P)] Unrodded Fhy-1.69[1+.281(.65- P)] Unrodded L | ||
L | |||
.65 xy - 1.69 Fhy-1.69 P F 3, P = .5 Fhy-1.76 Fhy-1.76 | .65 xy - 1.69 Fhy-1.69 P F 3, P = .5 Fhy-1.76 Fhy-1.76 | ||
'l I' ( | 'l I' ( |
Latest revision as of 17:07, 18 February 2020
ML19327B098 | |
Person / Time | |
---|---|
Site: | Millstone ![]() |
Issue date: | 10/16/1989 |
From: | NORTHEAST NUCLEAR ENERGY CO. |
To: | |
Shared Package | |
ML19327B097 | List: |
References | |
NUDOCS 8910250194 | |
Download: ML19327B098 (12) | |
Text
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< MAIN STEAM LINE ISOLATION VALVES LIMITING CONDITION FOR OPERATION l .
'3.7.1.5 Each main: steam line isolation valve (MSIV) shall be OPERABLE.
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APPLICABILITY: MODE 3 1, 2, 3, and 4.
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ACTION: i L
MODE l:
u .,.. With one- MSIV inoperable but open, POWER. OPERATION may continue ;
l provided the inoperable valve is restored- to OPERABLE status within 1
! 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />; otherwise be in HOT STANDBY . within. .the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> .and 'i L in HOT' SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. ;
l MODES 2, 3, and 4: )
.L With one' MSIV inoperable, subsequent operation in MODE 2 or 3 or 4 may L' proceed provided the isolation valve is maintained closed. Otherwise, be L in HOT. STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the ,
following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. !
SURVEILLANCE' REQUIREMENTS I
!. within 5 seconds in Modes 1, 2, and 3 when tested pursuant to Specification 4.0.5. The provisions of Specification 4.0.4 are not applicable for entry into MODE 3. l
, . 4.7.1.5.2 Each MSIV shall be demonstrated OPERABLE by verifying full closure-L~
within 120 seconds in Mode 4 when tested purs.uant to Specification 4.0.5. The I provisions of Specification 4.0.4 are not appl.icable for entry into Mode 3. I s
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N WBSYINWOUSS PROPRIETARY C: ASS 3 Radial Peaking Faster Limit Report Four 1 mop Operation his Radial Peaking Faster Limit Report is provided in asserdance with Paragraph 6.9.1.6 of the Millstens Unit 3 puoloar Plant Toshnical specifiestions.
The four loop operation F limits for RATED THERNAL POUIR within 9
speettic core planse for Cyele 3 shall bei 1, . F"",7 less than or equal to 1.'/9 for all more planes containing Bank "D" oentrol rods, and
- 2. F" less than or equal to 1,67 for all unrodded more planes, Thess'F ,(s) limits were used to confirm that the heat fium het 4 ciaannel fastet F g (s) will be limited to the Toshnical Specification values of:
j F(s)$if][K(s))forP>0.5and, q
Fq (s) 5 l' 641 IK(s)) for Ps o,5 l
assuming that most limiting axial power distributions expected to '
result from the insertion and removal of Control Banks 8, C and D during operation, including the secompanying variations in the axial manon and power distributions as described in the " Power Distribution j
Control and Imad Fellowing Procedures". WCAP 8403, Septeabet,1974.
Therefore, these F , limits provide assurance that the initial conditions assumed in the LOCA analysis are met, along with the ICCS aseeptanas criteria of 10CFR50.46, see Figure 1 for a plot of [Fq T,P ] versus Axial Core Height.
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top sorrow COREHEIGHT(FEET) noun i MA11 MUM FqT Pgg, VRSUS AKIAL CORE BEIGHT DURING NORMAL CORE 4 LOOP OPERATION
~ _ _ _ _ _ _ _ _ . . _ _ . _ _ . . _ _ _ ._ _ _ . . ._
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WESTINWOUSE FA0FE1ETARY CLASS 3 :
Radial Peaking faster Limit Report :
Three 14ep operation This Radial Peaking Faster Limit Report is provided in assordamse with' l Paragraph .6.9.1.6 of the Milletone Unit 3 Nuelear Plant Teeknisal :
spoeifications. .
The three loop operation F,7 limits for 656~of RATED THERMAL 70 m within specific sore planes for Cycle 3 shall be:
F 65 RTF less than er equal to 1.64 for all eers planes
- 1. i eentaining tank 'D' eentrol reds, and 65 RTP less than et equal to 1.53 for all unredded eers
- 2. F planes.
- 3. In the reistionship for F,,L the sultiplier M7,7 is equal to A
. 0.312.
I These Fg (s) limits were used to confirm that the heat flux het ehannel factor F q (s) will be limited to the Technical Specification
" values of Fg (s) $ (f) (K(s)) for 0.65 g F > 0.325 and, p
F9(s) $ 15.20] (K(s)) for P s 0.325 i l
assuming that most limiting axial power distributions expected to ;
result from the insertion and removal of control Banks 5, C and D during operation, including the aceospanying variations in the axial L ,
zonen and power distributions as described in the " Power Distribution I Control and Imad Fe11 ewing Procedures', WCJL* 8403, September,1974 l
limits provide assurance that the initial Therefore, these F,7 l eenditions assumed in the thCA analysis are met, sleng with the ECCS t acceptance eriteria of 10CFR50.46. l l
see Figure 2 for a plot of (F . Pg,g) versus Axial Core Height, l
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COREHEIGHT(FEET)
FIGURE 2 1
MAXIMUM FqT
- PggL VERSUS AXIAL CORE HEIGHT DURING WORMAL CORE 3 LOOP OPERATION r
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ATTAcilNEllT 1 Suggested Revision to Toshnical Specification 4.1.1.2.2.s and navised Three 14ep Radial Peaking Factor Limit Report 5
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, MbER DISTRIBUTION LIMIT 8 )
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.4.2.3.2.1 The previsions of Specification 4.0.4 are not applicable.
['
l>, 4.t.8.2.8 F, shall be evaluated to determine if gF (Z) is within its limit by: l
- e. Using'the' movable incere detectors to obtain a power distribution esp at any THERMAL POWER greater than 5 of RATED THEWL POWER, .
- b. Increasing the measured F, component of the. power distribution map by 5 to account for manufacturing tolerances and further increasing the value by N to account for seasurement uncertainties, 0
- c. Comparing the F temputed(F9)obtainedinSpecification 4.2.2.2.26 o
above to: Y
- 1) The F limits for G N of Raft 0 THERMAL POWER (F $ RTP) for the i
, 9 appropriate measured core planes given in Specification 4.2.2.2.te, l and f., below, and
- 2) The relationship L '
8 Fy=F'f887P(1*p ([P)),
V I i
Where F,' is the limit for fractional THERMAL POWER operation 0 65'RTP expressed as a function of F ,My is the F , multiplier, andPisthefractionofRATEDTHERMALPkRatwhichF W was measured.
- d. Remeasuring F, according to the following schedule:
- 1) When F isgreaterthantheFh65RTPlimit for the appropriate esasured core plane but less than the F relationship, additional l
- c 0 power distribution maps shall be taken and F,y compared to F andr;either
's) Within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after exceeding by 205 of RATED THERMAL POWER er greater, the THERMAL POWER at was last F *C which deterwined, or b) At least once per 31 Effective Full Power Days (EFPD),
whichever occurs first.
3/4 2-12 007075 MILLSTONE - UNIT 3
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Radial Feeking Footer Limit. Report Three 14ep Operation I
- This Radial' Peaking Faster Limit Report is provided in asserdance with Paragraph 6.9.1.6 of the Millstone Unit 3 Nualear'Flant Tsehnical r Spesifications.
The three loop operation F limits for 65% of RATED THERNAL P0irER ;
within specifie sore planss for cyste 3 shall bei-
- 1. F 65 RU loss than er equal to 1.81 for all eere planes sentaining Bank "D" control rods, and :
- 2. F 65 RU less than or equal to 1,69 for all unrodded oore !
- Planes. ;
- 3. In the relationship for F I' the multiplier is equal to 0.281. t L'
1 These Fm (s) limits were used to confirm that the heat flux hot channel factor Fg (s) will be limited to the Technical Specification l
values of:
Fq (s) 3 [ ] [K(s)) for 0.45 g P > 0.325 and, !
i Fq (s) 5 (S.20) (K(s)) for P $ 0,325 assuming that most limiting axial power distributions expected to i result from the insertion and removal of control Banks 5, C and D during operation, including the accompanying variations in the axial zonen and power distributions as described in the " Power Distribution Centrol and Lead Fellowing Frecedures", WCAP 8403, September, 1974 Therefore, these F limits provide assurance that the initial senditions assumed in the IDCA analysis are not, along with the Ecc5 aseeptance criteria of 10CFR50.46. .
See Figure 2 for a plot of [F .Phl) versus Axial Core Height.
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'/, ' L Examples of Fxy.Using the Current and' Proposed Relationships J
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'B13343/ Attachment 3/Page 1 ,
l0ctober 16, 1989 Millstone Nuclear Power Station, Unit No. 3 Examples of F L using the xy ,
Current and Proposed Relationshios n
Current Proposed
.fhy-1.53[1'+.312(1- P)] Unrodded Fhy-1.69[1+.281(.65- P)] Unrodded L
.65 xy - 1.69 Fhy-1.69 P F 3, P = .5 Fhy-1.76 Fhy-1.76
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xy
- 1,64.[1 + .312.(1 - P)] Rodded Fhy-1.81{1+.281(.65- P)] Rodded L
'P .65 F xy - 1.81 Fhy-1.81 o
L P = . 5. Fhy-1.89 F xy - 1.89
<1 Additional surveillance' required when Additional surveillance required when f,. Fhy is between 1.53/1.64 and the limit. Fhy is between 1.69/1.81 and the limit, y
le.
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