ML17339A892
| ML17339A892 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 03/13/1980 |
| From: | Grotenhuis M Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8004140120 | |
| Download: ML17339A892 (25) | |
Text
MARCH 1 0 1980 DOCKET NOS:
50-250 50-251 LICENSEE:
FACILITY:
SUBJECT:
Florida Power 8 Light Company (FPL)
Turkey Point Plant Unit Nos 3
8 4 Summary of Meeting Held on March 4, 1980 Regarding The Steam Generator Inspection and Plugging Program On March 4, 1980 at 9:00 a.m.
representatives of the
- NRC, FPL and Westinghouse (W) met at the request of FPL to discuss the steam generator inspection program.
The agenda is provided in attachment l.
Attendees are listed in attachment 2.
Background:
Turkey Point Unit 4 was authorized to operate for six equivalent full power months (EFPM) from June 1,
1979 by amendment 41 dated June 15, 1979.
An additional two EFPM was authorized by amendment 43 dated December 14, 1979 and a further four EFPW was authorized by amendment 44 dated February 22, 1980.
The latter amendment restricted operation to April 1, 1980 at the latest.
This meeting was requested to review the basis for approving operation of the Turkey Point plants, and in addition, to discuss scheduling problems in the FPL system.
Summary:
The meeting was opened by Mr. Grotenhuis who indicated the purpose of the meeting and that it had been requested by the FPL.
G.
D. Whittier (FPL) gave introductory remarks regarding the current status of the Turkey Point plants and the FPL plans regarding refueling and steam generator inspections.
In particular Turkey Point Unit 4 is currently scheduled for an October 1980 retuelling outage and would get one steam generator inspection before that outage as well as another during that outage.
He also indicated that Turkey Point Unit 3 is on a 12 month fuel cycle and, to avoid concurrent refuelling outages with Unit 3 and Unit 4 as well as to avoid peak power demand periods, Turkey Point Unit 4 is on a 15 month fuel cycle.
Considerations involved in scheduling the nuclear units in the FPL system in addition to health and safety of the public are such things as economics, service to the customers, radiation doses to the plant personnel, steam generator conditions, etc.
t
'e 0
Mr.
C. 0.
Woody (FPL) presented scheduling considerations of both the nuclear and fossil units in the FPL system.
Factors involved include:
1.
The FPL system hit a new peak load recently.
2.
Nucelar unit availability has dropped lOX his year due to TMI and related considerations.
Martin Unit No.
1 (fossil) will be starting in late 1980 rather than June 1980 because of a dam break.
4.
Fossil unit maintenance has been postponed because of things such as mentioned in 2 and 3 above.
5.
Turbine rotors for Unit 4 will be available for installation in May 1980.
6.
EPA update for required air quality improvements of some fossil units is being delayed.
7.
St.
Lucie lessons learned and reload.
Considerations of such factors as the above has led to the urgency of Turkey point Unit 4 to be kept on line until about May 1, 1980.
This is consistent with the FPL application dated May 18, 1979 which requested 10 EFPM of operations for Unit 4.
A presentation of steam generator status and history by D. Malinowski (W) and R. J.
Acosta (FPL) is given in attachment 3 (eleven pages).
This data is presented in summary form as a backup for the technical basis for continued operation.
During the discussion of this data questions from the NRC staff were answered.
In addition there was considerable discussion regarding the basics for operation with degraded steam generators.
A summary of the points FPL spoke to during the meeting is as fol'lows.
l.
The presentation imperically supports the technical justification for continued operation until May 1, 1980, or essentially the total of ten EFPM requested in the amendment request dated May 18, 1979.
2.
The Unit 4 steam generators will be inspected during the October refuelling outage regardless of whether the current inspection will be due April 1, 1980 or May 1, 1980.
3.
FPL will investigate the effort required to establish the bases for a ten month operating period versus the current six month period.
V 1
4.
The FPL system is in such a position that economics, environmental improvements and maintenance schedules of fossil units and scheduling of nuclear requirements make operation of Turkey Point 4 a real necessity until May 1, 1980.
The NRC staff made two points regarding the steam generator inspections.'.
An adequate basis has been given to substantiate the predictability of a six month operating period with degraded steam generators.
2.
An extrapolation of the prediction capability to operation for ten months is not acceptable without the establishment of an acceptable model, for such an operating period.
The next actions to take place regarding the FPL request to operate until May 1, 1980 before inspecting the steam generators are:
1.
The NRC will prepare meeting summary.
2.
NRC will.discuss the meeting with higher management.
3.
FPL will formally submit an. amendment request which will include the information presented orally in the meeting.
4.
NRC will respond to the amendment request.
Original Signed By cc: w/enclosures Mr. Marshall Grotenhuis Senior Project Manager Operating Reactors Branch No.
1 Division of Operating Reactors DOR:ORB ¹ MGrotenhui s
$ /pj/00 DOR AS
¹1 neer yP$
00 EB:
BDL
1 (g]/
Meeting Summary for Turkey Point 3
Im 4
MARCH 1 3 1980'ocket Files NRC PDR Local PDR ORBl Reading NRR Reading H. Denton E.
Case D. Eisenhut R. Tedesco G. Zech B. Grimes H.
Gammil 1 L. Shao J. t1iller R. Vollmer T. J. Carter A. Schwencer D. Zi emann P.
Check G. Lainas D. Crutchfield
- 8. Grimes T. Ippolito R. Reid V. Noonan G. Knighton D. Brinkman Project Yianager OELD OraE (3)
C. Parrish/P.
Kreutzer ACRS (16)
NRC Participants NSIC TERA licensee Short Service List
UNITEDSTATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 MARCH 1 8 I980 DOCKET NOS:
50-250 50-251 LICENSEE:
FACILITY:
SUBJECT:
Florida Power 8 Light Company (FPL)
Turkey Point Plant Unit Nos 3 8 4 Summary of Meeting Held on March 4, 1980 Regarding The Steam Generator Inspection and Plugging Program On March 4, 1980 at 9: 00 a. m. representatives of the
- NRC, FPL and Westinghouse (W) met at the request of FPL to discuss the steam generator inspection program.
The agenda is provided in attachment 1.
Attendees are listed in attachment 2.
Background:
Turkey Point Unit 4 was authorized to operate for six equivalent full power months (EFPM) from June 1,
1979 by amendment 41 dated June 15, 1979.
An additional two EFPM was authorized by amendment 43 dated December 14, 1979 and a further four EFPW was authorized by amendment 44 dated February 22, 1980.
The latter amendment restricted operation to April 1, 1980 at the latest.
This meeting was requested to review the basis for approving operation of the Turkey Point plants, and in addition, to discuss scheduling problems in the FPL system.
Summary:
The meeting was opened by Mr. Grotenhuis who indicated the purpose of the meeting and that it had been requested by the FPL.
G.
D. Whittier (FPL) gave introductory remarks regarding the current status of the Turkey Point plants and the FPL plans regarding refueling and steam generator inspections.
In particular Turkey Point Unit 4 is. currently scheduled for an October 1980 refuelling outage and would get one steam generator inspection before that outage as well as another during that outage.
He also indicated that Turkey Point Unit 3 is ori a 12 month fuel cycle and, to avoid concurrent refuelling outages with Unit 3 and Unit 4 as well as to avoid peak power demand periods, Turkey Point Unit 4 is on a
15 month fuel cycle.
Considerations involved in scheduling the nuclear units in the FPL system in addition to health and safety of the public are such things as economics, service to the customers, radiation doses to the plant personnel, steam generator conditions, etc.
"2-
<<RCH i S mO f
Mr.
C.
0.
Woody (FPL) presented scheduling considerations of both the nuclear and fossil units in the FPL system.
Factors involved include:
1.
The FPL system hit a new peak load recently.
2.
Nucelar unit availability has dropped 10X his year due to TMI and related considerations.
3.
Martin Unit No.
1 (fossil) will be starting in late 1980 rather than June 1980 because of a dam break.
4.
Fossil unit maintenance has been postponed because of things such as mentioned in 2 and 3 above.
5.
Turbine rotors for Unit 4 will be available for installation in May 1980.
6.
EPA update for required air quality improvements of some fossil units is being delayed.
7.
St.
Lucie lessons learned and reload.
Considerations of such factors as the above has led to the urgency of Turkey point Unit 4 to be kept on line until about May 1, 1980.
This is consistent with the FPL application dated May 18, 1979 which requested 10 EFPM of operations for Unit 4.
A presentation of steam generator status and history by D. Malinowski (W) and R. J.
Acosta (FPL} is given in attachment 3 (eleven pages}.
This data is presented in summary form as a backup for the technical basis for continued operation.
During the discussion of this data questions from the NRC staff were answered.
In addition" there was considerable discussion regarding the basics for operation with degraded steam generators.
A summary of the points FPL spoke to during the meeting is as follows.
1.
The presentation imperically supports the technical justification for continued operation until May 1, 1980, or essentially the total of ten EFPM requested in the amendment request dated May 18, 1979.
2.
The Unit 4 steam generators will be inspected during the October refuelling outage regardless of whether the current inspection will be due April 1, 1980 or May 1, 1980.
3.
FPL will investigate the effort required to establish the bases for a ten month operating period versus the current six month period.
"3" MARCH
]
8 1%0 The FPL system is in such a position that economics, environmental improvements and maintenance schedules of fossil units and scheduling of nuclear requirements make operation of Turkey Point 4 a real necessity until May 1, 1980.
The NRC staff made two points regarding the steam generator inspections.
l.
An adequate basis has been given to substantiate the predictability of a six month operating period with degraded steam generators.
2.
An extrapolation of the'rediction capability to operation for ten months is not acceptable without the establishment of an acceptable model for such an operating period.
The next actions to take place regarding the FPL request to operate until May 1, 1980 before inspecting the steam generators are:
1.
The NRC wi 11 prepare meeting summary.
2.
NRC will discuss the meeting with higher management.
3.
FPL will formally submit an amendment request which will include the information presented orally in the meeting.
4.
NRC will respond to the amendment request.
cc: w/enclosures Senior Project Manager Operating Reactors -Branch No.
1
, Division of Operating Reactors
MEETING AGENDA'articipants:
- FPL, NRC, Westinghouse
Subject:
Turkey Point Steam Generator Inspections Date 5 Time:
March 4, 1980 9:00 AM Place:
P 110 Introduction Steam Generator'Inspection outage planning G.
D. Whittier (FPL)
Unit 4 outage planning Ten Month Inspection Program
Background
Current program description Analytical basis Experience C. 0.
Hoody (FPL)
R.
D. Acosta (FPL)
D. Malinowski (Westinghouse) question and Answer Period Summary and Conclusion G.
D. Whittier C. 0.
Hoody
Attachment 2
ATTENDANCE M. Grotenhuis J.
A. DeMastry B.
D. Liaw Dan Malinowski Emmett L. Murphy Daniel Huang Jack Strosnider R. J. Acosta R. A. Kaminsky C. J. Kubit C.
D.
Woody
. C.
W. Hirst G.
D. Whittier NRC-ORB-1 1
FPL I
NRC/NOR/EB Westinghouse NTD NRC/DOR/EB NRC/DOR/EB NRC/DOR/EB FPL FPL Westinghouse NTD F/A Power 8 Light Co.
W NTD FPL I
TURKEY POINT 0'4 PRESENT STATUS Plant operating without steam generator tube leakage eight (8) months since the last gauging inspection; the unit has 20.6Ã of its tubes plugged ~ 23 months beyond closure of the support plate flow slots.
TURKEY POINT ¹4 Results of April, 1979 Inspection No tube leaks Tubelane area tube ID restrictions,(
< 650 mil) fall within 15% strain contour (and 17.5%)
540 mil restrictions, 2 inlet, 1 outlet adjacent to hardspots in or below Row 4 Restrictions adjacent to previous activity Wedge area activity consistent with prior experience Outlet restrictions
( < 610 mils) - 9 total, consistent with earlier Turkey Point behavior No U-bend indications in Rows 2-5 8100kHz No large deviations in annulus measurements Flow slots on ¹1 TSP's exhibit continuing plate expansion
(~ 0.06."/mo)
Reg.
Guide 1.83 inspections resulted in plugging six (6) tubes
TURKEY POINT 84 10 month Plugging Basis All 540 mil restrictions Tubes 3 rows beyond observed 540 mil restrictions in tubelane area (instead of 2 rows) in addition to tubes between tubelane and observed 540 Tubes up to 6 rows beyond observed 540's in Columns 1-13 and 80-92; no less than 3 rows beyond at flow slot edges All 610 mil restrictions plus tubes in tubelane region in columns below observed 610's All tubes adjacent to observed leaking tubes or 54( mil restriction in wedge regions "Valley plugging", islands within active areas on the basis of engineering judgment All 650 mil restrictions on periphery or patchplate boundaries.
TURKEY POINT ¹4 STEAM GENERATOR GAUGING Inspection Date 2/78 8/78 4/79 Strain Contour 12.5X 15%
15K Plugging Basis 10 (Months
~0eratf an No Leaks No Leaks
TURKEY POINT UNIT 4 Number of Leaking Tubes Pet. S/G in Each Year of Operation Year of
~Pl u ln SGA SGB No. of Leaking Tubes SGC 1973 1974 1975 1976 1977 1978 1979 1980 (to 3/1) 0 0
0 0
0 0
0 0
12 2
0 0
0 0
0 0
0 0
SG TOTALS 16 13 GRAND TOTAL 31 Tubes
TURKEY POINT UNIT 4 Number of Tubes Plugged in Each Year of Operation Year of
~Plu
$ n SGA Tubes Plugged SGB SGC Total Tubes Plu ed Shop 1973 1974 1975 1976 1977 1978 1979 1980 (to 3/1) 3 0
33-64 133 255 79 0
0 42 80 151 313 107 52 0
0 0
96 103 175 172 54 0
0 83 240 348 621 534 185 TOTALS 661 746 608 2015 Percentage of tubes plugged:
20.3 22.9
- 18. 9
- 20. 6
TVRXGY POINT UNIT'-
NumegR OP L.GP,VWe TVea5 AMQ
'KRCOHTASE OF TV865 PI.I/@@~0 AT END OF OPERATINC YEAR ISAAC I NG TUSEG
+
r j+
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, TVBGS.
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.+
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c il lO P
0 C
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Vt l975 l91'1 l978 l979 l980
ILIyZ l-~
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30 20 lo g0.6 0
o I8.7 BI 0 g
/
TVUES PLlJGGFO
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IS ~, ///
~~ 6.9 LLAKtNGTUBES'0 l5 lO l973
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0 a 3 I
I I
I97+
I975 l976 I977 YEAR OF, OPER/'ON I978 I979
/780 TURKEY'OINT'JNIT "l NUIVlSF.ROF LEAKlNG TLlBES AND PERCENTAGE OF PLUGGED T'VOBIS CUMULATIVE TO QATE
DENT RELATED STEAN GENERATOR TUBE LEAKS TURKEY POINT /f4 1975 1976 1977 1978 1979 2
leakers:
15 1 eakers:
11 1 eakers:
2 leakers:
0 leakers 1 central TS 1 central TS 1 central TS 3 patchplate 12 tubelane 7 tubelane 1 tubelane 2 wedge '
wedge TOTALS 30 leaker s:
3,central TS 3 patchplate 20 tubelane 4 wedge 0 peripheral
DENT RELATED STEAN GENERATOR TUBE LEAKS TURKEY POINT jj3 1976 1977 1978
.1979-7 leakers:
1 leaker:
1 leaker:
3 leakers:
1 peripheral 1 peripheral 2 patchplate 2 tubelane 1 tubelane 1 tubelane 2 wedge 2 wedge TOTALS 12 leakers:
2 peripheral 2 patchplate 4 tubelane 4 wedge
TURKEY POINT UNITS 3 5 4, LEAK AREAS HISTORICAL
SUMMARY
Last forced outages to repair tube leaks:
~
'/15/78 1 tube 2 tubes H
Last tube leak occurrences in tubelane area:
.7/78 2/15/78 1 tube 1 tube Last tube leak T.PT.3
,T.PT.4 occur ences in periphery:
2/79
. 9/9/76 1 tube 1 tube Last tube leak T.PT.3 T.PT.4 occurrences in patchplate:
3/7/76 2 tubes 3/21/77 1 tube Last tube leak occurrences in unit T.PT.3 T.PT.4 2/79 2/15/78 3 tubes-(Found by Hydro) 2 tubes t
Meeting Summary for Turkey Point 3
& 4 MARCH 1 3 198d
~cet File+
Local PDR ORB1 Reading NRR Reading H. Denton E.
Case D. Eisenhut R. Tedesco G.
Zech B. Grimes M. Gammill L. Shao J. Miller R. Yollmer T. J. Carter A. Schwencer 0.
Ziemann P.
Check G. Lainas
- 0. Crutchfield
- 8. Grimes T. Ippolito R. Reia Y. Noonan G. Knighton D. Brinkman Project Manager OELD OI&E (3)
C. Parrish/P.
Kreutzer ACRS (16)
NRC Participants NSIC TERA Licensee Short Service List