ML18030A234
| ML18030A234 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 03/25/1981 |
| From: | Curtis N PENNSYLVANIA POWER & LIGHT CO. |
| To: | Youngblood B Office of Nuclear Reactor Regulation |
| References | |
| ER-100450, PLA-678, NUDOCS 8103270686 | |
| Download: ML18030A234 (5) | |
Text
REGULATO INFORMATION DISTRIBUTION
'E'4 (BIDS)
ACCESSION NBRi8103270686
'DOC ~ DATE: 81/03/25 NOTARIZED:
NO FACIL:
Susquehanna Steam Electr ic Station< Unit i~ Pennsyl va 50 388 usquehanna Steam Electric Stations Unit 2i Pennsylva A
AUTHOR AFFILIATION CURTI S g N ~ l4 ~
Pennsylvania Power K Light Co ~
RKCIP ~ NAME RECIPIENT AFFILIATION YOUNGBLOODiB ~ J ~
Licensing Branch 1
DOCKET 05000387 05000388
SUBJECT:
Forwards util response to FSAR Questions 230 '~230 F 6 8
230,7 'nits will not be operated in natural circulation mode or w/only one recirculation pump in operations Stability analysis will be performed for second cycle ~
DISTRIBUTION COOK:
B001S COPIES RECEIVED:LTR Q'NCL TITLE: PSAR/FSAR AMDTS and Related Correspondence NOTES:Send ILE 3 copies FSAR rl all
- amends, Send ILE 3 copies FSAR 5 all amends'IZEo 05000387 05000388 RECIPIENT ID COOK/NAME ACTION:
A/D LICENSNG RUSHBROOKIM ~
INTERNAL: ACCID EVAL BR26 CHKM ENG BR 08 CORE PERF BR 10 EMERG PRFP 22.
GEOSCIENCES 14 HYD/GKO BR 15 IRK 06 LIC QUAL BR MECH ENG BR 18 NRC PDR 02 OP LIC BR PROC/TST REV 20 O~~~S S R2 2 G FIL 01 S
UCT ENG BR25 COPIES LTTR ENCL 1
0 1
0 1
1 1
1 1
1 0
1 1
2 2
3 3
1 1
1 1
1,1 1
1 1
1 1
1 1
1 1
REC IP IENT ID CODE/NAME YOUNGBLOODgB STARKgR ~
04 AUX SYS BR 07 CONT SYS BR 09 EFF TR SYS BR12 EQUIP QUAI. SR13 HUM FACT FNG BR ILC SYS BR 16 LIC GUID BR NATL FNG BR 17 MPA OELD POKIER SYS BR 19 QA BR 21 RKAC SYS BR 23 SIT ANAL BR 24 SYS INTERAC BR COPIES LTTR ENCL 1
0 1
1 1
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3 3
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1 EXT'ERNAL~
LPDR 03 1
1 TOTAL NUMBER OF COPIES REuUIRED:
LTTR 57 Er~CL 51
)f
TWO NORTH NINTH STREET, ALLENTOWN, PA. 1810'I PHONE: (215) 770-5151 CQ NORMAN W. CURTIS Vice Prestdent-Engtneertng IL Construction-Nuclear 770 5381
>'i~" 2 6 198t U >
NtrCLTAR aRIULATORY COALMIjlRIN Mr. B.J.
Youngblood, Chief Licensing Branch 1
U.S. Nuclear Regulatory Commission Washington, D.C.
20555 March 25, 1981 Susquehanna Steam Electric Station
Response
to Ouestions 230.5, 230.6 and 230.7 ER 100450 File 841-2 PLA-678 Docket Nos.
50-387 and 50-388
Dear Mr. Youngblood:
Attached are the responses to FSAR guestions 230.5, 230.6 and 230.7.
Very truly yours, N.W. Curtis Vice-President-Engineering and Construction-Nuclear cc:
R.M. Stark bcc:
N.W. Curtis W.E. Barberich B.A.
Snapp C.T. Coddington R.J.
Shovlin pool 5
PENNSYLVANIA POWER 5
LIGHT COMPANY 8> 0327 0<
SSES-FSAR The staff is performing a generic study of the hydrodynamic stability characteristics of LNRs under normal operation, anticipated transients, and accident, conditions.
The results of this study will be applied to the staff review and acceptance of stability analyses and analytical methods now in use by the reactor vendors.
In the interim, the staff concludes that past operating experience, stability tests, and the inherent thermal-hydraulic characteristics of LWRs provide a basis for accepting the Susquehanna stability evaluation for normal operation and anticipated transient events.
However, in order to provide additional margin to stability limits, natural circulation operation of Susquehanna will be prohibited until the staff review of these conditions is complete.
Any action resulting from the staff study will be applied to Susquehanna.
RESPONSE
PPSL does not plan to operate the Susquehanna units in the natural circulation mode.
The plant technical specifications are consistent with your position, and require that appropriate actions be taken if no recirculation loops are in operation.
Rev. 22, 4/Sl 230.5-1
SSES-PSAR QUESTION 230.6:
I Because the Susquehanna stability analysis is, for the first cycle only, a new analysis must be reviewed and approved by the staff prior to second cycle operation.
RESPONSE
PPSL will perform a stability analysis for the second cycle of operation.
Rev.
22, 4/81 230.6-1
SSES-FSAR I
No analysis has been presented for MCPR limits or stability characteristics for one loop operation.
One loop operation will not be permitted until supporting analyses are provided and are approved by the staff.
I I
REIpONBE:
PP&L does not plan to operate the Susquehanna units with only one recirculation loop in operation, therefore, no additional analysis are required.
The plant technical specifications are consistent with your
- position, and require that appropriate actions be taken with one recir-culation loop not in operation.
Rev.
22, 4/81 230.7-1