ML18031A061
| ML18031A061 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 12/21/1978 |
| From: | Parr O Office of Nuclear Reactor Regulation |
| To: | Curtis N PENNSYLVANIA POWER & LIGHT CO. |
| References | |
| NUDOCS 7901030036 | |
| Download: ML18031A061 (5) | |
Text
Distribution Docket File NRC PDR Local PDR LWR 5'3 File R.
Boyd Docket Nos.
an 0-38
~
I w/enclosure:
D. Vassallo F. llilliams
- 0. Parr S. Hiner H. Rushbrook R. Hattson D.
Ross J. Knight gfQ 21 R. Tedesco H.
DeYoung V. Moore R. Vollmer H. Ernst
, R. Denise R. Hartfield OELD 1978IE (3)
P. Norian J.
Guttman BCC:
JBuchanan TAbernathy ACRS (16)
Hr. Norman ll. Curtis Vice President - Engineering and Construction Pennsylvania Power and Light Company 2 North Ninth Street Allentown, Pennsylvania 18101
Dear Hr. Curtis:
SUBJECT:
SUSQUEHANNA STEAN ELECTRIC'STATION UNIT NOS.'0 AND 2-REQUEST FOR ADDITIONAL INFORHA'fION As a result of our review of your application for operating licenses for the Susquehanna Steam Electric Plant, we find that we need additional information concerning mass and energy release data from the reactor system.
The specific information required is listed in the Enclosure.
Please inform us of the date when this requested additional information will be available for our review.
Please contact us if you desire any discussion or clarification of the information requested.
Sincerely, Original Signed bY.
- 0. P. Parr Olan D. Parr, Chief
- Light llater Reactors Branch No.>> 3 Division 'of Project Hanagement
Enclosure:
As Stated cc w/enclosure:
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NRC FORM 318 (9-76) NRCM 0240 4 4,0, OOV4IINMONl'NINTINOONNICdl I 000 0 ~ 0 000
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Mr. Norman W. Curtis DEC 21 i978 cc:
Mr. Earle M. Mead Project Manager Pennsylvania Power 5 Light Company 2 North Ninth Street Allentown, Pennsylvania 18101 Jay Silberg, Esq.
Shaw, Pittman, Potts 5
Trowbridge 1800 M Street, N.
W.
Washington, 0.
C.
20036 Mr. William E. Barberich, Nuclear Licensing Group Supervisor Pennsy'lvania Power 5 Light Company 2 North Ninth Street Allentown, Pennsylvania 18101 Edward M. Nagel, Esquire General Counsel and Secretary Pennsylvania Power 8 Light Company 2 North Ninth Street Allentown, Pennsylvania 18101 Bryan Snapp, Esq.
Pennsylvania Power 5 Light Company 901 Hamilton Street Allentown, Pennsylvania 18101 Robert M. Gallo Resident Inspector P. 0.
Box 52 Shickshinny, Pennsylvania 18655
ENCLOSU E
RE UEST FOR A001TIOUAL IhFOR.'QTiO'i SUS Ue.HANNA Sir.AN iLECIRiC STAT iCli OOCKET HOS.
50-387 A'(0 50-388 222.0 S stem Anal sis Section, Anal sis Branch Describe in detail how the feedwater line and recirculation line short term mass and energy release
- rates, used in the annulus pressurization and loading calculations, were determined.
Provide, separately, as a function of time, the mass flux (ibm/sec/ft
) and areas used for each side of the break (the reactor vessel side and the inventory or,long pipe side).
List all assumptions and conservatisms used.
If a hand calculation was used for this analysis, document the work done.
One second after a postulated steam line break, a quality
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less than 1.0 was assumed to exit the rupture.
This may provide the limiting containment pressurization, but may not provide the limiting containment'emperature.
Assuming 1005 efficiency for the steam separators and dryers, provide the mass and energy release rates which would occur with a 1.0 break quality.
Show that this would not provide the limiting condition for the drywell and suppression pool temperature.
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