ML19254D991
| ML19254D991 | |
| Person / Time | |
|---|---|
| Site: | Atlantic Nuclear Power Plant  |
| Issue date: | 10/17/1979 |
| From: | Baer R Office of Nuclear Reactor Regulation |
| To: | Collier A OFFSHORE POWER SYSTEMS (SUBS. OF WESTINGHOUSE ELECTRI |
| References | |
| NUDOCS 7910300405 | |
| Download: ML19254D991 (5) | |
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,9, UNITED STATES
%# cy i NUCLEAR REGULATORY COMMISSION
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%, %'.....f COT 17 ;gg Docket No. STN 50-437 Mr. A. R. -Collier President Offshore Pcwer Systems P. O. Box 8000 8000 Arlington Expressway Jacksonville, Florida 32211
Dear Mr. Collier:
THERMAL-HYDRAULIC DESIGN - REQUEST FOR ADDITIONAL INFOR*!ATION
SUBJECT:
(Floating Nuclear Plants 1-8)
In our review of your application for a manufacturing license we nave identified several items in the thermal-hydraulic area requiring some additional information.
The Enclosure describes these items.
Your prompt response to these matters will enable us to complete our evaluation.
Sincerely,
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Y fM9 Robert L. Baer, Chief Light Water Reactors Branch No. 2 Division of Project Management
Enclosure:
Request for Additional Information ecs w/ enclosure:
See next pages 1236 001 7010306 toS
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a F. C. Ecx 8000 EGC0 Arlington Expressway Jacksonville, Florida 32211 cc: Vincent W. Campbell, Esq.
Vice President & General Counsel O'fshore Powr Systens P. O. Eox 8000 8000 Arlington Expressway Jacksonville, Florida 32211 Tncaas M. Daugherty, Esq.
Cffshore Power Systems P. O. Box 8000 8000 Arlington Expressway Jacksonville, Florida 32211 Barton Z. Cowan, Esq.
Ec kert, Seamans, Cherin & Mellott 600 Grant Street, 42nd Floor Pittsburgh, Pennsylvania 15219 Franklin H. Berry, Jr., Esq.
County Counsel County of Ocean P. O. Box 757 34 Washington Street Tor: River, New Jersey 08753 Anthony Z. Roisman, Esq.
Natural Resources Defense Council 9 17 15th Street, N. W.
Washington, D. C.
20005 Dr. Glenn L. Paulson Assistant Conmissioner State of New Jersey Department of Environmental Protection Labor and Industry Building John Fitch P1aza Trenton, New Jersey 08625 Keith A. Onsdorff, Esq.
F.i ri an N. Span, Esq.
Assistant Ceputy Public Advocates 520 East State ' Street Pcs: Cf fice Box 141 Trenton, New Jersey 08625 1236 002
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'. A. R. Collier cc:
Park L. First, Esq.
New Jersey State Deputy Attorney General State house Annex Trenton, New Jersey 08625 Carl Valore, Jr., Esq.
Valore,. ft Allister, CeBrier, Aron & Westmoreland Painland Professional Plaza 535 Tilton Road P. 0. Box 152 Northfield, New Jersey 08225 Mr. Harold P. Abrams 9100 Amherst Avenue Margate, New Jersey 08402 Dr. Willard W. Rosenberg 8 fi.' orth Ru. son Avenue Margate, New Jersey 08402 Mr. John Williamson 211 Forest Drive Linwood, New Jersey 08221 Ha rold P. Green, Esq.
Fried, Frank, Harris, Shriver and Kampelman Suite 1000, The Watergate 600 600 New Hampshire Avenue, N. W.
Washington, D. C.
20037 Nuclear Coordinator Office of Perchant Parine Safety Ccmandant (GMMT-4 )
U. S. Coast Guard Washington, D. C.
20590 Pr. Mitchell Attalla 4028 Ponce CeLeon Avenue Jacksonville, Florida 32217 Mr. Reg CrcWer Jacksonville Jcurnal P. G. Sox 1949 Jacksenville, Florida 32201 t
1236 003
.r. A. 2 Ccilier cc: Shelcon J. Wolfe, Esq., Chairman
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Atomic Safety and Licensing Board U. S. Nuclear Regulatory Comission Washington, D. C.
20555 Dr. David R. Schink Departcent cf Oceanngraphy Texas A. & M. University College Station, Texas 7784r.
Mr. Gl enn 0. Bright Atomic Safety and Licensing Loard U. S. Nuclear Regulatory Comission Washington, D. C.
20555 Richard S. Salman, Esq., Chairman Atomic Safety and Licensing Appeal Board U. 5. Nuclear Regulatory Comission Washington, D. C.
20555 Dr. John H. Buck Atomic Safety and Licensing Appeal Board U. S. Nuclear Regulatory Comission Washington, D. C.
20555 Mr. Michael C.. Farrar Atomic Safety and Licensing Appeal Board U. S. Nuclear Regulatory Comission Washington, D. C.
20555 1236 004
ENCLOSURE OCT 1 7 979 1
REACTGR ANALYSIS SECTION, ANALYSI3 BRANCH 221.1 Provide the radial pressure gradient in the upper and lower plenums (4.4) and at the core inlet and outlet for steady state and transient conditions for each allowable loop configuration.
Provide an expla-nation of how the radial pressure gradients are included in the thermal-h draulic design calculations.
Discuss and support by 3
calculations, the differences in hot channel pressure drop, flow, enthalpy rise and minimum DNBR relative to the assumption of a uni-form pressure at the core boundaries.
221.2 Provide an explanation of how the effects en the core flow and (4.4) pressure drop of possib e crud deposits ara included in the thermal-hydraulic design Provide a description of the instrumentation available which would alert the reactor operator to On abnormal core flow or core pressure drop during steady-state operation.
2 21.3 Provide a commitment to address the following aspects of rod bowing (4.4) in the FSAR for plants referencing FNP (1-8):
1.
to fully define the gap closure rate _ for prototypical bundles; 2.
to determine by appropriate experiments the DNB effects that bounds the effect of gap closurr 3.
to include the effects of rod bowing in the final design and safety analysis calculations.
221.4 Floating Nuclear Plants (1-8) used the HYDNA code to describe the (4.4) effect of open channel flow on thermal-hydraulic flew instability.
Information supplied by Westinghouse has been insufficient to support a conclusion that the DYDPA code conservatively predicts the onset of flow instability in the core.
To support such a conclusion, either (1) provide a complete description of the HYNDA code and its use in the analysis, or (2) provide a discussion excluding the HYDNA code which supports the contention that the core is thermal-hydraulically stable.
1236 005