ML19323B234
| ML19323B234 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/16/1980 |
| From: | Jay Collins Office of Nuclear Reactor Regulation |
| To: | Arnold R METROPOLITAN EDISON CO. |
| References | |
| CON-NRC-TMI-80-064, CON-NRC-TMI-80-64 NUDOCS 8005120112 | |
| Download: ML19323B234 (5) | |
Text
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NUCLEAR REGULATORY COMMiSslON
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WASHINGTON, D. C. 20555 2j
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April 16, 1980 f1RC/Ttil-80-064 Docket No. 50-320 Mr. R. C. Arnold Senior Vice President Metropolitan Edison Company 100 Interpace Parkway Parsippany, flew Jersey 07054
Dear Mr. Arnold:
Subject:
Mini Decay Heat Removal Overpressurization from Steam Generator Bur'p We have reviewed the two letters, TMI-II-R-1219 dated January 9,1980, and TMI-II-R-1194 dated December 17, 1979, concerning precautions to be taken in preventing the MDHR system from overpressurization due to steam generator " burps".
In the latter letter, three options were recommended.
They are:
(1) maintain letdown at 1.8 gpm when RCS temperature is above 150 F; (2) introduce a gas vo.ume of 38.0 cu. ft. at 80 psi and have no 0
letdown; and (3) reduce Reactor Coolant System (RCS) temperature to below 0
1200F with the reactor building temperature (RB) maintained above 80 F and have no letdown.
It appears that you reconmend to implement option (3).
We concur, however, we believe that a further study should be performed in order to determine the best way of achieving and maintaining the RCS and RB temperature conditions prior to the f1DHR system operation.
Some of our concerns are addressed in the following questions:
a.
What assurance is there in maintaining the RB temperature above 800F? The RB temperature has ranged from 75 F to 80 F with one pump running, but without the evaporation cooler functioning (our understanding). With RB pump shut off can the temperature climb to higher than 800F or do fans also have to be shutdown? Secondly, how will the RCS temperature be reduced to and maintained at 1200F7 b.
For " option 3, it is stated that letdown will have to be maintained 0
while using the t1DHR until the primary system is below 120 F.
This will create some waste via the letdown line. We request that you provide information concerning the activation of the OTSG "B" loop long-term cooling system for RCS temperature reduction down to 1200F, and then activation of the tiDHR system.
a Mr. R. C. Arnold 2
April 16,1980
'In conclusion, we request that the above concerns be evaluated and the results b.e reflected in the MDHR system operating procedure so as to include appropriate precautions in precluding MDHR overpressurization from steam generator burps.
,du;Fc:n John T. Collins Deputy Program Manager TMI Program Office cc: See Distribution List r
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Metropolitan Edison Company Mr. G. K. Hovey J. B. Lieberman, Esquire Director, TMI-2 Berlock, Israel, Lieberman Metropolitan Edison Company 26 Broadway P. O. Box 480 New York, NY 10004 Middletown, PA 17057 George F. Trowbridge, Esquire Mr. J. J. Barton Shaw, Pittman, Potts & Trowbridge Manager, Site Operations, TMI-2 1800 M Street, N.W.
Metropolitan Edison Company Washington, DC 20036 P. O. Box 480 Middletown, PA 17057 Ms. Mary V. Southard, Chairperson Citizens for a Safe Environment Mr.' R. W. Heward P. O. Box 405 Radiological Control flanager, TMI-2 Harrisburg, PA 17108 Metropolitan Edison Company P. O. Box 480 Dr. Walter H. Jordan Middletown, PA 17057 881 W. Outer Drive Oak Ridge, TP 37830 Mr. B. Elam Manager, Plant Engineering Dr. Linda W. Little Metropolitan Edison Company 5000 Hermitage Drive P. O. Box 480 Raleigh, NC 27612 Middletown, PA 17057 Karin W. Carter, Esquire Mr. R. F. Wilson 505 Executive House Director, Technical Functions P. O. Box 2357 Metropolitan Edison Company Harrisburg, PA 17120 P.O. Box 480 Middletown, PA 17057 Honorable flark Cohen 512 E-3 Main Capital Building Mr. L. W. Harding Harrisburg, PA 17120 Supervisor of Licensing Metropolitan Edison Company Ellyn Weiss, Esquire P. O. Box 480 Sheldon, Harmon, Roisman & Weiss i g on Db 2 bb6 Licensing Manager Mr. Steven C. Sholly GPU Service Corporation 304 S. ilarket Street 100 Interpace Parkway Mechanicsburg, PA 17055 Parsippany, NJ 07054 Mr. Thomas Gerusky Mr. I R. Finfrock, Jr.
Bureau of Radiation Protection Jersey Central Power & Light Company P. O. Box 2063 Madison Avenue at Punch Bowl Road Harrisburg, PA 17120 Morristown, NJ 07950 Mr. Marvin I. Lewis Mr. R. W. Conrad 6504 Bradford Terrace Pennsylvania Electric Company Philadelphia, PA 19149 1007 Broad Street Johnstown, PA 15907 Ms. Jane Lee R. D. 3, Box 3521 Etters, PA 17319
4 Mr. R. C. Arnold 4
Metropolitan Edison Company Walte'r W. Cohen, Consumer Advocate Ms. Kathy McCaughin Department of Justice Three Mile Island Alert, Inc.
Strawberry Square,14th Floor 23 South 21st Street Harrisburg, PA 17127 Harrisburg, PA 17104 Robert L. Knupp, Esquire Ms. Marjorie H. Aamodt Assistant Solicitor R. D. #5 Knupp and Andrews Coatesville, PA 19320 P. O. Box P 407 N. Front Street Ms. Karen Sheldon Harrisburg, PA 17108 Sheldon, Harman', Roisman & Weiss 1725 I Street, N.W., Suite 506 John E. Minnich, Chairperson Washington, DC 20006 Dauphin Co. Board of Commissioners Dauphin County Courthouse Earl B. Hof fman Front and Market Streets Dauphin County Commissioner Harrisburg, PA 17101 Dauphin County Courthouse front and Market Street Robert Q. Pollard Harrisburg, PA 17101 Chesapeak Energy Alliance 609 Montpelier Street Government Publications Section Baltimore, MD 21218 State of Library of Pennsylvania Box 1601 Education Building Chauncey Kepford Harrisburg, PA 17127 Judith H. Johnsrud Environmental Coalition on Nuclear Poder Dr. Edward 0. Swartz 433 Orlando Avenue Board of Supervisors State College, PA 16801 Londonderry Township RFD #1 Geyers Church Road Ms. Frieda Berryhill, Chairperson Middletown, PA 17057 Coalition for Nuclear Power Plant Postponement U. S. Environmental Protection Agency 2610 Grendon Drive Region III Office Wilmington, DE 19808 ATTN:
EIS COORDINATOR Curtis Building (Sixth Floor)
Holly S. Keck 6th and Walnut Streets Anti-Nuclear Group Representing, York Philadelphia, PA 19106
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245 W. Philadelphia Street York, PA 174D4 Dauphin County Office Emergency Preparedness John Levin, Esquire Court House, Room 7 Pennsylvania Public Utilities Commission Front and Market Streets P. O. Box 3265 Harrisburg, PA 17101 Harrisburg, PA 17120 Department of Enviornmental Resources Jordon D. Cunningham, Esquire ATIN:
Director, Office of Fox, Farr and Cunningham Radiological Health 2320 H. Second Street P. O. Box 2063 Harrisburg, PA 17110 Harrisburg, PA 17105 e
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Mr. R. C. Arnold 5
4 Metropolitan Edison Company Governor's Office of State, Planning and Development ATTN: Coordinator, Pennsylvania Clearinghouse j
P. O. Box 1323 Harrisbuig, PA 17120 Mrs. Rhoda D. Carr 1402 Marene Drive Harrisburg, PA 17109 Mr. Richard Roberts The Patriot i
812 Market Street Harrisburg, PA 17105 Mr. Robert B. Sorsum Babcock & Wilcox Nuclear Power Generation Division Suite. 420, 7735 Old Georgetown Road Bethesda, MD 20014 Ivan W. Smith, Esquire l
Atomic Safety and Licensing Board U. S. Nuclear Regulatory Commission' l
Washington, DC 20555 Atomic Safety and Licensing Board Panel U. S. Nuclear Regulatory Commission Washington, DC 20555 Atomic Safety and Licensing Appeal Panel U. S. Nuclear Regulatory Commission Washington, DC 20555 Docketing and Service Section U. S. Nuclear Regulatory Commission Washington, DC 20555 i
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