ML20207J702

Forwards Request for Addl Info in Order to Continue Review of 860404 Submittal Re Main Steam Line Break Outside Containment W/Superheated Steam Release Analysis.Response Requested within 45 Days of Ltr Receipt

ML20207J702
Person / Time
Site:	Callaway
Issue date:	01/06/1987
From:	Oconnor P Office of Nuclear Reactor Regulation
To:	Schnell D UNION ELECTRIC CO.
References
NUDOCS 8701080562
Download: ML20207J702 (3)

Text

.

r Docket No.: 50-483 6 JP.M D3I Mr. Donald F. Schnell Vice President - Nuclear Union Electric Company Post Office Box 149 St. Louis, Missouri 63166

Subject:

Request for Additional Information Related to the Sf!!!PPS Main Steam Line Break Outside Containrrent with Superheated Steam Pelease Analysis The staff is continuing its review of your submittal dated April 4,1986.

To permit us to continue our review on our current schedule, we require the infonnation requested in Enclosure 1 to this letter be provided.

Please provide the requested infonnation within 45 days of your receipt of this letter.

Sincerely, i

Paul W. O'Connor, Project Manager PUR Project Directorate #4 Division of PWR Licensing-A

Enclosure:

As stated cc: See next page Distribution:

( Docket F1l g NRG FDP Local PDR PRC System PWR#4 Rdg MDuncan P0'Connor ACRS (gblood BJYoun 10)

OGC/Bethesda JPartlow BGrimes EJordan NThompson I)fi PWR#4/DPWR-A PW

/ PWR-A PWr3/ y

!R-A P0'Connor/ rad MD BJYi lg cod 01/5"/87 01/

/87 01/

'8 8701080562 870106 PDR ADOCK 05000403 A

PDR

PRESSURE AND TEMPERATURE PROFILES FOR PIPE RREAKS OUTSIDE CONTAINMENT The following information is required for the limiting pipe break analysis performed:

1.

With respect to the nodalization schemes, provide:

A.

Number of nodes (compartments) analyzed; R.

For each node (compartnent):

I.

Initial temperature II.

Initial pressure III.

Initial humidity IV. Compartment free volume V.

Number of vents and vent area (square feet) for each vent; and VI. Compartment height (feet);

C.

Simple nodalization diagrams; D.

Identification of break compartment, and relative locations of safety related equipment; E.

Number, volume, surface area, and material properties of thermal sinks within compartments; F.

Descriptions of equipment and thermal models of the equipment, including geometry (surface area and volume), material properties (density, thernal conductivity, specific heat) of all materials included in equipment models and sketches of equipment models.

P.

All assumptions used, including but not limited to the following:

A.

Junction loss coefficients; 8.

Heat transfer coefficient for heat transfer through walls; C.

Condensation model used 3.

Analysis Results:

A.

Compartment temperature versus time curve (peak temperature specified);

B.

Compartment pressure versus time curve (peak pressure specified);

C.

Equipment temperature versus time curve (peak temperature specified) for each piece of equipment; D.

Equipment qualification temperature; E.

Identification of locations for A., B. and C.,

if spatially varying within a compartment.

(-

t l

l Mr. D. F. Schnell Callaway Plant l

Union Electric Company Unit No I cc:

Mr. Nicholas A. Petrick Lewis C. Green Esq.

Executive Director - SNUPPS Green, Hennings & lienry 5 Choke Cherry Road Attorney for Joint Intervenors Rockville, Maryland 20E50 314 N. Broadway, Suite 1830 St. Lcuis, Missouri 65251 Gerald Charnoff, Esq.

Thomas A. Baxter, Esq.

f!s. ?!arjorie Reilly Shaw Pittr:an, Potts & Trowbridge Energy Chairran of the League of 2300 N Street, N. W.

Ilomen Voters of Univ. City, M0 Kashington, D. C.

20037 7065 Pershing Avenue University City, Missouri 63130 Pr. J. E. Eirk Assistant to the General Counsel Mr. Donald Bollinger, l' ember Union Electric Ccc.pany ftissourians for Safe Energy Post Office Box 149 CP67 Celirar Boulevard St. Louis,f!isscuri 63166 University City, Missouri 63130 U. S. Nuclear Regulatory Conmission Mr. Dan I. Bolef, Presidtnt l

Resident Inspectors Office Kay Drey, Pepresentative RRr1 Board of Directors Coalition Steedman,!!issouri 65077 for the Environment St. Louis Pecion l'r. Donald W. Capone, Manager 6267 Delmar Poulevard i

Nuclear Ergineering University City, !!issouri 63130 Union Electric Company l

Post Office Box 149 St. Louis, fitsscuri 63166 Chris R. Rogers, P.E.

l'anager - Electric Departrent 301 W. High Post Office Box 360 Jefferson City, Missouri 65102 Regional Administrator U. S. hRC, Region III 799 Pcott:velt Road Glen Ellyn, Illinois C0137 Pr. Pcnald A. Kucera, Deputy Director Departirent of Natural Resources P. O. Box 176 Jefferson City, flissouri 65102 lir. Glenn L. Koester Vice President - Nuclear Kansas Gas and Electric Cotopany 201 North Market Street Post Office Box 208 Wichita, Karus 67201

-