ML20126J886

Rev 0 to Structural Steel Analysis for Peach Bottom Generating Station:Calculation 92,Unit 2,3,Turbine Bldg El 116 Ft Conventional Chemistry Lab,Fire Area 78D

ML20126J886
Person / Time
Site:	Peach Bottom
Issue date:	05/24/1985
From:	Dewey J, Melly B PROFESSIONAL LOSS CONTROL, INC.
To:
Shared Package
ML20126J788	List: ML20126J783 ML20126J825 ML20126J840 ML20126J858 ML20126J886 ML20126J909 ML20126J926 ML20126J952 ML20126J976 ML20126J990
References
NUDOCS 8506100725
Download: ML20126J886 (5)

Text

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[ Professional Loss Control, Inc.

STRUCTURAL STEEL ANALYSIS for PEACH BOTTOM GENERATING STATION Calculation No. 92 Unit 2,3 Turbine Building El. 116#-O" Conventional Chemistry Lab Fire Area 78D

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Prepared by: ___ _

Date:

Reviewed by: h_b h Revision: 0 8506100725 850606 PDR ADOCK 05000277 F PDR 1

7922 West Chester Pike e Upper Darby, Pa. 19082 * (216) 853 1700

e Profusionallas Cantrol. inc.

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PEACH BOTTOM GENERATING STATION

1. AREA _ggggRIPTIgN The area under consideration is the Conventional Chemistry Room on the 116'-O" elevation of the Turbine Building (Fire Area 78D). The bounding walls are constructed of reinforced concrete with an everage thickness of 1 ft. The total surface area for heat transfer is 3,690 ft 2 (see Attachment A for a sketch of the area under consideration).

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2. ggggggIInkg_LgegIgg There are no combustible liquids or cable traya located in this area. .

3. yggIIL6IIgg_gegangIgag There are two doors which enter this area.

geeE_ __gise__ Lesstien 116 3'-O"x 7'-O" West Wall 117 3'-O"x 7'-O" South Wall l

C. g63Eg_gg6HINEg Since there are no exposed fixed combustibles in this area, no i

cases were examined for a general room fire.

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No general room fire was postulated because of the lack of exposed fixed combustibles in the area.

There are no cable traya in this area to present a localized heating exposure to*the structural steel.

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This area contains no exposed fixed combustibles. The table below lista the maximum heat release rate for transient combustibles for different fire durations which result in an area temperature less than 11000F. j ELEe_Duratien 946_ihN4m21 91hW1 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />' 10.5 3,599 2 houra 8.0 2,743 3 houra 6.5 2,228 The distance between the floor and the deepeat beams supporting ,

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, I the ceiling in 16*-8 1/2". The heat release rates required of j l floor level transient combustible fires to produce plume l

temperatures of 11000F, 13OOOF and 15000F at the bottom

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flange of the beam have been determined and tabulated below. For the temperatures greater then 11000F the time required to heat the sizes of the beams supporting the ceiling have also been determined.

Ilme_te_1199 Elmini II 1 91hW1 _W16_u_96_

1100 7,257 -

1300 9,549 38 1500 12,042 26

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Unit 2,3' Turbine Building Elevation 116'-0"

- Conventional Chemistry Lab Surface Area Calculation Walls tiorth wall 15' x 18 270 ft 22 East wall 30' x 18 . 540 ft 2 South wall 15' x 18 270 ft 2 West wall 30' x 18e 540 ft 1,620 ft Ceiling (30' x 15') 450 ft 2 2,070 ft Total Surface Area for Heat Transfer 3,690 ft 2 ATTAtlittEf1T A