ML18065A597

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Evaluation of Effects of Fire on West Wall of Turbine Lube Oil Room Adjacent to Pipe Tunnel Between TB & FW Purity Bldg.
ML18065A597
Person / Time
Site: Palisades Entergy icon.png
Issue date: 03/23/1996
From: YOUNG L D
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
Shared Package
ML18065A596 List:
References
EA-FPP-95-054, EA-FPP-95-054-R01, EA-FPP-95-54, EA-FPP-95-54-R1, NUDOCS 9604080137
Download: ML18065A597 (39)
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{{#Wiki_filter:* Power EA-FPP-95-054 @) consumers PllWU111111 MICllJliAl/l'S Pll8&IUS PALISADES NUCLEAR PLANT ENGINEERING ANALYSIS COVER SHEET Total Number of Title of Effg,t§ Qf s_ Eire oa tbe West of tbe Qil BoQID s9is,gat to Iuaael tbe Iyrbjae RYil9iag 2nd tbg aYil9iag, INITIATION AND REVIEW Calculation Status Preliminary Pending Final Superseded D D

  • D Initiated

!nit Review Method Technically Reviewed Revr Rev Appd Appd CPCo # Descripti6n By Detail Qual By Appel Bv Date Alt Cale Review Test Bv Date 0 Original Issue LDYoung 12/12/95 DAC "' RWPhil ips 1/17/96 RLS PFB 9f'

  • ti lfJ 1 Revised to "Final" based on 3/23/96 "'

conment resolution. LDYoung I -..,

  • 1.0 OBJECTIVE The purpose of this Engineering Analysis is to show the impact of a fire-on the West wall of the Turbine Lube Oil Room adjacent to the tunnel travelling between the Turbine Building (EL. 590'-0") and the F eedwater Purity Building.

Specifically, the analysis will consider the equivalent fire resistance of the barriers, combustible loading within the rooms and suppression and detection. Through these considerations, this.analysis will demonstrate the ability of the system as a whole to prevent a direct fire exposure hazard to safety related equipment or openings in other fire area barriers required to meet NRC guidelines.

2.0 ANALYSIS

INPUT 2.1 Consumers Power Co. Palisades Nuclear Plant Drawings: A-108, Rev. 1 F eedwater Purity Modification, Architectural, Pipe Gallery C-825; Rev. 2 Feedwater Purity Modification, Pipe Gallery, Foundation. & Floor Slab Plans -Area 8, 14 & 15

  • M-216, Sh. 5 Rev. 3 Fire Protection, Reactor Building, Plan of EL. 590'-0" r* M-216, Sh.14 Rev. 5 Fire Protection, Turbine Building, Plan of EL. 590'-0" --*;--* 1 --* 2.2 t National Fire Protection Ass.o.ciation_Eire Protection Handbook, 17th Edition. J. 9604080137 960401 -\ _ PDR.
! ....
'. _ , . G PDR b

@)consumers Power PALISADES NUCLEAR PLANT ANALYSIS CONTINUATION SHEET EA-FPP-95-054 fl'flWUU1I&

2.3 Palisades

Nuclear Plant Engineering Analysis EA-FPP-95-11, Analysis of Combustible Loading for Fire Area 22, Turbine Lube Oil Room. 2.4 Palisades Nuclear Plant Engineering Analysis EA-FPP-95-18, Analysis of Combustible Loading for Fire Area 23D, Turbine Building -General. 2.5 Palisades Nuclear Plant Fire Hazards Analysis, Revision 2, February 1, 1989. 2.6 Palisades Nuclear Plant Fire Protection Program Report (FPPR), Volume 2, Section VIII; List of Changes to Appendix A to Branch Technical Position APCSB and Regulatory Guide l.78 and l.101, Revision 1, October 26, 1989. 2.7 Palisades Nuclear Plant Fire Protection Program Report (FPPR), Volume 3, Section IX, #46. 2.8 U.S. Nuclear Regulatory Commission (NRC) Generic Letter 86-10, Implementation of Fire Protection Requirements, April 24, 1986. 2.9 NRC Standard Review Plan NUREG-0800, BTP CMEB 9.5-1, Guidelines for Fire Protection for Nuclear Power Plants, Revision 2, July 1981. 2.10 FPETOOL: Fire Protection Engineering Tools for Hazard Estimation, Version 3.0, National Institute of Standards and Technology, October 1990. 2.11 Palisades Nuclear Plant Engineering Analysis EA-APR-95-001, Appendix R Safe Shutdown Equipment List and Logic Diagrams. 2.12 Methods of Quantative Fire Hazard Analysis, EPRI Research Project 3000-37, by F.W. Mowrer, dated May 1992. 2.13 Palisades Nuclear Plant Engineering Analysis EA-FPP-96-012, System Hydraulic. Analysis for the Lube Oil Storage Room. 2.14 Palisades Nuclear Plant Engineering Analysis EA-FPP-96-013, System Hydraulic Analysis for the M-18 Area. 2.15 National Fire Protection Association, Automatic Sprinkler Systems Handbook, 6th Edition .

  • ASSUMPTIONS None Sheet Rev # ___.._O __

(@consumers Power flflWElllNfj MKBl&A#'S l"llD&laS PALISADES NUCLEAR PLANT ANALYSIS CONTINUATION SHEET 4.0 ANALYSIS 4.1 General General Guidelines for Plant Protection are discussed in the List of Changes and Response to Appendix A to BTP APCSB 9:5-1 and Regulatory Guide 1. 78 and 1.101, Subsection D.1.j. The regulatory position states that concerning compartmentation " ... Floors, walls and ceilings enclosing separate fire areas should have minimum fire rating of three hours." It then goes on to state that " ... The fire hazard in each area should be evaluated to determine barrier requirements." Also, ... "If barrier fire resistance cannot be made adequate, fire detection and suppression should be provided ... " Based upon the above statements, it is apparent that the analysis of a specific barrier for acceptability should subsequently follow this order .of importance:

a. The capability of the barrier must satisfy the minimum fire rating guideline of 3-hours. If not then;
  • b. The barrier must be adequate to withstand the actual combustible
  • loading in the fire areas separated by the barrier. If not then; c. The actual configuration must be reviewed in order to take credit for other systems or circumstances that may increase acceptability of the barrier (e.g. suppression, *detection, etc ... ). This analysis is based upon the above three criteria.

It shall be used to demonstrate the capability of the fire barrier and its supporting systems to adequately prevent the spread of fire through the pipe tunnel separating the Feedwater Purity Building and the Turbine Building (EL. 590'-0"). Additional regulatory guidance is provided in NUREG 0800, Section 9.5.1, sub-section C.7.h, "Turbine Building," which states, in part: The turbine building should be separated from adjacent structures containing safety-related equipment by a fire barrier with a minimum rating of 3 hours.... Openings and penetrations in the fire barrier should be minimized and should not .be located where the turbine lube oil or generator hydrogen cooling system creates a direct fire exposure hazard to the barrier. Considering the severity of the fire hazards, defense in depth may dictate additional protection to ensure barrier integrity. In summary, the regulatory goal of the Turbine Lube Oil Room walls is to prevent. a direct exposure fire hazard to either safety related equipment or openings and penetrations in fire barriers containing safety related equipment. EA-FPP-95-054 Sheet __J_ Rev # __..o __ Reference 2.6, Page 27 / Reference 2.9

  • * (@consumers Power PALISADES NUCLEAR PLANT ANALYSIS CONTINUATION SHEET EA-FPP-95-054 J611WUllll&
    • . ,, .... Ir.I ..alillfSS

4.2 Description

of the Fire Barrier The West wall of the Turbine Lube Oil Room is corrugated sheet metal directly connected to building support steel. The remaining walls are concrete block walls. The ceiling is approximately 8" thick reinforced concrete, based on field measurement, and the floor is reinforced concrete resting on the grade elevation. The two doors in the south wall are three-hour rated doors. There are two openings in the ceiling for equipment access. These openings are protected by concrete plugs the same thickness as the ceiling with metal framing. The room is curbed to contain potential oil spills or a single tank rupture within the room. The Turbine Lube Oil Room is a free standing room within the main Turbine Building. Figure #1 shows a plan view of the area. This room does not provide structural support for the Turbine Building. However, the lower portion of two columns supporting the Turbine Building are located within the Turbine Lube Oil Room walls near the west end. Also, the concrete slab ceiling of the room is supported by structural steel beams. Neither the Turbine Building structural steel nor the ceiling beams are protected with fireproofing

  • materials.

The size of the columns and beams and connecting steel outside the room, provide a large heat sink, and in conjunction with the automatic sprinkler system ensure these components will not fail prior to the arrival of additional fire fighting, equipment to further suppress a fire in this area. The . Palisades Fire Brigade is specifically trained to fight liquid petroleum fires as part of their hands on training. ' Sheet Rev # --=o __ @consumers Power PALISADES NUCLEAR PLANT ANALYSIS CONTINUATION SHEET EA-FPP-95-054

  • .... ElllN& MKlllU#"S Ar8fiilU.S Figure #1 -Plan View 590' Elev. of Turbine Building Not To Scale Feedwater Purity Bldg. t
  • t Outside Area Open End Shops/Labs/Offices Openings Near Ceiling of Pipe Tunnel Turbine Building North Room Wall Figure #2 is an elevation view of the west wall of the Turbine Lube Oil Room. *An opening approximately nine inches wide running the width of the wall is located about 15 ft. high on the 21 ft. high wall, where the ceiling supports for the F eedwater Purity Tunnel were added. This provides a direct air flow path from the Turbine Lube Oil Room to just below the ceiling area of the Feedwater Purity Building.

In addition, various piping penetrations are made in the west wall that are not sealed around the annular spaces. The upper 5 to 6 ft. of the Turbine Lube Oil west wall is above the Feedwater Purity Tunnel ceiling and is exposed fo the outside plant area . Sheet --2__ Rev # _...._o __ e erence/Lonunen

  • Rooms * (@consumers Power flf1WU11111i MJDlllUll'S PALISADES NUCLEAR PLANT ANALYSIS CONTINUATION SHEET Figure #2 -Elev. View of Turbine Lube Oil West Wall Not To Scale *i c 8 outsidf Area . Ceiling of Pipe unnel \ Pipes Tunn I Area 590' Elev. Front View Facing East Side View Facing North The F eedwater Purity Tunnel connects the separate F eedwater Purity Building to the Turbine Building and is over 150 ft. long. A portion of this tunnel runs adjacent to the lower portion of the Turbine Lube Oil Room west wait' The tunnel is constructed of structural steel with a corrugated sheet metal wall and ceiling contajning fiberglass insulation between the inner and outer sheet metal walls. The structure has no listed fire resistance rating. The Turbine Building wall adjacent to the Feedwater Purity Tunnel is sheet metal supported on structural steel, similar to the Turbine Lube Oil west wall. There are numerous openings in the east wall of the Feedwater Purity Tunnel adjacent to the Turbine Building and the south end of the tunnel opens directly into the Turbine Building.

EA-FPP-95-054 Sheet _6_ Rev # --"O'---Reference

2. I
  • PALISADES NUCLEAR PLANT ANALYSIS CONTINUATION SHEET 4.3 Description of Combustible Loading a. Feedwater Purity Pipe Tunnel The pipe tunnel contains two condensate pipes, a fuel oil transfer pipe (welded fittings near Turbine Lube Oil Room), four lightly loaded cable trays, and other minor electrical and mechanical items. The electrical cables in the cable trays enter conduits approximately 20 ft. from the south end of the tunnel opening into the 590' elevation of the Turbine Building.

There are no significant combustible materials that traverse the openings from the Feedwater Purity Tunnel into the Turbine Building. The Feedwater Purity Tunnel contains no safety related equipment or circuits and has minimal combustible loading, so it is not classified as a separate fire area. b. Turbine Building (General Area@EL. 590'-0") North & West Side Combustible loading in the Turbine Building general area at EL. 590'-0" is approximately 15 minutes. This fire loading is spread over three elevations of the Turbine Building. . Equipment such as a heater drain cooler, feedwater heater, and air ejector are located near the east and south openings to the pipe tunnel. Any cable in this area is enclosed in conduit. Based on plant walkdowns, there are no significant combustibles within a radius of20 ft. from the yarious openings of the Feedwater Purity Tunnel into the 590' elevation of the Turbine Building. Waste oil tanks (T-130 and M-18) are located to the west of the Feedwater Purity Tunnel south opening. These tanks are positioned outside of the 20 ft. distance from the Feedwater Purity Tunnel, and are protected by a wet pipe sprinkler system with a spray density greater than 0. 3 0 gpm/ft 2. The next level above the 590'-0" elevation, in this area of the Turbine Building, is the 607'-6" elevation. This floor level is metal grating, which is not a confining space for smoke or heat. Therefore, any . smoke or heat generated from combustibles on the 590' elevation would rise, not affecting the pipe tunnel, its contents, or the Feedwater Purity Building. This area is also connected to the turbine operating floor above by open stairwells and various large openings with metal open grating provide an even larger vent area for any smoke and hot gases and minimize heat buildup on the 590' elevation. Transient combustibles are administratively controlled in all plant areas by plant procedure. Transients brought into this area of the Turbine EA-FPP-95-054 Sheet -2._ Rev # _o __ onunen Reference 2.11 Reference

2.4 Refererice

2 .1 Reference 2.14

  • @consumers Power flflWUllllfi MmAll'S ...-as PALISADES NUCLEAR PLANT ANALYSIS CONTINUATION SHEET ------Building for maintenance and operating activities, would be expected to be minimal based upon the type of equipment located in the area. c. Turbine Lube Oil Room The fire loading in the Turbine Lube Oil Room (Fire Area 22), results in an Equivalent Fire Severity of "greater than 9 hours" and therefore has a VERY IDGH Fire Loading Classification.

A significant fire in this area would be ventilation limited and could not achieve the temperatures normally projected for an open combustible* liquid pool fire. The only significant openings to allow combustion air into the room are through the west wall to the F eedwater Purity Tunnel. These openings are estimated to provide less than 32 ft:2 of vent area as shown in Attachment 'A', The ventilation openings into the room are protected by fire' dampers which, due to their location near the ceiling, close early in the event and are not considered in this analysis. The vent area calculation has added sefety factors to compensate for additional air provided by the ventilation openings early in the event, before the dampers close. In order to provide a quantitative assessment of the concern in this area, to supplement but not replace the qualitative evaluation, a fire model assessment was made. The fire model chosen was FPETOOL as it is a generally accepted industry standard that is available as public domain software. The lack of software quality assurance on the use of FPETOOL requires that any results provided will be for information only and these results are not intended to be used as an exact prediction of the temperatures with an actual fire in this area. A parametric evaluation, using FPETOOL, of the average upper level smoke temperature for the Turbine Lube Oil Room using the 32 ft 2 vent opening is presented in Attachment 'B'. The results show that the fire would be ventilation limited in 2 to 8 minutes (120 to 500 seconds), depending on the fire growth rate, with an upper level temperature of 800° F after 20 minutes. The maximum fire size is limited to 2.93 MW for the 32 ft 2 vent opening. The standard fire growth data for "moderate", "fast" and "ufast" that were supplied with FPETOOL were used. The "fast" and "ufast" fire data are for a 10 minute period while the "moderate" data extended to 20 minutes. EA-FPP-95-054 Sheet _a_ Rev# __,,o'---Reference

2.3 Reference

2.10

  • (@consumers Power flflWU11111i MJIUllU#'S PfllllillBS PAL I SADES NUCLEAR PLANT . ANALYSIS CONTINUATION SHEET The 800° F Jemperature is below the allowable structural steel
  • average temperature limits for steel columns and beams of 1000° F and 1100° F, respectively.

This fire model indicates adequate time is available for manual fire fighting activities to begin and provide additional cooling water on the affected structural steel. Additional runs of the model using either a 50% larger vent area or a 50% lower concrete heat sink still yielded results below the average allowable structural steel temperature for columns and beams after a 20 minute fire duration. No credit is taken for the full area automatic suppression system actuation in arriving at these temperature values. Realistically, the sprinklers would greatly limit the temperature rise during any postulated fire. If the sheet metal west wall were to fail due to warpage or due to support failure from metal expansion at the high temperatures the fire size could increase due to the increased ventilation area. A conservative maximum would be for the entire wall to open up. This opening of 21 feet by 24 feet (504 ft 2) was evaluated utilizing the "moderate" fire data as this data extends to a 20 minute period. The upper layer smoke and hot gas temperature based on a "moderate" fire *was calculated to be 664° Fat the end of20 minutes. The increased opening allows for more venting of hot gases and reduces the overall temperature compared to t!ie 32 ft 2 vent opening. Ventilation opening sizes between the 32 ft 2 and 504 ft 2 extremes may create higher* temperatures due to maximizing combustion air while minimizing smoke and hot gas venting, but the automatic suppression system will limit realistic fire temperatures below those predicted above. A separate FPETOOL model was run to predict the amount of time before the automatic sprinklers would actuate and begin cooling the area. The standard "fast" and "moderate" fire sizes provided with the FPETOOL program were utilized for the evaluation. The evaluation of the "fast" and "moderate" fires estimated sprinkler actuation times of

  • just under 3 minutes *and up to 5 minutes, respectively.

Additionally, a steady 3 MW and 30 MW fire size were evaluated with sprinkler.* actuation times of 29 seconds and 8 seconds, respectively. The details are presented in Attachment 'C'. Clearly, the larger the fire the faster the sprinklers would actuate. The less intense fires would delay sprinkler actuation, but this would be compensated for by the reduced peak temperatures that could damage the non-fire rated west wail. EA-FPP-95-054 Sheet _L Rev # _...o __ Reference 2.2, Page 6-76

  • * ( @)consumers Power l'fltftUll1lfi MJIUllliAln PALISADES NUCLEAR PLANT ANALYSIS CONTINUATION SHEET d. Feedwater Purity Building The Feedwater Purity Building is over 150 ft. from the Turbine Lube Oil Room west wall and the Turbine Building.

Some electrical cables in cable tray traverse the distance separating these buildings inside the Feedwater Purity Pipe Tunnel. The Boiler Room in the Feedwater Purity Building is protected by a sprinkler system. The Feedwater Purity Building and connecting tunnel do not contain safety related equipment. No combustible loading calculation was performed for this building due to the large separation from the Turbine Building or any safety related structures or components.

4.4 Description

of Suppression and Detection . a. Suppression The Turbine Lube Oil Room is equipped with full area automatic wet pipe suppression system. Sprinkler hydraulic analysis shows the spray density is greater than '0.55 gpm/3,000 sq. ft. which exceeds the 0.30 gpm/3,000 sq. ft. design specified for Extra Hazard (Group 1) protection. The extra water spray will minimize the peak room temperatures well below those predicted above in . Section 4.3.c. Manual suppression is provided by a hose station located less than 20 ft. away from the Turbine Building entrance to the pipe tunnel at the 590'-0" elevation. Various other hose stations are located throughout the Turbine Building on this and other elevations to provide backup fire fighting capability. Fire fighting foam equipment is located just outside the Turbine Lube Oil Room on the 590'-0" elevation. The Turbine Building has partial area automatic wet pipe suppression systems located in areas around the Turbine Lube Oil Room. These systems provide protection for areas with cable trays, lube oil, hydraulic oil reservoirs and office areas on both the 590'-0" elevation and the 607'-6" elevation. The Turbine Building areas to the north, south and east of the Turbine Lube Oil Room are protected by these sprinkler systems. Portions of these systems are located between the Turbine Lube Oil Room and the Component Cooling Water (CCW) Pump Room wall located east of the Turbine Lube Oil Room. The CCW Pump Room wall, which contains non-fire rated openings, provides separation of safety related equipment from the Turbine Building. EA-FPP-95-054 Sheet -1Q__ Rev# -"'D __ Reference

2.1 Reference

2.11 Reference 2 .13 Ref. 2.15, Fig. 1.24

  • @consumars Power . PllWUllN&

AUDIJIU#'S llmNilral

b. Detection PALISADES NUCLEAR PLANT ANALYSIS CONTINUATION.SHEET There is no automatic detection located in the general Turbine Building area near the access door to the pipe gallery (EL. 590'-0").

However, the automatic sprinkler systems in both the Turbine Lube Oil Room and the Turbine Building are equipped with flow alarms. These alarms will provide notification to the continuously manned plant Control Room. c. Fire Brigade/Equipment The plant fire brigade training program includes actual involvement with fighting flammable liquid fires during the live fire training. The 590'-0" elevation of the Turbine Building contains one of the fire brigade depot areas for equipment storage providing ready access to equipment for a fire in this area. Equipment such as self-contained vent fans capable of delivering 16,000 CFM are also located outside the Turbine Lube Oil Room. As mentioned above, the area also contains fire fighting foam equipment for a potential lube oil fire. 4.5 Overview of Fire Barrier Concerns The primary concern for this area is the spread of a fire from the Turbine Lube Oil Room into the Turbine Building that may ultimately affect either safety equipment in the Turbine Building or openings in walls separating the Turbine Building from safety related plant areas such as the CCW Pump Room. There is minimal concern for the spread of fire from the Turbine Building back into the Turbine Lube Oil Room due to the low combustible loading on the Turbine Building side. From the descriptions provided above there are several defense-in-depth barriers to prevent the spread of fire from the Turbine Lube Oil Room back into the Turbine Building. These can be summarized as follows:

  • The Turbine Lube Oil Room has full area automatic suppression estimated to actuate within 3 to 5 minutes and is hydraulically analyzed to exceed the design standards.

In addition, curbing is provided to contain potential oil spills within the room.

  • The non-fire rated west wall is exposed to the exterior for the upper 5 to 6 ft. and if wall failure did occur due to a fire, then this area would be expected to fail first venting the smoke and hot gases outside the Turbine Building area.
  • The size of the realistic fire in the Turbine Lube Oil Room is not projected to reach temperatures that may fail the west wall prior to sprinkler system actuation.

EA-FPP-95-054 Sheet -11..._ Rev # _o __

  • ---' * (@consumers Power PALISADES NUCLEAR PLANT ANALYSIS CONTINUATION SHEET EA-FPP-95-054 . l'flWUllNll AUUllUln Pm1&ras *--* Any smoke and hot gases vented into the Feedwater Purity Tunnel and Turbine Building would ultimately disperse over the entire Turbine Building area and minimize heat stress on nearby equipment.

The areas within 20 ft. of the Feedwater Purity Tunnel opening on the 590' elevation into the Turbine Building are virtually devoid of combustible material and contain no safety related equipment.

  • The plant fire brigade is available to respond to any plant fire and is specifically trained to fight oil fueled fires and has equipment available to extinguish such fires. The remaining concern is for direct fire to openings in walls separating safety related equipment from the Turbine Building.

The west wall of the CCW Pump Room contains various openings into the Turbine Building and these are described in a separate evaluation. However, the additional defense-in-depth features, from those described above, that protect these openings are a follows:

  • The areas within 20 ft. of these openings on the Turbine Building side are almost devoid of combustible materials.

Floor drains are located . throughout the Turbine Building to prevent the spread of liquid pool fires to the area adjacent to these openings on the 590' elevation.

  • Automatic wet pipe suppression systems are located in the Turbine Building such that a fire on the west side of the Turbine Building (near the Turbine Lube Oil area) would* have to cross these protected areas before exposure of the openings could occur. Additionally, the original Appendix R post-fire safe shutdown evaluation and the current revision to this analysis do not consider the Turbine Building and the Turbine Lube Oil Room as requiring separate fire areas, because no. safe shutdown components are located in the Turbine Lube Oil Room. Should a fire spread from the Turbine Lube Oil Room to the Turbine Building, it would result in the same consequences as a Turbine Building fire alone. The Turbine Building and the CCW Pump Room are evaluated as separate fire areas in the Appendix R analysis.

However, since the west wall of the Turbine Lube Oil Room is facing opposite and over 100' away from the unrated openings in the CCW Pump Room wall, no direct fire exposure hazard is considered credible . Sheet -1L Rev # __..o __ Ke*erencetcomrnenc

Reference 2.11

  • @consumers*

Power PALISADES NUCLEAR PLANT ANALYSIS CONTINUATION SHEET EA-FPP-95-054 Nf/IUUllli MIUllliAll'S flllGfiilf.U

5.0 CONCLUSION

The regulatory goal of the Turbine Lube Oil Room walls is to prevent a direct exposure fire hazard to either safety related equipment or openings and penetrations in fire barriers containing safety related equipment. The plant configuration described above provides adequate defense-in-depth such that the system as a whole prevents a direct fire exposure hazard to safety related equipment or openings in other fire area barriers required to meet NRC guidelines.

6.0 ATTACHMENTS

Attachment A -Estimation of Vent Area for Turbine Lube Oil Room West Wall and Surface Area of Interior Walls Attachment B FPETOOL Summary of Upper Level Temperatures for the Turbine Lube Oil Room Attachment C FPETOOL Summary of Sprinkler Actuation Time for a Fast and Moderate Fire in the Turbine Lube Oil Room Sheet --1L Rev# __,,o __

  • **
  • ATTACHMENT A Estimation of Vent Area for Turbine Lube Oil Room West Wall EA-FPP-95-054 Sheet 1 of 4 and Surface Area of Interior Walls
  • Estimation of Vent Area for Turbine Lube Oil West Not To Scale JI Between Rooms ca -.... Cl> Cl> .c en 6" Dia. @ 6" Dia. . 7" Dia.

.... Cl> 0 c: 0 u=== 22"W x 20"H 9'-5" 3'-B"W 11 '-1 II 590' Elev. Front View Facing East 22"H 9'-1 O" ' 7.5"W x 7"H or-10.5" Diagonal Side View Facing North m )> I "Tl "'tJ "'C "'tJ Q) I cc co CD 01 N1 oO -01

  • *
  • Vent Area Calculation EA-FPP-95-054 Page 3of4 The upper portion of the sheet metal wall is located 7. 5" horizontally away from the pipe tunnel ceiling I-beam and 7" below the lower flange of the I-beam. i::he air flow through this opening will be across the diagonal area calculated as follows: Diagonal=

..f((7.5") 2 + (7")2) = ..f(56.25 + 49) = ..f105.25 = 10.26 or conservatively 10.5" The diagonal opening along the majority of the west wall progresses for 20'-4" (24' minus 3'-8"). The area of this portion of the opening is calculated as A 1 below: A 1 = (10.5"/12) ft. X (20' + 4"/12) ft. = 0.875 ft. X 20.34 ft. = 17.80 ft 2 The semi-circular cutout for a pipe is conservatively assumed to be completely open without a pipe and the area is calculated as A 2 below: A 2 = 1/2 X ((7t(6/12) 2)/4) = 1/2 X (3.14 X 0.25)/4) = 0.098 ft 2 The rectangle cutout for a pipe is conservatively assumed to be completely open without a pipe* and the area is calculated as A 3 below:

  • A 3 = (22"/12) ft. x (20"112) ft. = I.83 ft. x t.67 ft. = 3.06 ft 2 The right most diagonal opening is located 7.5" horizontally away from the pipe tunnel I-beam and 22" below the lower flange of the I-beam. The air flow through this opening will be across the diagonal area calculated as follows:
  • 2nd Diagonal=

..f((7.5")2 + (22")2) = {(56.25 + 484) = ..f540.25 = 23.25" The rectangle cutout for the remaining 3'-8" of the west wall is calculated as A.. below: A..= (23.25"/12) ft. x (3' + 8"/12) ft. = 1.94 ft. x 3.67 ft. = 7.12 ft 2 The area of the three pipe penetrations, which are essentially filled with the pipes, are conservatively assumed to be completely open and the area is calculated as As below: As= ((1t(6"/12) 2)/4) + ((1t(7"/12) 2)/4) + ((7t(5"/12) 2)/4) = 0.196 + 0.267 + 0.136 = = 0.60 ft 2 The conservative total vent area is the sum of A 1 through As as follows: Total 17.80 + 0.098 + 3.06 + 7.12 + 0.60 = 28.68 ft 2 To further compensate for field measurement errors a 10% safety factor will be added to the Total Area to conservatively estimate the amount of air available to support combustion as follows: Total Area= 28.68 X 1.10 = 31.55; the area to be used in FPETOOL will be 32 ff EA-FPP-95-054 Page 4of4 -* ---Turbine Lube Oil Room

  • Surface Area oflnterior Walls The FPETOOL calculation of average upper level temperature includes an evaluation of the heat sink provided by the surrounding enclosure materials.

The Turbine Lube Oil Room is constructed of 8" concrete block on three sides, a reinforced concrete ceiling that is also 8" thick and a reinforced concrete floor that is greater than 8" thick. Conservatively; the 8" thickness will be used for all the enclosure concrete surfaces. The room is approximately 21 ft. high, but due to obstructions to air flow caused by the steel beams supporting the ceiling a conservative value of 20 ft. is used for the wall height. The lower number will provide both a higher temperature for a given fire size and a lower heat sink value than is realistically available. Based on the floor area of 24 ft. by 80 ft: the interior wall surface area is calculated as follows: Floor/Ceiling= 80' Long X 24' Wide X 2 surfaces= 3,840 ft.2 N & S Walls = 80' Long X 20' High X 2 surfaces= 3,200 ft.2 East Wall . = 20' High X 24' Long X 1 surface == 480 ft.2 Total Surface Area = 7,520 ft.2 Conservatively, the structural steel is not included in the heat sink values used for calculating the upper level smoke temperature in the room ..

  • ATTACHMENT B FPETOOL Summary of Upper Level Temperatures for the Turbine Lube Oil Room EA-FPP-95-054 Sheet 1 of 14
  • Turbine Lube Oil Room FPETOOL Upper Level Temperature

l

  • I I -----------

I -LL 600 I / I I l I / I *;' I E I / / Q) I l / 0 .200 ' 400 600 800 1000 1200 Time -Seconds -UFastFire

    • -*-*-*---**-*

Fast Fire ------Moderate Fire I (]) T /I) ; <l 1-v .--...r:...

  • U_:r'EJ.'JIP version 1.1 average upper level smoke temperature.

!i bine Lube Oil Room -Moderate Fire -32 sq. ft. Vent surfaces are: . S** aGe 1 -7520' Sq*. ft. of 8*' inch thick CONCRETE Fire room openings: Door is closed. Window is open to a height of 1.333 ft. and a width of 03-22-1996 24 ft. Time Rate of heat release Upper level smoke (sec) (BTU/sec) (kW) (degrees F) 10 1 1 102 20 4 5 105 30 10 11 109 40 18 19 114 50 28 29 119 *60 40 42 125 70 54 57 132 80 71 75 139 90 90 95 146 100 111 117 154 110 134 142 162 120 160 168 171 130 188 198 180 140 218 229 189 150 250 263 199 .160 284 300 I 209 ' 1-70 321 338 219 180 360 379 230 190 401 422 241 200 444 468 252 210 490 516 264 220 537 566 276 230 587 619 288 240 639 674 300 250 694 731 313. 260 750 791 326 270 809 853 339 280 870 917 352 290 934 984 366 300 999 1,053 380 310 1,067 1,124 394 320 1,137 1, 198 . ' 408 330 1,209 1,274 423 340 1,283 1,353 438 350 1,360 1,433 453 360 1,439 1,516 468 370 1,520 1;602 483 380 1,603 1,689 499 390 1,688 1,780 515 400 1,776 1, 872. 531 .410 1,866 1,967 547 1,958 2,064 564 430* 2,052 2,163 580 440 2,149 2,265 597 450 2,248 2,369. 614 '460 2,349 2,476 631 temperature (degrees C) 39 40 43 45 48 52 55 59 63 68 72 77 82 87 93 98 104 110 116 122 129 135 142 149 . 156 163 171 178' 186 193 201 209 217 225 234 242 251 259 268 277 286 295 305 314 323 333 470 2,452 2,585 649 480 2,558 2,696 667 490 2,665 2,809 684 Y df \ Lj 343 353 362 372 500 2,775 .2,925 702 'Tim.burning rate and resulting upper level temperature is limited capacity of the room openings.

  • From this point on the amount of energy that can be released within the room is limited to 2778.595 BTU/sec. Room temperature may continue to rise. 510 2,779 2,929 705 520 2,779 2,929 707 530 2,779 2,929 709 540 2,779 2,929 711 550 2,929 712 560 2,779 2,929 714 570 2,779 2,929 716 580 2,779 2,929 718 590 2,779 2,929 720 600 2,779 2,929 721 610 2,779 2,929 723 620 2,779 2,929 725 630 2,779 2,929 726 640 2,779 2,929 728 650 2,779 2,929 730 660 2,779 2,929 731 670 2,779 2,929 733 680 2,779 2,929 734 690 2,779 2,929 736 ) 700 2,779 2,929 738 710 2,779 2,929 739 *. 720 2,779 2,929 741 I 730 2,779 2,929 742 740 2,929 743 750 2,779 . 2,929 745 760 2,779 2,929 746 770 2,779 2,929* 748 780 2,779 2,929 749 790 2,779 2,929 751 800 2,779 2,929 752 810 2,779 2,929 753 820 2,929 755 830 2,779 2,929 756 840 2,779 2,929 757 850 2,779 2,929 759 860 2,779 2,929 760 870 2,779 2,929 761 880 2,779 2,929 762 890 2,779 2,929 764 900 2,779 2,929 765 910 2,779 2,929 766 920 2,779 2,929 767 930 2,779 2,929 768 940 2,779 2,929 770 950 2,779 2,929 771 960 2,779 2,929 772 *970 2 t 779 2 I 929 773 980 2,779 2,929 774 990 2,779 2,929 775-1,000 2,779 2,929 777 1,010 2,779 2,929 778 1,020 2,779 2,929 779 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 389 '390 391 392 393 394 394 395 396 397 398 398 399 400 401 401 402 403 404 404 405 406 406 407 408 408 409 410 410 411 412 412 413 414 414 415

.5 l Lf 1,030 2,779 2,929 780 416 . 1, 040 2,779 2,929 781 416 1-, 050 2,779 2,929 782 417 1,060 2,779 2,929 783 417 2,779 2,929 784 418 2,779 2,929 785 419 1,090 2,779 2,929 _.786 419 1,100 2,779 2,929 787 420 1,110 2,779 2,929 788 420 1,120 2,779 2,929 789 421 1,130 2,779 2,929 791 421 1, 140' 2,779 2,929 792 422 1,150 2,779 2,929 793 423 1,160 2,779 2,929 794 423 1,170 2,779 2,929 795 *424 1,180 2,779 2,929 796 424 1,190 2,779 2,929 796 425 1,200 2,779 2,929 797 425 I *

  • version 1.1 o-t \<...{ average upper level smoke temperature.

Turbine Lube Oil Room -Fast Fire -32 sq. ft. Vent 03-22-1996 Sq. ft. of 8 inch thick CONCRETE Fire room openings: Door is closed. Window is open to a height of 1.333 ft. and a width of 24 ft. Time Rate of heat release Upper level smoke (sec) (BTU/sec) (kW) (degrees F) 10 4 5 104 20 18 19 . '112 30 40 42 122 40 71 75 134 50 111 116 148 60 159 168 163 70 21 7 228 179 80 283 298 197 90 358 377 216 100 442 466 235 110 535 564 256 12 0 ,6 3 7 6 71 2 7 8 130 747 788 301 140 867 913 324 150 995 1, 049 349 -.. 1160 1, 132 1, 193 374 19170 1 , 2 7 8 l , 3 4 7 4 0 0 180 1,432 1,510' 427 190 1,596 1,682 454 200 1,769 1,864 483 210 1, 950 2, 055 512 220 2,140 2,255 542 230 2,339 2,465 572 240 2,547 2,684 603 250 2,763 2,913 635 The purning rate and upper level temperature is limited temperature (degrees C) 40 45 50 57 64 73 82 92 102 113 125 137 149 162 176 190 204 219 235 250 267 283 300 317 335 by the ventilation capacity of the room openings. From this point on the amount of energy that.can be released within the room is limited to 2778.595 BTU/sec. Room temperature may continue to rise. 260 2,779 2,929 641 270 2,779 2,929 644 280 2,779 2,929 647 290 2,779 2,929 650 300 2,779 2,929 654 310 2,779 2,929 657 320 2,779 2,929 660 330 2,779 2,929 662 340 2,779 2,929 665 350 2,779 2,929 668 360 2,779 2,929 671 2,779 2,929 673 2,779 2,929 676 390 2,779 2,929 678 400 2,779 2,929 681 410 2,779 2,929 683 *420 2,779 2,929 686 338 340 342 344 345 .347 349 350 352 353 355 356 358 359 360 362 363 I .. S { o-t-l '-1 430 2,779 2,929 688 364 -* 440 2,779 2,929 690 366 450 2,779 2,929 692 367 460 2,779 2,929 694 368 '.470 2,779 2,929 697 369 -- 2,779 2,929 699 370 490 2,779 2,929 701 372 500 2,779 2,929 703 373 510 2,779 2,929 705 374 520 2,779 2,929 707 375 530 2,779 2,929 709 376 540 2,779 2,929 711 377 550 2,779 2,929 712 378 560 2,779 2,929 714 379 570 2,779 2,929 716 380 580 2,779 2,929 718 381 590 2,779 2,929 720 382 600 2,779 2,929 721 383. *

  • version 1. 1 average upper level smoke temperature.

S kei"t 8 \ '--f Turbine Lube Oil Room -UFast Fire -32 sq. ft. Vent 03-22-1996 RAS .a--csue-r-Nf.ao, 8. eslare75: 2-* O Sq. ft. of 8 inch thick CONCRETE Fire room openings: Door is closed. Window is open to a height of 1.333 ft. and a width of 24 ft. Time Rate of heat release Upper level smoke (sec) (BTU/sec) (kW) (degrees F) 10 18 19 111 20 71 75 131 30 160 169 156 4 0 2 8 4 3 0 0 18 7_ 50 "\) 444 469 221 60 640 675 259 70 871 918 300 80 1,138 1,199 345 90 1,440 1,518 392 100 1,778 1,874 442 110 2,151 2,268 495 120 2,560 2,699 550 The burning rate and resulting upper level temperature is limited by the ventilation capacity of the room openings. From this point temperature (degrees C) 44 55 69 86 105 126 149 174 200 228 257 288 on the amount of energy that can be released within the room is l_ated to 2778. 595 BTU/sec. Room temperature may continue to rise. 2 t 779 2 t 929 582 -140 2,779 2,929 588 150 2,779 2,929 . 593 160 2,779 2,929 599 170 2,779 2,929 604 180 2,779 2,929 608 190 2,779 2,929 613 200 2,779 2,929 617 210 2,779 2,929 622 220 2,779 2,929. 626 230 2,779 2,929 630. 240 2,779 2,929 633 250 2,779 2,929 637 260 2,779 2,929 641 270 2,779 2,929 644 280 2,779 2,929 647 290 2,779 2,929 650 300 2,779 2,929 654 310 2,779 2,929 320 2,779 2,929 660 330 2,779 2,929 662 340 2,779 2,929 665 350 2,779 2,929 668 360 2,779 2,929 671 a10 2,119 2,929 673 2,779 2,929 676 390 2,779 2,929 678 400 2,779 2,929 681 410 2,779 2,929 683 420 2,779 2,929 686 305 309 312 315 318 323 325 328 330 332 334 336 338 340 342 344 345 347 349 350 352 353 355 356 358 359 360 362 363 S keeT 9 c-t-(<-( 430 2,779 2,929 688 364 44'0 2,779 2,929 690 366 450 2,779 2,929 692 367 460 2,779 2,929 694 368 2,779 2,929 697 369 2,779 2,929 699 370 490 2,779 2,929 701 372 500 2,779 2,929 703 373 510 2,779 2,929 705. 374 520 2,779 2,929 707 375 530 2,779 2,929 709 376 540 2,779 2,929 711 377 550 2,779 2,929 712 378 560 2,779 2,929 714 379 570 2,779 2,929 716 380 580 2,779 2,929 718 381 590 2,779 2,929 720 . 382 600 2,779 2,929 721 383 , * *

  • UTEMP *version 1.1
  • S ( 0 o+ ( average upper level smoke temperature.

Turbine Lube Oil Room -Moderate Fire -50% of Concrete Heat Sink R. surfaces are: S ace No. 1 3760 Sq. ft. of 8 inch thick CONCRETE Fire room openings: ' Door is closed. Window is operi to a height of 1.333 ft. and a width of 24 ft. Time Rate of heat release Upper level smoke (sec) (BTU/sec) (kW) (degrees F) 30 10 11 111 60 40 42 132 90 90 95 158 120 160 168 189 150 250 263 225 180 360 379 264 210 490 516 307 240 639 674 352 . 270 809 853 ,401 300 999 1,053 453 330. 1,209 507 360 1,439 1,516 564 390 1,688 1,780 623 420 1,958 2,064 684 450 2,248 2,369 748 A480 2*, 558 *

  • 2, 696 814 rate and resulting upper level temperature is limited by **"'the ventilation capacity of* the room opei:iings.

From this point on the amount of energy that can be released within the room is 03-22-1996 temperature (degrees C) 44 55 70 87 107 129 153. 178 205 234 264 295 328 362 398 434 *limited to 2778.595 BTU/sec. Room temperature may continue to* rise. 510 2,779 2,929 862 540 2,779 2,929 869 570 2,779 2,929 600 2,779 2,929 883 630 2,779 2,929 889 .660 2,779 2,929 895 690 2,779 2,929 901 720 2,779 2,929 907 750 2,779 2,929 913 780 2,779 2,929 918 810 2,779 2,929 923 84-0 2,779 2,929 928 870 2,779 2,929 933 900 '2,779 2,929 938 930 2,779 2,929 942 960 2,779 2,929 947 990 2,779 2,929 951. 1,020 2,779 2,929 955 2,779 2,929 959 1,080 2,779 2,929 963 *10 2,779 2,929 967 40 2,779 2,929 971 1,170 2,779 2,929 975 1,200 2,779 2,929 979 461 465 469 473 476 480 '483 486 489 ' 492 495 498 500 503 506 508 511 513 515 517 520 *522 524. 526

t l l er-£-I<-! *urEMP version 1.1 average upper level smoke temperature. Turbine Lube Oil Room -Moderate Fire -1.5X Larger Vent Area 03-22-1996 _RAS. . *:a.*c 8 uerNfoa-c. eslare75: 2 O Sq. ft. of 8 inch thick CONCRETE Fire room openings: Door is closed. Window is open to a of 2 ft. and a width of 24 ft. Time Rate of heat release Upper level smoke (sec) (BTU/sec) (kW) (degrees F) 30* 10 11 107 60 40 42 120 90 90 95 138 120 160 168 158 150 250 263 181 180 360 379 206 210 490 516 234 240 639 674 264 270 809 853 295 300 999 1,053 329 330 1,209 1,274 364 360 1,439 1,516 400 390 1,688 1,780 439 420 1,958 2,064 479 450 2,248 2,369 520 / *. 480 2,558 2,696 562 . ,, 510 2,887 3,043 607 540 3,237 3,412 652 570 3,607 3,801 698 600 3,996 4,212 746 630 4,406 4,644 795 660 4,835 5,097 846 The burning rate and resulting upper level temperature is limited by the ventilation capacity of the room openings .. From this point temperature (degrees C) 42 49 59 70 83 97 112 129 146 165 184 205 226 248 271 295 319 344 370 397 424 452 on the amount of energy that can be released within the room is limited to 5106.521 BTU/sec. Room temperature may continue to rise. 690 5,107 5,382 879 720 5,107 5,382 885 750 5,107 5,382 890 780 5,107 5,382 895 810 5,107 5,382 900 840 5,107 5,382 905 870 5,107 5,382 910 900 5,107 5,382 914 930 5,107 5,382 919 960 5,107 5,382 923 990 5,107 5,382 927 1,020 5,107 5,382 931 1,050 5,107 5,382 936 1,080 5,107 5,382 939 *10 5,107 5,382 943 40 5,107 5,382 947 1,170 5,107 5,382 951 1,200 5,107 5,382 954 471 474 477 480 482 485 488 490 493 495 497 500 502 504 506 508 510 512

  • urEMP version 1.1 average upper level smoke temperature.

Turbine Lube Oil Room -Moderate Fire -504 sq. ft. Vent 03-22-1996 surfaces are: No. 1 7520 Sq. ft. of 8 inch thick CONCRETE Fire room openings: Door is closed. Window is open*to a height of 21 ft. and a width of 24 ft. Time Rate of heat release Upper level smoke (sec) (BTU/sec) (kW) (degrees F) 10 1 1 100 20 4 5 101 30 10 11 102 40 18 19 103 50 28 29 105 60 40 42 106 70 54 57 108 80 71 75 110 90 90 95 112 100 111 117 114 110 134 142 116 120 160 168 118 130 188 198 120 140 218 229 122 150 250 263 125 284 300 127 321 338 130 180 360 379 133 190 401 422 136 200 444 468 138 210 490 516 141 220 537 566 144 230 587 619 147 240 639 674 150 250 694 731 154 260 750 791 157 270 809 853 160 280 870 917 164 290 934 984 167 300 999 1,053 171 310 1,067 1,124 174 320 1,137 1,198 178 330 1,209 1,274 181 340 1,283 1,353 185 350 1,360 1,433 189 360 1,439 1,516 193 370 1,520 1,602 197 380 1,603 1,689 201 390 1,688 1,780 205 400 1,776 1,872 209 .10 1,866 1,967 213 20 1,958 2,064 217 430 2,052 2,163 221 440 2,149 2,265 225 450 2,248 2,369 230 '460 2,349 2,476 234 temperature (degrees C) 38 38 39 40 40 41 42 43 44 45 46 48 49 50 52 53 54 56 58 59 61 62 64 66 68 69 71 73 75 77 79 81 83 85 87 89 91 94 96 98 100 103 105 107 110 112 s 13 c-f l t.{ 470 2,452 2,585 238 115 480 2,558 2,696 243 117 490 2,665 2,809 247 120 .. 500 2,775 2,925 252 122 .510 2,887 3,043 256 125 . 520 3,002 3,164 261 127 530 3,118 3,287 266 130 540 3,237 3,412 270 132 550 3,358 3,539 275 135 560, 3 ,481 3,669 280 138 570 3,607 3,801 285 140 580 3,734 3,936 290 143 590 3,864 4,073 295 146 600 3,996 4,212 299 149 610 4,131 4,354 304 151 620 4,267 4,497 310 154 630 4,406 4,644 315 157 640 4,547 4,792 320 160 *650 4,690 4,943 325 163 660 4,835. 5,097 330 166 670 4,983 5,252 335 169 680 5,133 5,410 341 171 690 5,28'5 5,570 346 174 700 5,439 5,733 351 177 7cl0 5,596 5,898 357 180 720 5,755 6,065 362 183 730 5,915 .6 I 235 368 186 740 6,079 6,407 373 190 750 6,244 6,581 379 193 .760 6,412 6-,758 384 196 I 770 6,582 6,937 390 199 780 6,754 7,118 396 202 790 6,928 7,302 401 205 800 7,104 7,488 407 208 810 7,283 7,676 413 212 820 7,464 7,867 419 215 830 7,647 8,060 425 218 840 7,833 8,256 430 221 850 8,020 8,453 436 225 860 8,210 8,653 442 228 870 8,402 8,856 4_48 231 880 8,596 9,060 454 235 890 8,793 9,268 460 238 900 8,991 9,477 466 241 910 9,192 9;689 473 245 920 9,396 9,903 479 248 930 9,601 10,119 485 252 940 9,808 10,338 491 255 950 10,018 10,559 497 259 960 1,0,230 10,783 504 262 970 10,445 11,009 510 266 980 10,661 11,237 516 269 990 10,880 11,467 523 273 1,000 11,101 11,700 529 276 .010 11,324 11,935 536 280 020 11,549 12,173 542 283 1,030 il,777 12,413 549 287 1,040 12,006 12,655 555 291 1,050 12,238 12,899 562 294 l,'060 12,473 13,146 568 298

\ l.{ l ti 1,070 12,709 13,395 *575 302

  • 1_, oErn 12,948 13,647 582 305 1,090 13,189 13,901 588 309 .100 13,432 14,157 595 313 110 13,677 14,416 602 317 ,120 13,925 14,676 609 320 1,130 14,174 14,940 616 324 1,140 14,426 15,205 622 328 1,150 14,681 15,473 629 332 ' 1,160 14,937 15,744 636 336 1,170 15,196 16,016 643 340 l', 180 15,456 16,291 650 343 1,190 15,720 16,568 657 347 1,200 15,985 16,848 664 351 **
  • ATTACHMENT C FPETOOL Summary of Sprinkler Actuation Time
  • EA-FPP-95-054 Sheet 1 of 6 for a Standard Fast and Moderate Fire .. or a Steady 3 MW and 3Q MW Fire *in the Turbine Lube Oil Room

-;. .. --*

  • Sprinkler Actuation Time EA-FPP-95-054 Sheet 2 of6 FPETOOL was used to determine the response time for sprinkler actuation in the Turbine 'Lube Oil Room. Values for spririkler parameters and fire size were determined and plugged into the FPETOOL module for heat detector/sprinkler actuation times. First, sprinkler parameters were defined for the room. The maximum ceiling height of 21 feet was chosen even though the actual location is approximately 20 feet from the floor as this will delay sprinkler response and give a conservative value. The sprinkler spacing in the Turbine Lube Oil Room was evaluated based on a plant walkdown and the maximum distance between sprinkler heads was determined to be 11 '-6". Based on this separation a fire could not be located radially more than 6' (conservatively) from any sprinkler head. The room temperature at the ceiling was set at 90° F, even though it is routinely higher than this value. The lower temperature was chosen to provide "a conservative value. The sprinkler heads are rated at 165° F and according to the "Automatic Sprinkler Systems Handbook", Sixth Edition, page 28, the Response Time Index (RTI) for standard response sprinklers is between 150 ft 112 s 112 to 200 ft 112 s 112. The worst case RTI *value of 200 ft 112 s 112 was chosen to bound the installed sprinkler parameters as the higher the RTI value the slower the response of the sprinkler actuation.

r Second, the fire size was specified to get a parametric look at the possible conditions in the Turbine Lube Oil Room before sprinkler actuation. The standard "Fast" and "Moderate" fire sizes were run as they are representative of realistic fires used in general fire modeling. Then a steady state 3 MW and 30 Mw fire were run to determine response from a combustible liquid pooi fire that tends to reach and maintain a given heat rate in a short period of time. The 3 MW fire size represents the ventilation limited fire size predicted by an earlier FPETOOL calculation. The 30 MW fire size was chosen to see what effect a considerably larger fire might have on the suppression system actuation time. The results are shown in the attached FPETOOL printouts and are summarized as follows: Fire Size Fast Fire Moderate Fire 3 MWFire 30 MWFire Sprinkler Response Time (Seconds) 174 (<3 Minutes) 298 / Minutes) 29 8 Twl.Q -'FAST FIRE 03-23-1996 Fire to .ing 21 Detec;::tor axial dist. ft 6 Room temp. F 90 Device rating F 165 Minimum heat release rate necessary to activate the detector at the location described is 605 BTU/s Time(Sec) RHR (BTU/s) Jet ( F) 3 ot b RT! (english) 200 Head/det (F) Time(Sec) RHR (BTU/s) Jet (F) Head/det. (F) 0 0 90 90 10 4 92 90 20 18 97 90 30 40 102 91 40 71 107 92 50 111 113 94 60 159 120 97 70 217 127 100 80 283 134 103 90 358 142 108 100 442 150 113 110 535 158 118 120 637 167 124 130 747 175 131 140 867 184 138 150 995 193 145 1132 203 153 1278 212 161 Detector activation at 174.2 seconds

  • TbO -'MODERATE FIRE 03-23-1996 Fire to Detector Room Device if ing axial dist. temp. rating ft F F 21 6 90 165 Minimum heat release rate necessary to activate the detector at the location described is 605 BTU/s Time(Sec)

RHR (BTU/s) . Jet (F) S h.eeT RTI (english) 200 Head/det Time(Sec) RHR (BTU/s) Jet ( F) Head/det. (F) 0 0 90 90 10 1 91 90 20 4 93 90 30 10 95 90 40 18 97 91 50 28 99 91 60 40 102 92 70 54 105 93 80 71 108 94 90 90 111 96 100 111 114 98 110 134 117 100. 120 160 121 102 130 188 124 104 140 218 128 106 150 250 131 109 284 135 112 321 139 115 360 143 118 190 401 147 122 200 444 151 125 210 490 155 129 220 537 159 132 230 587 163 136 240 639 167 140 250 694 172 144 260 750 176 148 270 . 809 181 153 280 870 185 157 290 934 190 161 Detector activation at 297.9 seconds * <-{ cf ( F) . TLO ** -.._'_3 .... --_ MW FIRE 03-23-1996 S 5 <<--f-*. to Detector Room Device RTI *lng axial dist. temp. rating ft F F (english) 21 6 90 165 200 Minimum heat release rate necessary to activate the detector at the location described is 605 BTU/s Time(Sec) RHR (BTU/s) Jet ( F) Head/det (F) Time(Sec) RHR (BTU/s) Jet (F) Head/det. (F) 0 0 90 90 1 0 90 90 2 316 90 90 3 633 139 90 4 949 167 91 5 1265 191 93 6 1581 213 94 7 1898 232 97 8 2214 251 99 9 2530 268 102 10 2846 285 105 11 2846 300 109 12 2846 300 112 13 2846 300 116 14 2846 300 119 15 2846 300 123 2846 300 126 2846 300 129 18 2846. 300 133 19 2846 300 136 20 . 2846 300 139 21 2846 300 142 22 2846 300 . 145 23 2846 300 148 .24 2846 300 151 25 2846 300 154 26 2846. 300 156 27 2846 300 159 28 2846 300 162 29 2846 300 164 Detector activation at 29.2 seconds

  • TI:.o_-

MW FIRE 03-23-1996 Fire-to Detector Room Device _c41ing axial dist. temp. rating ft F F 21 6 90 165 Minimum heat release rate necessary to activate the detector at the location described is 605 BTU/s Time(Sec) RHR (BTU/s) Jet ( F) RT! (english) 200 Head/det Time(Sec) RHR(BTU/s) Jet (F) Head/det. ( F) 0 0 90 90 1 2846 90 90 2 5693 300 92 3 8539 424 98 4 11385 528 106 5 14231 620 117 6 17078 705 131 7 19924 785 146 .8 22770 860 164 Detector activation at 8.1 seconds :.----\ .. ( r

  • b ( F)
  • EA-FPP-95-054 Pages 38 through 44 intentionally omitted *

,* * * ' ENCLOSURE 3 CONSUMERS POWER COMPANY PALISADES PLANT DOCKET 50-255 Analysis of the Effects of a Fire on the West Wall of the Component Cooling Water Room (Fire Area 16)}}

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