Kings County Jail Expansion Phase 3 Rational Analysis of Smoke Control System

Transcription

1 Kings County Jail Expansion Phase 3 Rational Analysis of Smoke Control System

2 Kings County Jail Phase 3 Page 2 RATIONAL ANALYSIS OF SMOKE CONTROL SYSTEM PER 2013 CBC General Description: The project consists of a major addition to the existing Kings County Jail facility. The addition includes 1 new medical housing wing, new kitchen facility, new classrooms, and a non-detention warehouse facility. The new additions are all single story. The existing Jail is of Type 1 construction with unlimited area SF. The new addition will add 26,367 SF to the existing building. The new additions will be located on the north-east side of the existing facility. The new additions will be of the same construction type and fully fire sprinkled except for the warehouse facility. The warehouse facilities will be a pre-manufactured metal building. The new classroom additions and medical housing areas with lay-in ceilings and/or low structure height, will be equipped with an active Smoke Control System, SCS, based on the 2013 CBC Pressurization Method. The kitchen smoke zone areas with lay-in ceilings and/or low structure height will utilize a Purge method. All areas will be designed in accordance with 2013 CBC 909 and shall have complete automatic control via the smoke evacuation panels and/or the fire alarm panels. Design Considerations: The design intent is for the Smoke Control System to contain the smoke within a given smoke zone and provide a tenable environment for the interval of time required to safely evacuate or relocate all of the occupants within a given Smoke Zone. Per the evacuation plan provided by the County(see Appendix D), the time to safely evacuate the occupants from each smoke zone is less than ten minutes. The new addition will be divided into 3 separate smoke control zones (refer to drawing M1.00 for zone boundaries). Each zone will have its own smoke control system and operation (refer to drawing M1.01 for operation matrix and system schematics, operation matrix also included in Appendix C). Zones 1, 2 and 3 are separated from the existing jail facility by the secured circulation corridor and will be connected to the existing facility with new secured circulation corridors.

3 Kings County Jail Phase 3 Page 3 Pressurization Method Areas The classroom areas (smoke zone 1) and medical housing area (smoke zone 3) will utilize the pressurization method for smoke control per 2013 CBC A large volume smoke-rated exhaust fan will exhaust all air from the classrooms pulling 100% outdoor make-up air through an intake relief vent on the roof. Classrooms will each be exhausted at a negative pressure relative to the adjacent zone without exceeding the maximum door-opening force of 30 lbs per CBC The supply air and return air ductwork normally serving these spaces will be isolated from other zones by closing combination fire/smoke dampers. For the medical housing area, large volume smoke-rated exhaust fans will exhaust all air from the open, high ceiling corridor maintaining a negative pressure while the air handler provides 100% outdoor make-up air to the cells to positively pressurize the cells. Ceiling supply to the corridor area will be shut off by smoke dampers to prevent mixing of the corridor smoke layer. The Purge Method Areas The kitchen areas (smoke zone 2) with all low ceiling areas will utilize the purge method of smoke evacuation due to the low ceiling heights and difficulty maintaining a tenable space beyond 6-feet tall. The air handler serving these areas will operate in the 100% outside air mode with the supply fans running to provide make-up air for the smoke exhaust fans. The smoke exhaust fans will energize upon alarm to exhaust the space and maintain a tenable 6-foot zone. Design Fire (Heat Release Rate, HRR) The design fire (or design HRR) for each zone area will vary due to the function of the space and the anticipated fuel available to produce a fire. The HRR is estimated to be between 237 Btu/s and 265 Btu/s (refer to NFPA 92B-2012 Smoke Exhaust Calculations in Appendix B). The calculations are based on a steady state fire with fuel products such as paper, clothing and a common fuel source such as cooking oil. The combustible materials assumed for the classroom space is limited to paper products and minor clothing. The combustible materials assumed for the kitchen area is food packaging trash. Fires centered around the cooking appliances will be controlled by the fire suppression system included with the kitchen hoods. For the medical housing area, the combustible materials are limited to the personal belongings an inmate is allowed to keep in their cell. This is the equivalent of paper goods and clothing. Furniture in all of the spaces is comprised of steel furniture and CA Bulletin 133 tested flame retardant plastic chairs. Mattresses in the medical housing meet or exceed the flammability requirements of CA Bulletin 129, CA Bulletin 603 and 16 CFR Part Below is a list of the Smoke Zones and the corresponding fire size (HRR) for each space:

4 Kings County Jail Phase 3 Page 4 1. Smoke Zone #1 (Classrooms Area G) = 265 Btu/s a. Wastepaper basket (6 lbs) = 14.2 Btu/s b. Cotton Clothing (2 lbs) = Btu/s c. Fuel Source (oil) = 109 Btu/s 2. Smoke Zone #2 (Kitchen Area G) = 800 Btu/s a. Plastic trash bags with cellulosic trash (2 bags) = 551 Btu/s b. Large barrel with milk cartons = 140 Btu/s c. Fuel Source (oil) = 109 Btu/s 3. Smoke Zone #3 (Medical Housing Area H) = 350 Btu s a. Wastepaper basket (2 lbs) = 14.2 Btu/s b. Cotton Clothing (4 lbs) = 227 Btu/s c. Fuel Source (oil) = 109 Btu/s The HRR was derived based on the following assumptions: Wastepaper basket (2 lbs) = 15 kw (14.2 Btu/s) Plastic trash bag with cellulosic trash = 110 to 330 btu/s per NFPA 92B Appendix B. Large barrel with milk cartons = 140 btu/s per NFPA 92B Appendix B. Cotton Clothing (4 lbs) = 240 kw (227 Btu/s) Fuel Source (1-tablespoon oil) = 115 kw (109 Btu/s) Ceiling Heights The ceiling heights vary in each of the individual smoke zones from 10-0 to 15-0 (refer to Appendix B for the NFPA 92B-2012 Smoke Exhaust Calculations for ceiling heights in each zone). Climatic Design Conditions: 29 DegF winter outdoor design temperature, 105 DegF summer outdoor design temperature, 15 MPH wind speed, and 68 DegF 78 DegF inside design temperature range.

5 Kings County Jail Phase 3 Page 5 Special Considerations: Stack Effect: Since the building is only 18 tall to the top of the parapet and the thermal difference between the indoor and outdoor conditions is slight, there is little potential for adverse inference due to stack effect. Temperature Effect: The local indoor and outdoor design conditions are not so extreme to expect the smoke plume to act differently than the calculations would predict. Wind Effect: The building addition butts up against the northeast side of the existing Jail. The prevailing wind is from the northwesterly direction. With a design wind speed of only 15 MPH the wind is expected to have little impact on system performance. Climate: Our local conditions are such that it doesn t snow. The prospect of snow or ice blockage of make-up air inlets or exhaust outlets is very remote.

6 Kings County Jail Phase 3 Page 6 Smoke Control System and HVAC System: The HVAC Systems are 4-pipe rooftop VAV systems. The supply air is ducted to VAV Boxes and then distributed to actual zones through supply outlets. The return air system is a ducted return with return outlets ducted back to the rooftop unit. The Medical holding cells have dedicated exhaust systems to maintain constant ventilation airflow through the cells. For the remaining areas, there are localized exhaust fans which provide general exhaust for restrooms and various spaces and also maintain space pressurization. Smoke Zone 1 (Classrooms) Pressurization Method Description The Smoke Control System (SCS) for Smoke Zone 1 designed with the Pressurization Method per 2013 CBC will utilize a dedicated SCS exhaust fan during the smoke control operation with the general supply and return ventilation ductwork isolated by closed combination fire/smoke dampers. Make-up air for each classroom will be provided via large intake relief vents on the roof with motorized fail-open dampers opened by the SCS, drawing in 100% outside make-up air. Air will be drawn through the intake vents by the action of the exhaust fans. The static pressure resistance of the make-up air path will determine the negative pressure maintained in the individual classrooms. The exhaust fans are sized to handle the static pressure through the make-up air dampers and are UL listed Power Ventilators for Smoke-Control Systems, rated and certified for the increased temperature requirements of smoke control at 500 F/4 hrs and 1000 F/ 15 mins. The make-up air is provided directly to each classroom and all areas will be exhausted simultaneously once the system is activated at a rate of 20 air changes per hour (3 minute air change rate). Negative pressure in the classrooms relative to the adjacent smoke zones and secure corridor will contain the smoke to the classroom in which the fire occurs. Differential pressures will not exceed the maximum door-opening force of 30 lbs per 2013 CBC Evacuation procedure provided by the County is to evacuate the inmates from the space in which the smoke is contained to either an adjacent empty classroom or to the secure corridor and then to the designated safe area. The planned classroom loading is 18 inmates and one instructor. The estimated time required to relocate the occupants once the smoke detection system is activated is less than 10 minutes. Refer to Appendix D for evacuation procedures and timing provided by the County. Refer to the Smoke Control Zoning List in Appendix A, the Smoke Control Operation Matrix in Appendix C and on drawing M1.01, the SCS Schematics on drawing M1.01, and the Exhaust Fan Schedules on M0.02 for the specific fans and relief hoods serving each space. The Service row in the Exhaust Fan Schedule indicates which fans are dedicated smoke control fans. Dedicated smoke control fans only operate during SCS operation.

7 Kings County Jail Phase 3 Page 7 Smoke Zone 2 (Kitchen) Purge Method Description The Smoke Control System for smoke zone 2 designed with the Purge Method will utilize the dedicated SCS exhaust fans during the smoke control operation with the general exhaust fans in that zone de-energized. The kitchen area will utilize a dedicated SCS exhaust fan in addition to enabling the kitchen hood exhaust fans for the removal of the smoke. The exhaust fans are sized to handle the static pressure through the make-up air dampers and are UL listed Power Ventilators for Smoke- Control Systems, rated and certified for the increased temperature requirements of smoke control at 500 F/4 hrs and 1000 F/ 15 mins. Exhaust and make-up air for each zone will be drawn through the overhead ductwork of each VAV air handler. The air handler shall operate in the 100% outside air mode for the make-up air to the smoke exhaust fans. The air handler is specified with UL 555S listed return and outside air dampers and are rated and certified for the increased temperature requirements of smoke control. The air handler shall be provided with a dedicated UL listed smoke control panel to control the fan and damper operation within the air handler during smoke evacuation mode. The VAV boxes are specified with fail open damper actuators. The SCS will interrupt power to all VAV boxes in this zone allowing the VAV dampers to actuate to full open. Since the make-up air is provided through a duct system that is common to all areas within this zone, all areas served by the air handler will be exhausted simultaneously once the system is activated. Additional make-up air will be provided via large intake relief vents on the roof with UL555S listed motorized fail-open dampers with end switches opened by the SCS, drawing in 100% outdoor make-up air. Make-up air will be drawn in through the relief vents by the negative space pressure created by the exhaust system. Evacuation procedure provided by the County is to evacuate the occupants from the kitchen area to the secure Culinary Kitchen corridor and then to the designated safe area. The estimated time required to relocate the occupants once the smoke detection system is activated is less than 10 minutes. Refer to Appendix D for evacuation procedures and timing provided by the County. Refer to the Smoke Control Zoning List in Appendix A, the Smoke Control Operation Matrix in Appendix C and on drawing M1.01, the SCS Schematics on drawing M1.01, and the Exhaust Fan Schedules on M0.02 for the specific fans and air handlers serving each space. The Service row in the Exhaust Fan Schedule indicates which fans are dedicated smoke control fans. Dedicated smoke control fans only operate during SCS operation.

8 Kings County Jail Phase 3 Page 8 Smoke Zone 3 (Medical Housing) Pressurization Method Description The Smoke Control System (SCS) for Smoke Zone 3 designed with the Pressurization Method per 2013 CBC will utilize two dedicated SCS exhaust fans during the smoke control operation with make-up air provided through the main air handler serving this zone in addition to relief vents. All of the cells will be positively pressurized and the corridor will be negatively exhausted. Upon detection of smoke the SCS will enable the smoke exhaust fans to maintain a negative pressure and exhaust all air from the open high ceiling corridor area at a rate of 20 air changes per hour (3 minute air change rate). The exhaust fans are sized to handle the static pressure through the make-up air dampers and are UL listed Power Ventilators for Smoke-Control Systems, rated and certified for the increased temperature requirements of smoke control at 500 F/4 hrs and 1000 F/ 15 mins. All other exhaust fans normally serving the cells and restroom areas will be deactivated. The air handler shall operate in 100% outside air mode providing positive pressure and make-up air to the cells. The air handler is specified with UL 555S listed return and outside air dampers and are rated and certified for the increased temperature requirements of smoke control. The air handler shall be provided with a dedicated UL listed smoke control panel to control the fan and damper operation within the air handler during smoke evacuation mode. The VAV boxes are specified with fail open damper actuators. The SCS will interrupt power to all VAV boxes in this zone allowing the VAV dampers to actuate to full open. Supply air from the air handler will be shut off to the corridor by combination fire/smoke dampers to prevent mixing of the smoke layer in the corridor. Make-up air to the corridor will be provided by two relief openings down low in the wall from the Rec Yard at the east end of the corridor and two roof mounted relief vents ducted down to low wall vents on the west end of the corridor. UL555S listed motorized fail-open dampers with end switches opened by the SCS will be provided at all relief openings. Differential pressures will not exceed the maximum door-opening force of 30 lbs per 2013 CBC Evacuation procedure provided by the County is to evacuate the inmates from the space where the smoke is originating, through the corridor and out to either the adjacent secure corridor or the Rec Yard. All other inmates will remain in their cells positively pressurized with 100% outside make-up air. The estimated time required to relocate the occupants once the smoke detection system is activated is less than 10 minutes. Refer to Appendix D for evacuation procedures and timing provided by the County. Refer to the Smoke Control Zoning List in Appendix A, the Smoke Control Operation Matrix in Appendix C and on drawing M1.01, the SCS Schematics on drawing M1.01, and the Exhaust Fan Schedules on M0.02 for the specific fans and relief hoods serving each space. The Service row in the Exhaust Fan Schedule indicates which fans are dedicated smoke control fans. Dedicated smoke control fans only operate during SCS operation.

9 Kings County Jail Phase 3 Page 9 Detection Devices The Smoke Control System and Fire Alarm System are interlocked to work in conjunction with each other. A smoke detection system is provided throughout the expanded facility with heat detectors used in the Kitchen area. Detectors are located at the ceiling level throughout the facility. Fire alarm panel and control is provided at the main control room via the guard control consoles. The SCS will be activated automatically via the smoke or heat detectors or can be manually operated by the security guards via the central control panels. Refer to Fire Alarm drawings SE2.01 thru SE2.04 and Smoke Control Panel drawing SE4.01. Pressurization Method Smoke Control System Sequence of Control System shall be activated automatically upon detection of smoke by duct detector in the VAV air handler or any of the local smoke or heat detectors. System shall also be activated manually via the control panel or fire alarm system. Smoke or Heat detector shall signal Fire Alarm System and Smoke Control System. By action of Smoke Control System and Energy Management System o The VAV air handlers shall disengage from heating or cooling and fans shall shut down. o The general exhaust fans shall deactivate. By action of the Fire Alarm System and Smoke Control System o The VAV air handler Return Air Damper s shall close by override signal from Smoke Control System. o Power to VAV boxes will be interrupted by signal from Smoke Control System. VAV boxes will have fail-open damper actuators to open 100% upon loss of power. o The VAV air handler OSA Damper s shall open to 100% outside air position by override signal from Smoke Control System. o Relief Hood intake air dampers shall be driven to 100% open position by signal from Smoke Control System. o Smoke Exhaust Fan control dampers shall be driven to 100% open position by signal from Smoke Control System. o Smoke Exhaust Fan serving smoke zone shall energize and run by signal from Smoke Control System. System shall run in this fashion until the Smoke Control System is manually turned off and then reset to the automatic position. Refer to Operation Matrix on drawing M1.01 for specific operation of the HVAC system and associated exhaust fans within each smoke zone.

10 Kings County Jail Phase 3 Page 10 Purge Method Smoke Control System Sequence of Control System shall be activated automatically upon detection of smoke by duct detector in the VAV air handler or any of the local smoke or heat detectors. System shall also be activated manually via the control panel or fire alarm system. Smoke or heat detector shall signal Fire Alarm System and Smoke Control System. By action of Smoke Control System and Energy Management System o The VAV air handlers shall disengage from heating or cooling, the economizer shall be driven to 100% open and supply fans shall continue to operate. o The VAV air handler return fans shall deactivate. o The general exhaust fans shall deactivate. By action of the Fire Alarm System and Smoke Control System o The VAV air handler Return Air Damper s shall close by override signal from Smoke Control System. o The VAV air handler OSA Damper s shall open to 100% outside air position by override signal from Smoke Control System. o Power to VAV boxes will be interrupted by signal from Smoke Control System. VAV boxes will have fail-open damper actuators to open 100% upon loss of power. o Relief Hood intake air dampers shall be driven to 100% open position by signal from Smoke Control System. o Smoke Exhaust Fan control dampers shall be driven to 100% open position by signal from Smoke Control System. o Smoke Exhaust Fans located in each smoke zone shall energize and run by signal from Smoke Control System. o Kitchen Hood exhaust fans shall energize and be commanded to run at 100% by override contact relay signal from Smoke Control System. System shall run in this fashion until the Smoke Control System is manually turned off and then reset to the automatic position. Refer to Operation Matrix on drawing M1.01 for specific operation of the HVAC system and associated exhaust fans within each smoke zone.

11 Kings County Jail Phase 3 Page 11 Calculations: See Appendix B for NFPA 92B-2012 Smoke Exhaust Calculations and differential pressure calculations.

12 CLASSROOMS/KITCHEN SECTOR G APPENDIX A Smoke Control Zoning List Kings County Jail Phase 3 Page 12 Smoke Zone 1 Classrooms AH-19 o EF-52 Exhaust from Classrooms and Staff Programming Multipurpose Classroom G101 Multipurpose Classroom G102 Multipurpose Classroom G113 Multipurpose Classroom G114 Shared Staff Programs G103 Smoke Zone 2 Kitchen AH-19 o EF-51 Exhaust from open area Warewash G111 Tray Assy G108 Circ G110 Staff Dining G105 o EF-43, EF-44 Exhaust from Kitchen Hoods Food Prep G116 MEDICAL SECTOR H Smoke Zone 3 Medical Housing and Corridor AH-18 o EF-41A, EF-41B Shared Office H101 Male Cells H102-H110 Female Cells H113-H118 Jan H119 Storage H120 Multipurpose/Dayroom H121-H123 M/F Cells H124-H125 Safety Cells H126-H127 Staff Station H128 Staff Toilet H129 Shower H130-H131 Circ H132 Vid Visit H133-H134 Interview H135-H136 Circ H137

13 APPENDIX B Kings County Jail Phase 3 Page 13 NFPA 92B-2012 Smoke Exhaust Calculations

14 NFPA 92B-2012 Smoke Exhaust Calculations Project Name: Kings County Jail Phase III Job # Date 9/4/2015 Smoke Zone No. 1 - Classrooms Area G Kings County Jail Phase III Smoke Control System - Exhaust Calculations Space Geometry & Properties Design Fire Properties Calculated Variables Variables Value Units Description A = 2456 ft2 Floor area Hc = 10 ft height of ceiling H = 0 ft height of balcony β = 2.8 exhaust location factor, dimensionless for ceilings and 2 for walls or near walls Pelev = 249 ft project elevation To = 75 degf Ambient Temp Fd = 30 lbf Total door opening force, Max allowed to set in motion per 2013 CBC dp = 0.24 in. W.C. maximum allowable pressure differential from adjacent spaces (ASHRAE A53.7 (Eq9)) Al = 1.2 ft2 Effective leakage area (assuming 1/8" gap around doors, tight construction) Cd = 0.65 Discharge Coefficient, dimensionless (ASHRAE F16.13) cp = 0.24 btu/lb-degf specific heat of plume gases (NFPA 92B Eq. (17)) Q = 265 btu/s steady state heat release rate (refer to narrative for description) ρatm = lb/ft3 density of smoke/air at 68degF (NFPA A.3.11) Qc = btu/s Convective portion of heat release rate ( assumed 70%) z = 6 ft height of smoke layer above fire zl = 4.3 ft Limiting elevation d = 4 ft depth of smoke layer below lowest point of exhaust inlet Zb = 6 ft height of smoke layer above balcony Tp = 312 degf Plume Temp Ts = 312 degf Smoke Temp ρ = lb/ft3 Density of smoke m (z>zl) = 3.26 lb/s mass flow rate of smoke production (smoke layer higher than flame height) m (z<zl) = 2.87 lb/s mass flow rate of smoke production (smoke layer equal or lower than flame height) Vl = 1531 ft3/min volumetric infiltration leakage rate at design pressure difference V = 3816 ft3/min volumetric rate of smoke production. Exhaust CFM required Vmax = ft3/min maximum flow rate at an exhaust inlet Page 1

15 Equations Used zl = 0.533*Qc^(2/5) NFPA 92B Eq. (7) 4.3 ft Smoke Zone No. 1 - Classrooms - Area G (Cont.) Kings County Jail Phase III Smoke Control System - Exhaust Calculations m (z>zl) = 0.022*Qc^(1/3)*z^(5/3) *Qc NFPA 92B Eq. (8) 3.26 lb/s m (z<zl) = *Qc^(3/5)*z NFPA 92B Eq. (9) 2.87 lb/s V = 60*m/ρ NFPA 92B 3.11 Eq. (22) 3816 ft3/min Vmax = 0.537*β*d^(5/2)*((To )*(Ts-To))^(1/2) NFPA 92B 3.9 Eq. (20) ft3/min Tp = To+Qc/(m*Cp) NFPA 92B Eq. (17) 312 degf ρ = ρatm*(528/( tp)) NFPA 92B A lb/ft3 Vl = 776*Cd*A*(2*dP/ρatm)^(1/2) ASHRAE F16.13 (Eq.36) 1531 ft3/min Page 2

16 NFPA 92B-2012 Smoke Exhaust Calculations Project Name: Kings County Jail Phase III Job # Date 9/4/2015 Smoke Zone No. 2 - Kitchen Area G Kings County Jail Phase III Smoke Control System - Exhaust Calculations Space Geometry & Properties Design Fire Properties Calculated Variables Variables Value Units Description A = 5370 ft2 Floor area Hc = 10 ft height of ceiling H = 0 ft height of balcony β = 2.8 exhaust location factor, dimensionless for ceilings and 2 for walls or near walls Pelev = 249 ft project elevation To = 75 degf Ambient Temp Fd = 30 lbf Total door opening force, Max allowed to set in motion per 2013 CBC dp = 0.24 in. W.C. maximum allowable pressure differential from adjacent spaces (ASHRAE A53.7 (Eq9)) Al = 1.2 ft2 Effective leakage area (assuming 1/8" gap around doors, tight construction) Cd = 0.65 Discharge Coefficient, dimensionless (ASHRAE F16.13) cp = 0.24 btu/lb-degf specific heat of plume gases (NFPA 92B Eq. (17)) Q = 800 btu/s steady state heat release rate (refer to narrative for description) ρatm = lb/ft3 density of smoke/air at 68degF (NFPA A.3.11) Qc = 560 btu/s Convective portion of heat release rate ( assumed 70%) z = 6 ft height of smoke layer above fire zl = 6.7 ft Limiting elevation d = 4 ft depth of smoke layer below lowest point of exhaust inlet Zb = 6 ft height of smoke layer above balcony Tp = 468 degf Plume Temp Ts = 468 degf Smoke Temp ρ = lb/ft3 Density of smoke m (z>zl) = 5.94 lb/s mass flow rate of smoke production (smoke layer higher than flame height) m (z<zl) = 5.56 lb/s mass flow rate of smoke production (smoke layer equal or lower than flame height) Vl = 1531 ft3/min volumetric infiltration leakage rate at design pressure difference V = 8351 ft3/min volumetric rate of smoke production. Exhaust CFM required Vmax = ft3/min maximum flow rate at an exhaust inlet Page 3

17 Equations Used zl = 0.533*Qc^(2/5) NFPA 92B Eq. (7) 6.7 ft Smoke Zone No. 2 - Kitchen Area G (Cont.) Kings County Jail Phase III Smoke Control System - Exhaust Calculations m (z>zl) = 0.022*Qc^(1/3)*z^(5/3) *Qc NFPA 92B Eq. (8) 5.94 lb/s m (z<zl) = *Qc^(3/5)*z NFPA 92B Eq. (9) 5.56 lb/s V = 60*m/ρ NFPA 92B 3.11 Eq. (22) 8351 ft3/min Vmax = 0.537*β*d^(5/2)*((To )*(Ts-To))^(1/2) NFPA 92B 3.9 Eq. (20) ft3/min Tp = To+Qc/(m*Cp) NFPA 92B Eq. (17) 468 degf ρ = ρatm*(528/( tp)) NFPA 92B A lb/ft3 Vl = 776*Cd*A*(2*dP/ρatm)^(1/2) ASHRAE F16.13 (Eq.36) 1531 ft3/min Page 4

18 NFPA 92B-2012 Smoke Exhaust Calculations Project Name: Kings County Jail Phase III Job # Date 9/4/2015 Smoke Zone No. 3 - Medical Area H Kings County Jail Phase III Smoke Control System - Exhaust Calculations Space Geometry & Properties Design Fire Properties Calculated Variables Variables Value Units Description A = 5962 ft2 Floor area Hc = 15 ft height of ceiling H = 0 ft height of balcony β = 2.8 exhaust location factor, dimensionless for ceilings and 2 for walls or near walls Pelev = 249 ft project elevation To = 75 degf Ambient Temp Fd = 30 lbf Total door opening force, Max allowed to set in motion per 2013 CBC dp = 0.3 in. W.C. maximum allowable pressure differential from adjacent spaces (ASHRAE A53.7 (Eq9)) Al = 1.2 ft2 Effective leakage area (assuming 1/8" gap around doors, tight construction) Cd = 0.65 Discharge Coefficient, dimensionless (ASHRAE F16.13) cp = 0.24 btu/lb-degf specific heat of plume gases (NFPA 92B Eq. (17)) Q = btu/s steady state heat release rate (refer to narrative for description) ρatm = lb/ft3 density of smoke/air at 68degF (NFPA A.3.11) Qc = btu/s Convective portion of heat release rate ( assumed 70%) z = 6 ft height of smoke layer above fire zl = 4.8 ft Limiting elevation d = 9 ft depth of smoke layer below lowest point of exhaust inlet Zb = 6 ft height of smoke layer above balcony Tp = 347 degf Plume Temp Ts = 347 degf Smoke Temp ρ = lb/ft3 Density of smoke m (z>zl) = 3.76 lb/s mass flow rate of smoke production (smoke layer higher than flame height) m (z<zl) = 3.39 lb/s mass flow rate of smoke production (smoke layer equal or lower than flame height) Vl = 1712 ft3/min volumetric infiltration leakage rate at design pressure difference V = 4591 ft3/min volumetric rate of smoke production. Exhaust CFM required Vmax = ft3/min maximum flow rate at an exhaust inlet Page 5

19 Equations Used zl = 0.533*Qc^(2/5) NFPA 92B Eq. (7) 4.8 ft Smoke Zone No. 3 - Medical Area H (Cont.) Kings County Jail Phase III Smoke Control System - Exhaust Calculations m (z>zl) = 0.022*Qc^(1/3)*z^(5/3) *Qc NFPA 92B Eq. (8) 3.76 lb/s m (z<zl) = *Qc^(3/5)*z NFPA 92B Eq. (9) 3.39 lb/s V = 60*m/ρ NFPA 92B 3.11 Eq. (22) 4591 ft3/min Vmax = 0.537*β*d^(5/2)*((To )*(Ts-To))^(1/2) NFPA 92B 3.9 Eq. (20) ft3/min Tp = To+Qc/(m*Cp) NFPA 92B Eq. (17) 347 degf ρ = ρatm*(528/( tp)) NFPA 92B A lb/ft3 Vl = 776*Cd*A*(2*dP/ρatm)^(1/2) ASHRAE F16.13 (Eq.36) 1712 ft3/min Page 6

20 2013-CBC Maximum Design Pressure Calculations Project Name: Kings County Jail Phase III Job # Date 9/29/2015 Smoke Zone No. 1 - Classrooms Area G Kings County Jail Phase III Smoke Control System - Exhaust Calculations Door Geometry & Properties Variables Value Units Description A = ft2 Door Area d = 0.25 ft Distance from door handle to latch edge of door F = 30 lbf Total door opening force, Max allowed to set in motion per 2013 CBC Fdc 12 lbf Force required to overcome closing device K = 5.2 Coefficient 5.2 W = 3.83 ft Door Width Calculated Pressure dp = 0.24 in. W.C. Maximum Allowable Design pressure difference Equations Used dp = 2(W-d)(F-Fdc)/KWA 2013-CBC Eq. (9-1) Design Pressure Relief Hood = 0.02 Damper = Relief Duct = Relief Grille = in. W.C. Total Negative Design Pressure for Space Page 7

21 APPENDIX C Kings County Jail Phase III Smoke Control System - Control Matrix Appendix C SMOKE CONTROL OPERATION MATRIX SMOKE ZONE EQUIP. MARK SMOKE DETECTION IN ZONE 1 (G) OPERATION MODE EQUIPMENT STATUS SMOKE DETECTION IN ZONE 2 (G) OPERATION MODE EQUIPMENT STATUS SMOKE DETECTION IN ZONE 3 (H) OPERATION MODE EQUIPMENT STATUS AH-19 AH OFF SMOKE ZONE 1 (G) EF-51 EF OFF EF-52 EF ON RH-1 DAMPER OPEN RH-2 DAMPER OPEN RH-3 DAMPER OPEN RH-4 DAMPER OPEN RH-5 DAMPER OPEN NORMAL OPERATION NORMAL OPERATION AH-19 AH EF-42 EF OFF SMOKE ZONE 2 (G) EF-43 EF-44 MUA-1 MUA-2 EF-45 EF-51 VAV RH-10 NORMAL OPERATION EF ON EF ON AH OFF AH OFF EF OFF EF ON VAV OFF DAMPER OPEN NORMAL OPERATION RH-11 DAMPER OPEN AH-18 EF-37 AH EF OFF SMOKE ZONE 3 (H) EF-38 EF-39 EF-40 LOUVER H LOUVER H VAV NORMAL OPERATION NORMAL OPERATION EF OFF EF-41A EF ON EF OFF EF OFF EF-41B EF ON RH-8 DAMPER OPEN RH-9 DAMPER OPEN DAMPER OPEN DAMPER OPEN VAV OFF

22 APPENDIX C Kings County Jail Phase III Smoke Control System - Control Matrix Appendix C COMMENT EF ON EF OFF DAMPER OPEN SMOKE CONTROL MATRIX LEGEND DESCRIPTION ACTIVE OR SMOKE GENERATION IN THIS ZONE. EXHAUST FAN IS ACTUATED "ON". DAMPER IS ACTUATED "OPEN". EXHAUST FAN IS DEACTIVATED. SMOKE CONTROL RELIEF DAMPER IS ACTUATED "OPEN". AIR HANDLER SUPPLY AND RETURN/EXHAUST FANS ACTUATED "OFF". RETURN AIR AH OFF DAMPER ACTUATED "CLOSED". OUTSIDE AIR DAMPER ACTUATED "OPEN". HEATING AND COOLING ACTUATED "OFF". BMS OPERATES AIR HANDLER SUPPLY AND RETURN/EXHAUST FANS; OUTSIDE AIR, RETURN AIR, AND EXHAUST AIR DAMPERS; HEATING AND COOLING COILS, VAV NORMAL OPERATION BOXES ACCORDING TO NORMAL SEQUENCE OF OPERATION. SMOKE RELIEF DAMPERS ACTUATED CLOSED. SMOKE EXHAUST FANS OFF. CONTROL DAMPERS AT SMOKE EXHAUST FANS ACTUATED CLOSED. AIR HANDLER SUPPLY ACTUATED "ON". RETURN/EXHAUST FAN ACTUATED "OFF". AH RETURN AIR DAMPER ACTUATED "CLOSED". OUTSIDE AIR DAMPER ACTUATED "OPEN". HEATING AND COOLING ACTUATED "OFF". VAV OFF POWER TO VAV BOX IS INTERUPTED BY RELAY. VAV BOX ACTUATOR TO FAIL OPEN UPON LOSS OF POWER. SMOKE CONTROL NOTES: 1. BUILDING OPERATION UNDER NORMAL POWER A. UNDER NON-ALARM CONDITION, AIR HANDLERS OPERATE IN NORMAL MODE FOR HEATING AND COOLING. B. UNDER ALARM CONDITION, AIR HANDLERS OPERATE AS INDICATED IN SMOKE CONTROL MATRIX LEGEND. 2. BUILDING OPERATION UNDER POWER LOSS OR EMERGENCY POWER CONDITION A. UNDER NON-ALARM CONDITION, AIR HANDLERS OPERATE SUPPLY AND RETURN/EXHAUST FANS ONLY. OUTSIDE AIR DAMPER IS CLOSED. RETURN AIR DAMPER IS OPEN. HEATING AND COOLING ARE DEACTIVATED. B. UNDER ALARM CONDITION, AIR HANDLERS OPERATE AS INDICATED IN SMOKE CONTROL MATRIX LEGEND.

23 Kings County Jail Phase 3 APPENDIX D OFFICE OF SHERIFF COUNTY OF KINGS MEMORANDUM The Kings County Jail SB1022 Project includes the Culinary Kitchen and Mental Health Suite. The program staffing guidelines and evacuations exits will include the following: Culinary Kitchen There are four classrooms within the culinary kitchen, two that are adjoined on the northwest end of the kitchen and two that are adjoined on the southwest end. The program will include no more than eighteen (18) inmates and one instructor per classroom. Each classroom has two entry/exit doors which are electronically controlled by central control and would be utilized during an evacuation procedure. Available Facility staff would respond to assist in the evacuation of all classrooms which would exit to the Culinary Kitchen Corridor to the designated safe area which would take less then ten minutes. Mental Health Suite There are three Mental Health Multipurpose rooms on the west end of the Mental Health Suite with one being ADA compliant. The program will include no more than three (3) inmates and one staff per session. Each multipurpose room has one door on the southeast wall which will be used to enter and exit the rooms to and from the Mental Health Suite corridor. These doors are all electronically controlled by central control or may be keyed open by staff. This unit is also comprised of (17) seventeen cells with (7) seven being double occupancy for a total housing capacity of 24 inmates. There will be (2) Detention Deputies assigned to this unit 24 hours a day, seven days a week. In the evacuation process for the Mental Health Unit, the multipurpose rooms would be electronically released, the cells would be manually opened by unit assigned staff who would evacuate inmates to a designated safe area which would take less then ten minutes.