STAIR CASE 05 3 Doors open,
PRESSURIZATION CALCULATIONS:
1/2
Method 1
NOTES
Q= K f *Al*( P)
ZONE 1 Q = Flow Rate (cfm) (cfm) 1/2
Q= K f *Al*( P)
Eqn. 4.8a - from ASHRAE ASHRAE Design Design
K f f = Coefficient, 2610 Al = Flow Area, ft DP
of Smoke Management Systems,
2
pg. 42
= Pressure Diff., 0.05, in H2O
Flow/Leakage Flow/Leakage area calculations: Structural Component
Number of item
Closed Doors Open Doors
Height
Length
Depth
Area
(ft)
(ft)
(ft)
t
48 3
3 3
7 7
Flow Area t
Total Leakage Area t
0.300 10.500
21
14.40 31.50
Flow area values taken from: ASHRAE Design of Smoke Management * half of the geometric area was used in calculating calculati ng the flow area for the open doors
Total Total Flow Area: (summed from Table 1) Coefficient: Pressure Difference: Volumetric Flow Rate:
Al Kf DP
= = = =
45.90 ft 2610 0.05 in H20 26787.87 cfm
Q
=
26787.87 cfm
=
45.90
SC- 05 SPF/25-2
IFC 9860
SPF/49-1 Total
7820 17680
STAIR CASE 06 , 3 Doors open
PRESSURIZATION CALCULATIONS:
1/2
Method 1
NOTES
Q= K f *Al*( P)
ZONE 1 Q = Flow Rate (cfm 1/2
Q= K f *Al*( P)
Eqn. 4.8a - from ASHRAE Design
K f = Coefficient, 2610 Al = Flow Area, ft DP
of Smoke Management Systems,
2
pg. 42
= Pressure Diff., 0.05, in H2O
Flow/Leakage area calculations: Structural Component
Closed Doors Open Doors
Number of item
50 3
Height
Length
Depth
Area
(ft)
(ft)
(ft)
t
3 3
7 7
21
Flow Area t
Total Leakage Area t
0.300 10.500
15.00 31.50
Flow area values taken from: ASHRAE Design of Smoke Management * half of the geometric area was used in calculating the flow area for the open doors
Total
=
46.50
STAIR CASE 06 , 3 Doors open
PRESSURIZATION CALCULATIONS:
1/2
Method 1
NOTES
Q= K f *Al*( P)
ZONE 1 Q = Flow Rate (cfm 1/2
Q= K f *Al*( P)
Eqn. 4.8a - from ASHRAE Design
K f = Coefficient, 2610 Al = Flow Area, ft DP
of Smoke Management Systems,
2
pg. 42
= Pressure Diff., 0.05, in H2O
Flow/Leakage area calculations: Structural Component
Number of item
Closed Doors Open Doors
Height
Length
Depth
Area
(ft)
(ft)
(ft)
t
50 3
3 3
7 7
Flow Area t
Total Leakage Area t
0.300 10.500
21
15.00 31.50
Flow area values taken from: ASHRAE Design of Smoke Management * half of the geometric area was used in calculating the flow area for the open doors
Total Total Flow Area: (summed from Table 1) Coefficient: Pressure Difference: Volumetric Flow Rate:
Al Kf DP
= = = =
46.50 ft 2610 0.05 in H20 27138.04 cfm
Q
=
27138.04 cfm
=
SC- 06 SPF/25-1 SPF/50-1 Total
46.50
IFC
9860 8160 18020
STAIR CASE 07, 3 Doors open
PRESSURIZATION CALCULATIONS:
1/2
Method 1
NOTES
Q= K f *Al*( P)
ZONE 1 Q = Flow Rate (cfm 1/2
Q= K f *Al*( P)
Eqn. 4.8a - from ASHRAE Design
K f = Coefficient, 2610 Al = Flow Area, ft DP
of Smoke Management Systems,
2
pg. 42
= Pressure Diff., 0.05, in H2O
Flow/Leakage area calculations: Structural Component
Closed Doors Open Doors
Number of item
5 3
Height
Length
Depth
Area
(ft)
(ft)
(ft)
t
3 3
7 7
21
Flow Area t
Total Leakage Area t
0.300 10.500
1.50 31.50
Flow area values taken from: ASHRAE Design of Smoke Management * half of the geometric area was used in calculating the flow area for the open doors
Total
=
33.00
STAIR CASE 07, 3 Doors open
PRESSURIZATION CALCULATIONS:
1/2
Method 1
NOTES
Q= K f *Al*( P)
ZONE 1 Q = Flow Rate (cfm 1/2
Q= K f *Al*( P)
Eqn. 4.8a - from ASHRAE Design
K f = Coefficient, 2610 Al = Flow Area, ft DP
of Smoke Management Systems,
2
pg. 42
= Pressure Diff., 0.05, in H2O
Flow/Leakage area calculations: Structural Component
Number of item
Closed Doors Open Doors
Height
Length
Depth
Area
(ft)
(ft)
(ft)
t
5 3
3 3
7 7
Flow Area t
Total Leakage Area t
0.300 10.500
21
1.50 31.50
Flow area values taken from: ASHRAE Design of Smoke Management * half of the geometric area was used in calculating the flow area for the open doors
Total Total Flow Area: (summed from Table 1) Coefficient: Pressure Difference: Volumetric Flow Rate:
Al Kf DP
= = = =
33.00 ft 2610 0.05 in H20 19259.25 cfm
Q
=
19259.25 cfm
=
33.00
SC- 07 SPF/14 -1
IFC 10840
Total
10840
STAIR CASE 05
PRESSURIZATION CALCULATIONS:
1/2
Method 1
NOTES
Q= K f *Al*( P)
ZONE 1 Q = Flow Rate (cfm) 1/2
Q= K f *Al*( P)
Eqn. 4.8a - from ASHRAE Design
K f = Coefficient, 2610 Al = Flow Area, ft DP
of Smoke Management Systems,
2
pg. 42
= Pressure Diff., 0.05, in H2O
Flow/Leakage area calculations: Structural Component
Closed Doors Open Doors
Number of item
48 0
Height
Length
Depth
Area
(ft)
(ft)
(ft)
t
3 3
7 7
Flow Area t
21
Total Leakage Area t
0.300 10.500
14.40 0.00
Flow area values taken from: ASHRAE Design of Smoke Management * half of the geometric area was used in calculating the flow area for the open doors
Total
=
14.40
STAIR CASE 05
PRESSURIZATION CALCULATIONS:
1/2
Method 1
NOTES
Q= K f *Al*( P)
ZONE 1 Q = Flow Rate (cfm) 1/2
Q= K f *Al*( P)
Eqn. 4.8a - from ASHRAE Design
K f = Coefficient, 2610 Al = Flow Area, ft DP
of Smoke Management Systems,
2
pg. 42
= Pressure Diff., 0.05, in H2O
Flow/Leakage area calculations: Structural Component
Number of item
Closed Doors Open Doors
Height
Length
Depth
Area
(ft)
(ft)
(ft)
t
48 0
3 3
7 7
Flow Area t
Total Leakage Area t
0.300 10.500
21
14.40 0.00
Flow area values taken from: ASHRAE Design of Smoke Management * half of the geometric area was used in calculating the flow area for the open doors
Total Total Flow Area: (summed from Table 1) Coefficient: Pressure Difference: Volumetric Flow Rate:
Al Kf DP
= = = =
14.40 ft 2610 0.2 in H20 16808.08 cfm
Q
=
16808.08 cfm
=
14.40
SC- 05 SPF/25-2
IFC 9860
SPF/49-1 Total
7820 17680
STAIR CASE 05
PRESSURIZATION CALCULATIONS:
1/2
Method 1
NOTES
Q= K f *Al*( P)
ZONE 1 Q = Flow Rate (cfm 1/2
Q= K f *Al*( P)
Eqn. 4.8a - from ASHRAE Design
K f = Coefficient, 2610 Al = Flow Area, ft DP
of Smoke Management Systems,
2
pg. 42
= Pressure Diff., 0.05, in H2O
Flow/Leakage area calculations: Structural Component
Closed Doors Open Doors
Number of item
50 0
Height
Length
Depth
Area
(ft)
(ft)
(ft)
t
3 3
7 7
21
Flow Area t
Total Leakage Area t
0.300 10.500
15.00 0.00
Flow area values taken from: ASHRAE Design of Smoke Management * half of the geometric area was used in calculating the flow area for the open doors
Total
=
15.00
STAIR CASE 05
PRESSURIZATION CALCULATIONS:
1/2
Method 1
NOTES
Q= K f *Al*( P)
ZONE 1 Q = Flow Rate (cfm 1/2
Q= K f *Al*( P)
Eqn. 4.8a - from ASHRAE Design
K f = Coefficient, 2610 Al = Flow Area, ft DP
of Smoke Management Systems,
2
pg. 42
= Pressure Diff., 0.05, in H2O
Flow/Leakage area calculations: Structural Component
Number of item
Closed Doors Open Doors
Height
Length
Depth
Area
(ft)
(ft)
(ft)
t
50 0
3 3
7 7
Flow Area t
Total Leakage Area t
0.300 10.500
21
Flow area values taken from:
15.00 0.00
ASHRAE Design of Smoke Management * half of the geometric area was used in calculating the flow area for the open doors
Total Total Flow Area: (summed from Table 1) Coefficient: Pressure Difference: Volumetric Flow Rate:
Al Kf DP
= = = =
15.00 ft 2610 0.2 in H20 17508.41 cfm
Q
=
17508.41 cfm
=
SC- 06 SPF/25-1 SPF/50-1 Total
15.00
IFC
9860 8160 18020
1 staircase 7
fan capacity installed at 14
air flow 27000 cfm
ALL DOOR CLOSED with bypass damper open Measured pressure at level 8 Measured pressure at level 6 Measured pressure at level 4 Measured pressure at level 2 Measured pressure at level 1
220pa 215pa 210pa 205pa 200pa
With one door open(level1) & with bypass damper closed Measured pressure at level 8 Measured pressure at level 5 Measured pressure at level 3 Measured pressure at level 2
38pa 38pa 35pa 33pa
With Three door open(level 1,3 &4) & with bypass damper closed Measured pressure at level 8 Measured pressure at level 7 Measured pressure at level 6 Measured pressure at level 5
15pa 15pa 14pa 13pa
CASE 1
case 2
case 3
esp 620 pa
Serving level 1 - level 8
1 staircase 7
fan capacity installed at 14
air flow 27000 cfm
ALL DOOR CLOSED with bypass damper open Measured pressure at level 8 Measured pressure at level 6 Measured pressure at level 4 Measured pressure at level 2 Measured pressure at level 1
220pa 215pa 210pa 205pa 200pa
With one door open(level1) & with bypass damper closed Measured pressure at level 8 Measured pressure at level 5 Measured pressure at level 3 Measured pressure at level 2
38pa 38pa 35pa 33pa
With Three door open(level 1,3 &4) & with bypass damper closed Measured pressure at level 8 Measured pressure at level 7 Measured pressure at level 6 Measured pressure at level 5 Measured pressure at level 2
15pa 15pa 14pa 13pa 13pa
esp 620 pa
Serving level 1 - level 8
esp 620 pa 550pa
Serving level 48 Basement 3
CASE 1
case 2
case 3
1 staircase 5
fan capacity installed at 49 fan capacity installed at 25
air flow 27000 cfm 11000c fm
ALL DOOR CLOSED with bypass damper open Measured pressure at level 48 Measured pressure at level 40 Measured pressure at level 30 Measured pressure at level 20 Measured pressure at level GF Measured pressure at level B3
125pa 122pa 120pa 118pa 108pa 106pa
With one door open(level 5) & with bypass damper closed Measured pressure at level 48 Measured pressure at level 30 Measured pressure at level 3 Measured pressure at level 1 Measured pressure at level B1 Measured pressure at level B3
95pa 89pa 38pa 30pa 22pa 22pa
CASE 1
case 2
case 3
With Three door open(level GF,3 &4) & with bypass damper closed Measured pressure at level 48 85pa Measured pressure at level 40 78pa Measured pressure at level 30 74pa Measured pressure at level 5 20pa Measured pressure at level 2 20.2pa Measured pressure at level 2 15pa Measured pressure at level B1 9.5pa Measured pressure at level B3 8pa
