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Project No. Date
Sheet No. Computed by
Subject Checked by Approved by
DESIGN CALCULATIONSHEET
of
Design calculation sheet Project no.: Date: Sheet no.: 25 25 Computed by:
Subject Checked by:
Approved by:
of
Design calculation sheetProject no: SN07010/2 Date: 7/3/07 Sheet no.: 1 1 Computed by: S.A.
Subject: Chilled Water Secondary Pumps Checked by:
Serving terminal Approved by:
1
3 Pumps acting; flow per pump= 91.7 l/s1453 gpm
2 Pump Head
A- Pipe Losses
Dia Length Eq.leng Flow Fr. losses Losses
in m ft ft GPM L/s ft/100ft ft
18 100 328.08 426.51 5261 332.00 0.82 3.50
18 1016 3331.148 3997.377 4670 294.7 0.7 27.98
18 278 911.4754 1184.918 4358 275 0.65 7.70
Sub-Total-1 39.18 ft
B- Accessories Losses
ItemDia Qty. Equ. L Flow Fr. losses Losses
in. ft. gpm ft/100ft ft
Pum
p Gate Valve 12 2 13 1453 0.82 0.21
Globe valve 12 1 320 1453 0.82 2.62
Check Valve 12 1 120 1453 0.82 0.98
AH
U
Gate Valve 5 2 6 284.00 0.00
2-way control valve 5 1 9.9 284.00 0.00
Balancing valve 5 1 140 284.00 0.00
Strainer 5 1 80 284.00 0.00
Coil 1 284.00
Sub-Total-2 3.82 ft
Sum 43.00 ft
Friction Losses 13.11 m
Static head m
sub total= 13.1 m
Total with 10% safety= 14.4 m
of
Design calculation sheetProject no: SN07010/2 Date: 3/24/07 Sheet no.: 1 1 Computed by: S.A.
Subject: Chilled Water Secondary Pumps Checked by:
Serving terminal Approved by:
1
3 Pumps acting; flow per pump= 106.2 l/s1683 gpm 3 acting + 1 St. By
2 Pump Head
A- Pipe Losses
Dia Length Eq.leng Flow Fr. losses Losses
in m ft ft GPM L/s ft/100ft ft
20 100 328.08 426.51 5261 332.00 0.55 2.35
20 946 3101.639 3721.9672 5304 334.7 0.51 18.98
18 494 1619.672 2105.5738 5049 318.6 0.8 16.84
12 4 13 17 1683 106 0.63 0.11
Sub-Total-1 38.17 ft
B- Accessories Losses
ItemDia Qty. Equ. L Flow Fr. losses Losses
in. ft. gpm ft/100ft ft
Pum
p
Gate Valve 12 2 13 1683 0.63 0.16
Strainer 12 1 250 1683 0.63 1.58
Globe valve 12 1 320 1683 0.63 2.02
Check Valve 12 1 120 1683 0.63 0.76
AH
U
Gate Valve 5 2 6 284.00 2.90 0.35
2-way control valve 5 1 9.9 284.00 2.90 0.29
Balancing valve 5 1 140 284.00 2.90 4.06
Strainer 5 1 80 284.00 2.90 2.32
Coil 1 284.00 9.90
Sub-Total-2 21.43 ft
Sum 59.60 ft
Friction Losses 18.17 m
Static head m
sub total= 18.2 m
Total with 10% safety= 20.0 m
Say 22.00
of
Design calculation sheetProject no: SN07010/2 Date: 12/3/07 Sheet no.: 1 1 Computed by: S.A.
Subject: Chilled Water Secondary Pumps in CUC Checked by:
to the ATCT Approved by:
1
3 Pumps acting; flow per pump= 57 l/s903 gpm
2 Pump Head
A- Pipe Losses
Dia Length Eq.leng Flow Fr. losses Losses
in m ft ft GPM L/s ft/100ft ft
8 100 328.08 393.70 903 57.00 1.40 5.51
4 1138 3731.15 4477.38 312 19.70 1.75 78.35
Sub-Total-1 83.87 ft
B- Accessories Losses
ItemDia Qty. Equ. L Flow Fr. losses Losses
in. ft. gpm ft/100ft ft
Pum
p Gate Valve 8 2 9 903.5 1.4 0.25
Globe valve 8 1 220 903.5 1.4 3.08
Check Valve 8 1 80 903.5 1.4 1.12
AH
U
Gate Valve 2.5 1 2.8 65.00 1.40 0.04
2-way control valve 2.5 1 29 65.00 1.40 0.41
Balancing valve 2.5 1 69 65.00 1.40 0.97
Strainer 2.5 1 35 65.00 1.40 0.49
Coil 1 65.00 9.70
Sub-Total-2 16.05 ft
Sum 99.92 ft
Friction Losses 30.46 m
Static head m
sub total= 30.5 m
Total with 10% safety= 33.5 m
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Design calculation sheetProject no: PS05396 Date: 4/11/06 Sheet no.: 1 1 Computed by: S.A.
Subject: Chilled Water Primary Pumps Checked by: H.A.
CUC Approved by: H.A.
1
5 Pumps acting; flow per pump 38 l/s602 gpm
2 Pump Head
A- Pipe Losses
Dia Length Eq.leng Flow Fr. losses Losses
in m ft ft GPM L/s ft/100ft ft
6 60 196.85 226.38 602 38.00 4.50 10.19
Sub-Total-1 10.19 ft
B- Accessories Losses
ItemDia Qty. Equ. L Flow Fr. losses Losses
in. ft. gpm ft/100ft ft
Pum
p Gate Valve 6 2 4.5 602 4.5 0.41
Globe valve 6 1 120 602 4.5 5.40
Isolating valve 6 1 4.5 602 4.5 0.20
Chill
er
Gate Valve 6 1 4.5 602 4.5 0.20
Globe valve 6 1 120 602 4.5 5.40
Cooler pressure drop 1 324 9.40
Sub-Total-2 21.01 ft
Sum 31.20 ft
Friction Losses 9.51 m
Static head 2.0 m
sub total= 11.5 m
Total with 10% safety= 12.7 m
of
Design calculation sheetProject no: D0521-4.2-6 Date: 3/7/07 Sheet no.: 1 1 Computed by: H.S
Subject: Chilled Water Secondary Pumps Checked by: S.A
Approved by:
1
3 Pumps acting; flow per pump= 40 l/s634 gpm
2 Pump Head
A- Pipe Losses
Dia Length Eq.leng Flow Fr. losses Losses
in m ft ft GPM L/s ft/100ft ft
0.75 25.2 82.62295 103.27869 1.0332805 0.0652 1.5 1.54918
4 135 442.26 574.93 170 10.74 1.65 9.49
5 339 1111.55 1445.01 388 24.47 2.5 36.13
5 66 216.54 281.50 431 27.21 3 8.44
6 20 65.62 85.30 634 40.00 2.7 2.30
Sub-Total-1 57.91 ft
B- Accessories Losses
ItemDia Qty. Equ. L Flow Fr. losses Losses
in. ft. gpm ft/100ft ft
Pum
p
Gate Valve 6 2 7 634.0 3.2 0.45
Strainer 6 1 110 634.0 3.2 3.55
Globe valve 6 1 170 634.0 3.2 5.49
Check Valve 6 1 60 634.0 3.2 1.94
FCU
Gate Valve 0.75 1 0.9 1.08 1.50 0.01
2-way control valve 0.75 1 29 1.08 1.50 3.00
Strainer 0.75 1 4 1.08 1.50 0.06
Coil 0.75 1 1.08 3.00
Globe valve 0.75 2 22 1.1 0.6 0.26
Sub-Total-2 17.51 ft
B- Equipment Losses
1-HEAT EXCHANGER
P.D= 7 M Sum 75.42 ft
2- AIR SEPARATOR Friction Losses 22.99 m
P.D= 1.6 M Static head m
sub total= 31.617 m
30% safty factor to account for 41.102096 m
the expansion tak and fittings Total with 10% safety= 45.2
say 46 m
of
B- Accessories Losses
Size Corresponding pipe length(m)
10 3/4" 1.4 0.9 2.3 0.715 1/2" 1.6 1 2.5 0.820 3/4" 2 1.4 3.2 0.925 1" 2.6 1.7 4.1 1.332 1-1/4" 3.3 2.3 5.6 1.740 1-1/2" 4 2.6 6.3 2.150 2" 5 3.3 8.2 2.665 2-1/2" 6 4.1 10 3.280 3" 7.5 5 12 4
3-1/2" 9 5.9 15 4.7100 4" 10 10 17 5.2125 5" 13 13 21 6.5150 6" 16 16 25 7.9200 8" 20 20 - 10250 10" 25 25 - 13300 12" 30 30 - 16350 14" 34 34 - 18400 16" 38 38 - 20450 18" 42 42 - 23500 20" 50 50 - 26600 24" 60 60 - 30
900 ElbowR/d=1
900 ElbowR/d=1.5
900 ElbowStreet
450 ElbowStd
1.1 2.3 2.7 0.9 1.2 1.41.3 2.5 3 1 1.4 1.61.6 3.2 4 1.4 1.9 22.1 4.1 5 1.7 2.3 2.6
3 5.6 7 2.3 3.1 3.33.4 6.3 8 2.6 3.7 44.5 8.2 10 3.3 4.7 55.2 10 12 4.1 5.6 66.4 12 15 5 7 7.57.3 15 18 5.9 8 98.5 17 21 6.7 9 1011 21 25 8.2 12 1313 25 30 10 14 16
- 33 40 13 18 20- 42 50 16 23 25- 50 60 19 26 30- 55 68 23 30 34- 62 78 26 35 38- 70 85 29 40 42- 81 100 33 44 50- 94 115 40 50 60
450 ElbowStreet
1800 ElbowStd
900 T(Separate Flow)
T(Straight Flow) No Reduction
T(Straight Flow) Reduced
1/4
T(Straight Flow) Reduced
1/2
Reduce Sluice Valve Globe Valve
2.7 1.1 0.6 0.3 3.5 173 1.3 0.7 0.4 3.5 184 1.6 0.9 0.5 2.3 225 2.1 1 0.7 1.7 297 3 1.5 0.9 1.3 388 3.4 1.8 1.1 1.7 43
10 4.5 2.3 1.3 1.9 5512 5.2 2.8 1.7 0.48 6915 6.4 3.2 2 0.63 8418 7.3 4 2.4 0.81 10021 8.5 4.5 2.7 0.99 12025 11 6 3.2 1.2 14030 13 7 4 1.4 17040 17 9 5.1 1.7 22050 21 12 7.2 28060 25 13 8 32068 29 15 9 36078 31 17 10 41085 37 19 11 460
100 41 22 13 520115 49 25 16 610
Mitre Elbow900
Mitre Elbow600
Mitre Elbow450
Mitre Elbow300
Angle Valve Foot Valve
6 2.4 5 0.6 - -7 2.4 6 0.7 - 39 3.6 8 0.9 - 4
12 4.5 10 1 - 515 5.4 14 1.5 - 918 6.6 16 1.8 - 1024 8.4 20 2.3 27 1429 10.2 25 2.8 28 2035 12 30 3.2 42 4041 16.5 35 4 48 -47 21 40 4.5 60 -58 24 50 6 80 -70 33 60 7 110 -85 43 80 9 150 -
105 100 12 190 -130 120 13 250 -155 135 15 - -180 150 17 - -200 165 19 - -235 200 22 - -265 240 25 - -
Check Valve(Swing
Type)
Gate Valve
Y-StrainerFlanged End
Y-StrainerScrewed End
Butterfly Valve
