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7/28/2019 Pcal-3-Pressure at the Stadium Area
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Project: Kaust /TSE COVERAGE EXPANSION
CONTARCT # KSA-0781
Calculation conditions and parameters:
3 pumps are running full speed and providing 3X324m3/hr = 972 m
3/hr
one pump is on standby
pump flow = 324m3/hr at a head = 110m
flow in cv = 80m3/hr, flow in the pipe 200m connected to the discharge of the pump = 150 m3/hr
flow in the new irrigation pipe DN150 = 100m3/hr
Calculation:
pressure drop between the farthest pump and the tie in point of stadium area = 65.11 m (refer to below table)
head at the tie in point of gulf area = 110-65.11 = 44.90 m
pressure at the tie in point = 44.90 m / 10 = 4.5 bar
From: the farthest irrigation pump
PIPE Description length qty dia. inner dia. FLOW velocity material Roughness roughness friction friction loss
# m ND mm m3/hr m/s mm factor e/d factor mm
pipe 5 1
gate valve 1
tee branch 1
pipe 2.2 1
tee branch 1
pipe 6.5 1
check valve 1
gate valve 2
elbow 90 1tee branch 1
pipe 3.5 1
tee run 1
pipe 3.5
tee run 1
pipe 6.4
gate valve 1
pipe 530 1
elbow 90 3
elbow 45 2
tee run 1
9134
line 1
7
line 1
400 340.6 972 2.96 RTR 0.0053 1.5561E-05 0.012
10
3300 324 1.19 DI 0.061
2500 324 0.43 DI
1.35 DI 0.061 0.015 41
0.015
0.00014806
Inside mechanical room
Inside mechanical room
Inside mechanical room
0.00014806
0.00014806
0.016400 324 0.68 DI 0.061
Ref: pcal-11-03
0.00011868
0.00011868
0.00019614 296
DI 0.061 0.014 1031.30
Date: 13/10/2011
Pressure at the tie in point of stadium area
Detailed pressure drop calculation
To: the tie in point at stadium area
Inside mechanical room
Inside mechanical room
514
514
311
1500 972
0.061 0.016
5400
4
6400 412 972 2.03 DI 0.061
Inside mechanical room
0.014 89
412
412
11
648
7/28/2019 Pcal-3-Pressure at the Stadium Area
http://slidepdf.com/reader/full/pcal-3-pressure-at-the-stadium-area 2/2
From: the farthest irrigation pump
PIPE Description length qty dia. inner dia. FLOW velocity material Roughness roughness friction friction loss
# m ND mm m3/hr m/s mm factor e/d factor mm
Detailed pressure drop calculation
To: the tie in point at stadium area
pipe 570 1
elbow 90 2
tee run 1
pipe 720 1
tee run 1
pipe 450 1
tee run 1
elbow 90 1
pipe 1040 1
tee run 1
pipe 360 1
tee run 1
elbow 45 2
pipe 242 1
tee run 1
65114
6.5114
1.9776E-05 0.013 7078
13
line 3
300 268 422 2.08 RTR 0.0053 1.9776E-05 0.013 2675
8169
10
line 1
400 340.6 732 2.23 RTR 0.0053 1.5561E-05 0.012 4337
2.48 RTR 0.0053 1.5561E-05 0.0129
line 1
400 340.6 812
8400 340.6 892 2.72 RTR 0.0053 1.5561E-05 0.012 7986
Total friction loss (mm)
total friction loss (bar)
RTR 0.0053 1.9776E-05 0.012
12
line 3
300 268 572 2.82 RTR 0.0053
25185
11
line 3
300 268 652 3.21
