Page 257 - Water Engineering Hydraulics, Distribution and Treatment

235
Table 7.15
Length
Diameter
(ft)
(ft)
Pipe
(m)
(mm)
(in)
(m)
Pipe
6.1
8
200
20
400
150
6
P-9
P-1
200
61.0
8
6
91.4
300
150
200
P-2
8
6
600
500
200
150
P-11
P-3
152.4
137.2
200
150
P-12
8
450
500
P-4
6
152.4
6
500
P-5
121.9
P-13
150
152.4
6
150
400
61.0
91.4
P-6
150
6
P-14
200
300
150
6
250
8
P-15
200
609.6
10
2,000
P-7
76.2
250
150
6
P-8 Pipe information for Problem 7.3 Length 182.9 P-10 (in) Diameter (mm) Problems/Questions 121.9
400
121.9
Table 7.16 Junction information for Problem 7.3
Average Peak Minimum Fire with Fire without
Elevation day hour hour sprinkler sprinkler
Junction (ft) (m) (gpm) (L/min) (gpm) (L/min) (gpm) (L/min) (gpm) (L/min) (gpm) (L/min)
J-1 250 76.2 0 0 0 0 0 0 0 0 0 0
J-2 260 79.2 0 0 0 0 0 0 0 0 0 0
J-3 262 79.9 20 75.7 50 189.3 2 7.6 520 1,968.2 800 3,028
J-4 262 79.9 20 75.7 50 189.3 2 7.6 520 1,968.2 800 3,028
J-5 270 82.3 0 0 0 0 0 0 0 0 800 3,028
J-6 280 85.3 0 0 0 0 0 0 0 0 800 3,028
J-7 295 89.9 40 151.4 100 378.5 2 7.6 40 151.4 40 151.4
J-8 290 88.4 40 151.4 100 378.5 2 7.6 40 151.4 40 151.4
J-9 285 86.9 0 0 0 0 0 0 0 0 0 0
J-10 280 85.3 0 0 0 0 0 0 360 1,362.6 160 605.6
J-11 270 82.3 160 605.6 400 1,514.0 30 113.6 160 605.6 160 605.6
Table 7.17 Results summary for Problem 7.3
Fire with Fire without
Variable Average day Peak hour Minimum hour sprinkler sprinkler
Node w/ low pressure
Low pressure (psi)
Node w/ high pressure
High pressure (psi)
Pipe w/ max. velocity
Max. velocity (ft/s)
Tank in/out flow (gpm)
Pump discharge (gpm)
Conversion factors: 1 ft/s = 0.3048 m/s; 1 gpm = 3.785 L/min; 1 psi = 6.94 kPa.