3.18. Water is pumped from a supply reservoir to a ductile iron water transmission line, as shown in Figure 3.26. The high point of the transmission line is at point A, 1 km downstream of the supply reservoir, and the low point of the transmis- sion line is at point B, 1 km downstream of A. If the flowrate through the pipeline is 1 m³/s, the diameter of the pipe is 750 mm, and the pressure at A is to be 350 kPa, then: (a) esti-

Structural Analysis
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Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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3.18. Water is pumped from a supply reservoir to a ductile
iron water transmission line, as shown in Figure 3.26. The high
point of the transmission line is at point A, 1 km downstream
of the supply reservoir, and the low point of the transmis-
sion line is at point B, 1 km downstream of A. If the flowrate
through the pipeline is 1 m³/s, the diameter of the pipe is
750 mm, and the pressure at A is to be 350 kPa, then: (a) esti-
mate the head that must be added by the pump; (b) estimate
the power supplied by the pump; and (c) calculate the water
pressure at B.
Supply P
reservoir
Elev. 7 m
Pump
A
Elev. 10 m
Elev. 4 m
Transmission
line
B
Transcribed Image Text:3.18. Water is pumped from a supply reservoir to a ductile iron water transmission line, as shown in Figure 3.26. The high point of the transmission line is at point A, 1 km downstream of the supply reservoir, and the low point of the transmis- sion line is at point B, 1 km downstream of A. If the flowrate through the pipeline is 1 m³/s, the diameter of the pipe is 750 mm, and the pressure at A is to be 350 kPa, then: (a) esti- mate the head that must be added by the pump; (b) estimate the power supplied by the pump; and (c) calculate the water pressure at B. Supply P reservoir Elev. 7 m Pump A Elev. 10 m Elev. 4 m Transmission line B
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