A pump draws water from a 20 cm diam suction pipe and discharges through a 15 cm diam pipe in which the velocity is 3.60 m/s. The pressure is – 34. 465 kPa at A in the suction pipe. The 15 cm diam pipe discharges horizontally into air at C. To what height h above B can the water be raised if B is 1.8 m. above A and 20 hp is delivered to the pump? Assume that the pump operates at 80 % efficiency and that the frictional loss in the pipe between A and C is 3 m. Determine the inclination angle at point C for the water stream to reach a range of 50 m. Also, calculate the maximum height that the water can go from the selected datum plan
A pump draws water from a 20 cm diam suction pipe and discharges through a 15 cm diam pipe in which the velocity is 3.60 m/s. The pressure is – 34. 465 kPa at A in the suction pipe. The 15 cm diam pipe discharges horizontally into air at C. To what height h above B can the water be raised if B is 1.8 m. above A and 20 hp is delivered to the pump? Assume that the pump operates at 80 % efficiency and that the frictional loss in the pipe between A and C is 3 m. Determine the inclination angle at point C for the water stream to reach a range of 50 m. Also, calculate the maximum height that the water can go from the selected datum plan
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
A pump draws water from a 20 cm diam suction pipe and discharges through a
15 cm diam pipe in which the velocity is 3.60 m/s. The pressure is – 34. 465 kPa
at A in the suction pipe. The 15 cm diam pipe discharges horizontally into air at
C. To what height h above B can the water be raised if B is 1.8 m. above A and
20 hp is delivered to the pump? Assume that the pump operates at 80 %
efficiency and that the frictional loss in the pipe between A and C is 3 m.
Determine the inclination angle at point C for the water stream to reach a range of 50 m. Also, calculate the maximum height that the water can go from the selected datum plane.
Transcribed Image Text:Zc- 1-8 6 Ve
29
Heco-o= 3m
hmax = ?
Suction pipe
Discharge pipe
1.80 m
pump-
29
Datumline
Transcribed Image Text:Given:
h
Suction pipe
Discharge pipe
1.80 m
A
pump
Datum line
DA = 20 cm = 0.20 m
Dg = Dc = 15 cm = 0.15 m
PA = - 34.465 KPa (suction pressure)
Vs = Vc = 3.6 m/s
Pc = 0 (atmospheric pressure)
BHP = 20 hp
Pump efficiency = 80%
HLIA-C) = 3 m
%3D
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