4. A single-acting reciprocating pump has a diameter (piston) of 150 mm and stroke length 350 mm. The centre of the pump is 3.5 m above the water surface in the sump and 22 m below the delivery water level. Both the suction and delivery pipes have the same diameter of 100 mm and are 5 m and 30 m long respectively. If the pump is working at 30 r.p.m., determine: (i) The pressure heads on the piston at the beginning, middle and end of both suction and delivery strokes.

4. A single-acting reciprocating pump has a diameter (piston) of 150 mm and stroke length 350 mm. The centre of the pump is 3.5 m above the water surface in the sump and 22 m below the delivery water level. Both the suction and delivery pipes have the same diameter of 100 mm and are 5 m and 30 m long respectively. If the pump is working at 30 r.p.m., determine: (i) The pressure heads on the piston at the beginning, middle and end of both suction and delivery strokes.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

4. A single-acting reciprocating pump has a diameter (piston) of 150 mm and stroke
length 350 mm. The centre of the pump is 3.5 m above the water surface in the
sump and 22 m below the delivery water level. Both the suction and delivery pipes
have the same diameter of 100 mm and are 5 m and 30 m long respectively. If the
pump is working at 30 r.p.m., determine:
(i) The pressure heads on the piston at the beginning, middle and end of both
suction and delivery strokes.
(ii) The power required to drive the pump.
Take atmospheric pressure as 10.3 m of water.

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