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| Teaching Since: | May 2017 |
| Last Sign in: | 408 Weeks Ago, 1 Day Ago |
| Questions Answered: | 66690 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
A single-acting reciprocating water pump, with a bore and stroke of 150 mm and 300 mm respectively, runs at 2.51 rad ·s−1 (0.4 rev/s). Suction and delivery pipes are each 75 mm diameter. The former is 7.5 m long and the suction lift is 3 m. There is no air vessel on the suction side. The delivery pipe is 300 m long, the outlet (at atmospheric pressure) being 13.5 m above the level of the pump, and a large air vessel is connected to the delivery pipe at a point 15 m from the pump. Calculate the absolute pressure head in the cylinder at beginning, middle and end of each stroke. Assume that the motion of the piston is simple harmonic, that losses at inlet and outlet of each pipe are negligible, that the slip is 2%, and that f for both pipes is constant at 0.01. (Atmospheric pressure ≡ 10.33 m water head.)
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