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| Teaching Since: | May 2017 |
| Last Sign in: | 399 Weeks 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 hydraulic lift cage of mass 225 kg, carrying a load of 1 Mg, is fixed on the vertical plunger of a hydraulic ram. It is counterbalanced by a 180 kg weight on a cable over a pulley above the plunger. Water from a mains supply at 2.75 MPa operates the lift through a horizontal pipe 60 m long, 40 mm diameter, f = 0.006. The gland friction at the plunger is 1.13 kN and the initial upward acceleration of the cage is to be 1.5 m ·s−2. Calculate the plunger diameter and the maximum steady lifting speed with the full load. Neglect minor losses in the pipe.
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