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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
1.51 The crankshaft of a single-cylinder air compressor rotates 1800 rpm. The piston area is 2000 mm2, and the piston stroke is 50 mm. Assume a simple “idealized” case where the average gas pressure acting on the piston during the compression stroke is 1 MPa, and pressure during the intake stroke is negligible. The compressor is 80% efficient. A flywheel provides adequate control of speed fluctuation.
(a) What motor power (kW) is required to drive the crankshaft?
(b) What torque is transmitted through the crankshaft? [Ans.: 3.75 kW, 19.9 N # m]
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