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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
3.41   An ideal gas at a flow rate of 10.0 m3/min enters a compressor at 25°C and 1 bar. It leaves at 1 MPa. During this process, heat is dissipated to the surroundings at a rate of 2100 W. You may take the surroundings to be at a constant temperature of 25°C. The heat capacity of the ideal gas is given by
Â
cP 5 2.00 1 0.0400T R
where T is in [K].
(a)Â Â Â Â Assuming this process is reversible, calculate the temperature at the compressor outlet.
(b)Â Â Â Â Calculate the minimum power required to compress the gas.
(c)Â Â Â Â If the compressor efficiency is 70%, calculate the actual power needed.
(d)Â Â Â Calculate the actual final temperature.
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