Answer to Question #215462 in Mechanical Engineering for Aron

Question #215462
12 kg/min of air are isothermally compressed from 99 kPaa and specific volume of 0.81 m3/kg to a final pressure of 600 kPaa. What is the heat loss during compression?
1
Expert's answer
2021-07-11T23:46:02-0400

Given :-


Mass Flow rate (m)= 0.2 kg/s


Intial State(1)


P1= 99 Kpa


v1= 0.81 m3/Kg


Final State(2)


P2= 600 Kpa


In a Isothermal process magnitude of work is equal to heat loss or gain


W = mP1v ln(P1/P2)


W = 0.2* 99000*.81 *ln(99/600)

W = - 28897.7 J


HEAT LOSS = 288897.5 j



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