Consider an ideal gas refrigeration cycle using helium as
Chapter 11, Problem 136P(choose chapter or problem)
Problem 136P
Consider an ideal gas refrigeration cycle using helium as the working fluid. Helium enters the compressor at 100 kPa and 17°C and compressed to 400 kPa. Helium is then cooled to 20°C before it enters the turbine. For a mass flow rate of 0.2 kg/s, the net power input required is
(a) 28.3 kW
(b) 40.5 kW
(c) 64.7 kW
(d) 93.7kW
(e) 113kW
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