Question: Repeat Problems 11.137, but assume that helium is the cycle working fluid instead of air. Discuss the significance of the results. A heat exchanger is

Repeat Problems 11.137, but assume that helium is the cycle working fluid instead of air. Discuss the significance of the results.
A heat exchanger is incorporated into an ideal air-standard refrigeration cycle, as shown in Fig. P11.137. It may be assumed that both the compression and the expansion are reversible adiabatic processes in this ideal case. Determine the coefficient of performance for the cycle.

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Standard air refrigeration cycle with helium and states as T 1 T 3 15 o C 2882 ... View full answer

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