Ericsson refrigerator

The mass flow rate (1 g/sec) of helium is compressed and heated from 100 kPa and 300 K in an Ericsson refrigeration cycle to a turbine inlet at 800 kPa and 100 K. Determine power required by the compressor, power produced by the turbine, rate of heat removed from the cooler, rate of heat added in the heater, and cycle COP. Draw the T-s diagram of the cycle. 

Stirling and Ericsson refrigerators have practical applications at very low temperatures. 

Absorption Air-Conditioning Brayton Gas Refrigeration Cycle Stirling Refrigeration Cycle Ericsson Cycle Liquefaction of Gases Nonazeotropic Mixture Refrigeration Cycle Design Examples Summary... 

The Ericsson and Postle refrigerators are quite similar. They differ from the Stirling refrigerator in that both of these refrigerators control fluid flows by pressure changes instead of volume changes. The only difference between... 

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