An ideal Brayton refrigeration cycle has a compressor pressure ratio of 7. At the compressor inlet, the pressure and temperature of the entering air are 22 lbf/in. and 450°R, respectively. The temperature at the inlet of the turbine is 680°R. The compressor and turbine have esentropic efficiencies of 75% and 0.88%, respectively. (d) the rate of entropy production in the compressor, in Btu/min · R. (e) the rate of entropy production in the turbine, in Btu/min · R

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