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Consider a compressor in which air enters at 1 bar, 27°C and exits at 3.5 bar,...

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Mechanical Engineering

Consider a compressor in which air enters at 1 bar, 27°C andexits at 3.5 bar, 127°C. The work required is 127 kJ/kg of airflowing through the compressor. Heat transfer between thecompressor and environment occurs at 27°C.

Determine

(a) the heat transfer, in kJ/kg

(b) the entropy generation rate, in kJ/kg.K, for the compressoras a control volume

(c) the entropy generation rate, in kJ/kg.K, for the compressorand the surrounding environment

(d) the entropy generation rate, in kJ/kg.K, for the environmentalone.

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