Physics
Physics, 02.07.2019 00:20, msroxcie

Air is compressed from 1 bar and 27ο‚°c (state 1) to 2.1 bar (state 2) in an axial flow compressor. work required for the compression process is 94.6 kj/kg. heat transfer of 14 kj/kg occurs from the compressor to the surroundings at an average surface temperature of 40ο‚°c. assume that the surrounding pressure is 1 bar and temperature is 20ο‚°c. consider variable specific heats for air. molecular weight of air = 28.97 kg/kmol. (a) calculate temperature (k) of air at the compressor exit. (b) find the exergy destroyed (kj/kg) during the compression process using entropy generation. (c) perform an exergy accounting of the compressor. answers: (a) 380 k; (b) 20.5 kj/kg

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Air is compressed from 1 bar and 27ο‚°c (state 1) to 2.1 bar (state 2) in an axial flow compressor. wo...

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