a compressor is cooled by an oil which is flowing at 0.7kg/s .The oil temperuture increases...

a compressor is cooled by an oil which is flowing at 0.7kg/s .The oil temperuture increases throught the compressore by 45 c .Air enrers the compressor at 20 C and 1 bar,and it leaves the compressor at 7 bar , The air volumetric flow rate is 0.5m2/s The compressor is running at 115Kw power ,the specific heat of oil us 2200j/kgk,the specific heat of air is 1 kj/kgk the air specific heat ratio is 1.4 and the gas constrant is 0.287 kg/kgk. assume air as an ideal gas caluculate

a.the mass flow rate of air

b. the air exit temperature

c.the air entrophy change

Expert Solution

genius_generous answered 2 years ago

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