A two - stage compressor with a clearance of 6% receives 80 lb/min of air at 14
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A two - stage compressor with a clearance of 6% receives 80 lb/min of air at 14 psia and 850F and delivers it at 120 psia. The compressions are polytropic with n=1.30, and the intercooler cools the air back to 850F.
Find
(a) the work,
(b) the heat transferred in the various processes,
(c) the work for a single - stage machine,
(d) the corresponding percentage saving for the two - stage machine, and
(f) the mass of water to be circulated through the intercooler if its temperature rise is 15% 0F
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