Answer to Question #344378 in Mechanical Engineering for BUBBLY

Question

A two-stage, double-acting compressor is to deliver 90 lb/min of air from 14.3 psia and 90 ̊F to a final pressure of 185 psia. The normal barometer is 29.8 in. Hg and the temperature are 80 ̊F. The pressure drop in the intercooler is 3 psi and the temperature of the air at the exit of the intercooler is 90 ̊F, the speed is 210 remand pV1.34 =C during compression and expansion. The clearance is 5% for both cylinder. The temperature of the cooling water increases by 18 ̊F. Find: a) The volume of free air b) The discharge pressure of the low-pressure cylinder for minimum work, c) The temperature at discharge from both low pressure and high-pressure cylinders d) The mass of cooling water to be circulated about each cylinder and through the intercooler e) The work f) If, for the low-pressure cylinder, L/D = 0.68 and if both cylinders have the same stroke, what should be the cylinder dimensions?