=+15-9.

Saturated R-22 at 45 F (7 C) enters the compressor of a single-stage system. Discharge pres-

sure is 275 psia (1.90 MPa). Suction valve pressure drop is 2 psi (13.8 kPa). Discharge valve pressure drop is 4 psi (27.6 kPa). Assume the vapor is superheated 10 F (5.6 C) in the cylinder during the intake stroke. Piston clearance is 5 percent. Determine the

(a) volumetric efficiency,