Effect of large clearance volume in a reciprocating compressor If the clearance volume of a reciprocating compressor is large, what is the primary effect on delivered flow? Choose the correct outcome.

Concept/ApproachA larger clearance volume increases the fraction of residual compressed air that re-expands during the suction stroke, reducing the volumetric efficiency. As a result, the net fresh air inducted (and thus delivered volume flow) decreases.

Common pitfallConfusing volumetric efficiency with pressure ratio; clearance volume primarily affects capacity, not the set pressure ratio (which is governed by system resistance and valve behavior).

Final AnswerReduced volume flow rate