In reciprocating air compressors, the clearance ratio is:

In reciprocating air compressors, the clearance ratio is:
| In reciprocating air compressors, the clearance ratio is:

A. clearance volume to swept volume of the cylinder

B. swept volume to clearance volume of the cylinder

C. clearance volume to total volume of the cylinder

D. total volume to clearance volume of the cylinder

Please scroll down to see the correct answer and solution guide.

Right Answer is: A

SOLUTION

Concept:

Indicator diagram for the reciprocating compressor.

Clearance volume – It is the volume which is remained in the cylinder even after the piston reaches the top dead center. It is denoted by Vc

Swept volume – It is the volume swept by the piston in the cylinder or the volume through which piston travels. It is denoted by Vs

Clearance ratio (C) – it is defined as the ratio of clearance volume and swept volume or \(C = \frac{{{V_c}}}{{{V_s}}}\)