Chemical Engineering - Chemical Engineering Basics - Discussion
Discussion Forum : Chemical Engineering Basics - Section 2 (Q.No. 23)
23.
With increase in compression ratio, the volumetric efficiency of air compressor
Discussion:
2 comments Page 1 of 1.
Ifub said:
2 years ago
The following factors affect volumetric efficiency:
An increase in clearance volume causes a decrease in volumetric efficiency.
An increase in compression ratio also decreases the volumetric efficiency.
Piston ring leakage allows gas from the compression chamber to escape the piston and enter the other end of the cylinder. This reduces the volumetric efficiency.
Valve slip leads to reversal of gas flow through the valves. This leads to volume loss at the inlet and outlet valves. Thus, decreasing the volumetric efficiency.
An increase in clearance volume causes a decrease in volumetric efficiency.
An increase in compression ratio also decreases the volumetric efficiency.
Piston ring leakage allows gas from the compression chamber to escape the piston and enter the other end of the cylinder. This reduces the volumetric efficiency.
Valve slip leads to reversal of gas flow through the valves. This leads to volume loss at the inlet and outlet valves. Thus, decreasing the volumetric efficiency.
Yashwant said:
10 years ago
Increase in compression ratio will decrease required volume so volumetric efficiency will increase.
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