Mechanical Engineering - Compressors, Gas Dynamics and Gas Turbines - Discussion
Discussion Forum : Compressors, Gas Dynamics and Gas Turbines - Section 2 (Q.No. 39)
39.
The clearance, in a single stage, single acting reciprocating air compressor does not effect the workdone on the air and the power required for compressing the air.
Discussion:
4 comments Page 1 of 1.
Vinay said:
5 years ago
Clearance hasn't effect on WD. It effects on the volume flow rate.
K910 said:
6 years ago
As clearance volume < swept volume there is increase in power requirement as area decreases on pv diagram the size of compressor increase and it causes loss of stroke due to which the volumetric efficiency of compressor drops Large bumping clearance retards the formation of vacuum on the suction stroke and thus less air is drawn inside for compression and accordingly the weight of the air delivered is reduced proportional to the clearance volume and hence bumping clearance is about 0.5% to 1% of the bore of the cylinder.
Sahil said:
7 years ago
But clearance decreases the area under pv diagram so how come if does not affect wd?
Daka said:
9 years ago
Clearance hasn't effect on WD. It effects on the volume flow rate.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers