The multistage compression of air as compare to single stage compression:
Improves volumetric efficiency for the given pressure ratio
Increases
work done per kg of air
Does not improve volumetric efficiency for the given pressure ratio
Gives less
uniform torque
Improves volumetric efficiency for the given pressure ratio
Following are the advantages of
multi-stage compression over single-stage compression:
The fluid can be compressed to very high
pressure.
Volumetric efficiency of compressor
increases due to reduced pressure ratio in each stage.
It reduces work of compression per kg of
refrigerant.
It gives more uniform torque, hence size
of flywheel is reduced.
Heat removal during condensation is
reduced hence size of condenser is reduced.
Hence, the correct option is (A).
Preparing students for success in a changing World.
We care about our students
RPSC-AE, RSMSSB-JE, SSC-JE, RRB-JE, PSU's