Select the incorrect statement with regard to rotary compressors.
They have more vibration and pulsation in the flow than piston-cylinder
compressors
They Operate at a higher speed than piston cylinder compressors and are
used when large Dow rates are needed
They can be centrifugal compressors
They can be flow compressors
They have more vibration and pulsation in the flow than piston-cylinder
compressors
The vibration
and pulsation in rotary compressor is less than reciprocating compressor
because reciprocating compressors have more moving parts.
Hence, the correct option is (A).
&Key Points:-
A
rotary-screw compressor is a type of gas compressor, such as an air compressor,
that uses a rotary-type positive-displacement mechanism. The gas compression
process of a rotary screw is a continuous sweeping motion, so there is very
little pulsation or surging of flow, as occurs with piston compressors.
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