Mass flow rate of air compressed in axial flow compressor

Q.  The mass flow rate of air compressed in axial flow compressor is _____________centrifugal compressor.
- Published on 16 Sep 15

a. lower than
b. higher than
c. same as
d. unpredictable

ANSWER: higher than

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    Discussion

  • Pankaj   -Posted on 15 Oct 15
    Centrifugal as well as axial flow compressors operate on the air or gas to produce a change in momentum on the expense of external work supplied. This results into increase in pressure of the gas.

    A centrifugal compressor can develop pressure ratio upto 4 per stage while an axial flow compressor can develop a pressure ratio only upto 1.2 to 1.3 per stage. But axial compressors are more efficient than the centrifugal compressors, as the total pressure ratio developed in multistage centrifugal compressors is limited only upto 10 whereas axial flow compressors can develop pressure ratio upto 20 in 10 to 14 stages.

    Therefore the mass flow rate of air compressed in axial flow compressor is higher than that of centrifugal compressor.

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