The efficiency of the vane blower is (where W1 = Work done due to compression and W2 = Work done due to back flow)
A. $$\frac{{{{\text{W}}_1}}}{{{{\text{W}}_1} + {{\text{W}}_2}}}$$
B. $$\frac{{{{\text{W}}_2}}}{{{{\text{W}}_1} + {{\text{W}}_2}}}$$
C. $$\frac{{{{\text{W}}_1} + {{\text{W}}_2}}}{{{{\text{W}}_1}}}$$
D. $$\frac{{{{\text{W}}_1} + {{\text{W}}_2}}}{{{{\text{W}}_2}}}$$
Answer: Option B
Solution(By Examveda Team)
The efficiency of the vane blower is $$\frac{{{{\text{W}}_2}}}{{{{\text{W}}_1} + {{\text{W}}_2}}}$$Where,
W1 = Work done due to compression
W2 = Work done due to back flow
Related Questions on Compressors, Gas Turbines and Jet Engines
The compression ratio for the compressor is always _________ unity.
A. Equal to
B. Less than
C. More than
D. None of these
The hottest point in a gas turbine is
A. At the base
B. At the tip
C. In the center
D. Between ~ to i of the blade height
Temperature of gases at end of compression as compared to exhaust gases in a gas turbine is
A. Higher
B. Lower
C. Equal
D. Can't be compared
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