Mechanical Engineering :: Compressors,Gas Dynamics and Gas Turbines
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Which of the following statement is wrong?
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In a single acting reciprocating compressor, the suction, compression and delivery of air takes place in __________ of the piston.
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The increase in pressure in a vane blower takes place first due to compression and then due to back flow of air.
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Intercooling in multi-stage compressors is done
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For a two stage reciprocating compressor, compression from p1 to p3 is with perfect intercooling and no pressure losses. If compression in both the cylinders follows the same polytropic process and the atmospheric pressure is pa, then the intermediate pressure p2 is given by
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The ratio of workdone per cycle to the stroke volume of the compressor is known as
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The clearance volume in the compressor is kept minimum because it effects on volumetric efficiency.
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The inlet pressure is always __________ the discharge pressure.
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A.
In a two stage reciprocating air compressor with complete intercooling, maximum work is saved.
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B.
The minimum work required for a two stage reciprocating air compressor is double the work required for each stage.
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C.
The ratio of the volume of free air delivery per stroke to the swept volume of the piston is called volumetric efficiency.
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D.
none of the above
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