A single-stage, single-acting air compressor with runs at 700 r/min. It has a polytropic index of 1.25. The induced volume flow rate is 0.65 m³/min and the air must be delivered at 700 kPa. The free air conditions are 101.3 kPa and 15 °C. The clearance volume is 6% of the stroke volume and the stroke/bore ratio is 1.5/1.

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A single-stage, single-acting air compressor with runs at 700 r/min. It has
a polytropic index of 1.25. The induced volume flow rate is 0.65 m³/min
and the air must be delivered at 700 kPa. The free air conditions are
101.3 kPa and 15 °C. The clearance volume is 6% of the stroke volume
and the stroke/bore ratio is 1.5/1.
Draw a P-V-diagram to illustrate the operation of the compressor and
indicate the stroke volume, clearance volume and induced volume.
Calculate:
The volume of air induced into the compressor,
The stroke volume of the cylinder,
The bore of the piston,
The volumetric efficiency,
The delivery air temperature,
The indicated power.
Transcribed Image Text:Practice A single-stage, single-acting air compressor with runs at 700 r/min. It has a polytropic index of 1.25. The induced volume flow rate is 0.65 m³/min and the air must be delivered at 700 kPa. The free air conditions are 101.3 kPa and 15 °C. The clearance volume is 6% of the stroke volume and the stroke/bore ratio is 1.5/1. Draw a P-V-diagram to illustrate the operation of the compressor and indicate the stroke volume, clearance volume and induced volume. Calculate: The volume of air induced into the compressor, The stroke volume of the cylinder, The bore of the piston, The volumetric efficiency, The delivery air temperature, The indicated power.
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