4 Calculate the isothermal and polytropic work of a reciprocating compressor and thus deduce the isothermal efficiency. Explain any discrepancies. Air with an initial volume of 0.1 m3 pressure 1 bar and temperature 15°C is compressed according to the law through a 8:1 compression ratio. It is then expanded isothermally back to its initial volume. Determine: - a) the pressure and temperature after compression b) the final pressure c) the polytropic and Isorthermal work done and explain any discrepancies d) the isothermal efficiency

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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4.
Calculate the isothermal and polytropic work of a reciprocating compressor and thus deduce
the isothermal efficiency. Explain any discrepancies.
Air with an initial volume of
0.1 m3 pressure 1 bar and temperature 15°C is compressed according to the law through a
8:1 compression ratio. It is then expanded isothermally back to its initial volume.
Determine: -
the pressure and temperature after compression
a)
the final pressure
b)
the polytropic and Isorthermal work done and explain any discrepancies
c)
the isothermal efficiency
d)
Transcribed Image Text:4. Calculate the isothermal and polytropic work of a reciprocating compressor and thus deduce the isothermal efficiency. Explain any discrepancies. Air with an initial volume of 0.1 m3 pressure 1 bar and temperature 15°C is compressed according to the law through a 8:1 compression ratio. It is then expanded isothermally back to its initial volume. Determine: - the pressure and temperature after compression a) the final pressure b) the polytropic and Isorthermal work done and explain any discrepancies c) the isothermal efficiency d)
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