Compressors pressurize gases.  In general, this requires much more work than pumping liquids, and the working fluid experiences a significant increase in temperature, in accordance with the ideal gas law.  Compressors cannot handle wet saturated vapors or liquids, as such fluids cause excessive wear.

Possible modeling assumptions for compressors include adiabatic, isentropic, isothermal, polytropic, and non-polytropic.


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