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Effect of isentropic efficiency on Mollier Diagram

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MechEng92

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May 12, 2015
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I am trying to create an interactive spreadsheet for refrigerant mollier diagrams in excel. So far I can plot the cycle from evap temp, condensing temp, sub cool and suction superheat, but with a perfectly isentropic relationship on the compression phase. I have the isentropic efficiency of a compressor for an evap and cond temp, how will this effect the diagram? How do I calculate new values to plot the compression phase with the efficiency?
 
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