Heat in = 30 ton, Temperature 1 = -20 F, Pressure ofcompression 1 = 80 lbf/in^2,

Question

Heat in = 30 ton, Temperature 1 = -20 F, Pressure ofcompression 1 = 80 lbf/in^2, Pressure of compressor 2 = 80lbf/in^2, Pressure 4 = 250 lbf/in^2, efficency of both compressors= 85% I am confused on what h7 is to be after going thru the directcontact heat exchanger. Heat in = 30 ton, Temperature 1 = -20 F, Pressure ofcompression 1 = 80 lbf/in^2, Pressure of compressor 2 = 80lbf/in^2, Pressure 4 = 250 lbf/in^2, efficency of both compressors= 85% I am confused on what h7 is to be after going thru the directcontact heat exchanger.

Explanation / Answer

Hey, Look, You know that P7 is 80 lb/in2 , and thephase is saturated Liquid !, so you can find h7 easily,and it's going to be 91.22 Btu/lb Thanks

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