EXAMPLE-1

Refrigerant 134-a enters a compressor with 80%isentropic efficiency at 150 kPa as saturatedvapor and compressed with a pressure raito of5. Steam is completely condensed after thecondenser.Calculate ;

a)Energetic COP value

b)Second law COP value

t

s

EXAMPLE-2

Prepared by;

HARPUT Zafer

GÜVEN Ergi