Vapor Compression Refrigeration:-
In a vapor compression cycle, the compressor raises the temperature of the refrigerant high enough that it can reject heat to the atmosphere, then the expansion valve reduces the temperature of the refrigerant low enough that it can absorb heat from the conditioned space.
Compressors
Compressors are important since Win = Wcomp.
Compressing vapor requires more work than compressing liquid since:
dw = v dP and vliquid << vvapor
Reciprocating Compressors
Small (1 to 50 tons)
