Question: 1. A simple NH3 vapour compression system has compressor with piston displacement of 2m3/min, a condenser of 12 bar and evaporating pressure of 2.5

1. A simple NH3 vapour compression system has compressor with piston displacement

1. A simple NH3 vapour compression system has compressor with piston displacement of 2m3/min, a condenser of 12 bar and evaporating pressure of 2.5 bar. The liquid is sub-cooled to 20 oC by soldering the liquid line to suction line. The temperature of vapour leaving the compressor is 100 oC, heat rejected to compressor cooling water is 5000 kj/ hr, and volumetric efficiency of compressor is 0.8.Compute: capacity; indicated power; and COP of the system.

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