Merits and Demerits of Vapour Compression System Over Air Refrigeration System

Merits and Demerits of Vapour Compression System Over Air Refrigeration System Points : Merits and Demerits of Vapour Compression System Over Air Refrigeration System Merits 1. C.O.P. is quite high as the working of cycle is very near to that of reversed Carnot cycle;
2. When used on ground level the running cost of vapour-compression refrigeration system is only 1/5th of air refrigeration system.
3. For the same refrigeration effect the size of the evaporator is smaller.
4. The required temperature of evaporator can be achieved simply by adjusting the throttle valve of the same unit. Demerits 1. Initial cost is high.
2. The major disadvantages are inflammability, leakage of vapours and toxity.
These have been overcome to great extent by improvement in design.