Experimental Study on Enhancement of COP of VCC Refrigeration System by using Diffuser after Compressor

This paper describes the experimental analysis of vapor compression refrigeration system by using the diffuser at inlet of condenser concept. A diffuser before inlet of condenser for a vapor compression system is provided. The diffuser has an inlet to accept a compressed liquid refrigerant from a compressor of a refrigeration system. The refrigerant coming out of the diffuser has higher-pressure level than that of refrigerant entering the diffuser. The purpose of a compressor in VCRS is to increase the pressure of the refrigerant. In the condenser, there is a drop in pressure across the tubes thereby increasing the power consumption of the compressor. This paper is an experimental study to minimize the compressor work by providing a diffuser at the inlet of the condenser. Diffuser converts the high velocity of liquid refrigerant coming out from the compressor into the pressure energy. Diffuser is a device which recovers the pressure without any work input. Refrigerant from the compressor discharge enters the diffuser and increases its pressure and temperature considerably.