Theoretical and Experimental Performance Evaluation of Vapour Compression Refrigeration System Using Organic and Inorganic Pads in Evaporative Cooled Condenser

摘要

Increasing the coefficient of performance of vapour compression refrigeration systems with conventional air-cooled condensers is a challenging problem especially in areas having adverse ambient conditions. An effective way of tackling this problem by employing an evaporative-cooledcondenser is proposed in this paper. To study the effect of evaporative cooling on the performance of the VCRS under different ambient temperatures of 20, 23 and 26 °C, an evaporative cooler is coupled with the conventional air-cooler. This paper also compares the effect of using organic(cellulose) and inorganic (steel-wire) pads in an evaporative cooler on the performance of VCRS. Experimental results show that at 20 °C the performance of the system is increased by 4.29% and 1.45% by employing an evaporative cooler using cellulose and steel-wire pads respectively. Effecton the performance of the system will be more pronounced if evaporative coolers having high heat transfer coefficients are employed.