TECHNOLOGY Experimental Performance of Window Air Conditioner Using Alternative Refrigerants with Different Configurations of Capil lary Tube A Review

This review paper presents the work of various re searches on the performance of capillary tube ,used in air conditioners with various refrigerants. Research ca rried out by different authors uses different type of capillary tubes (straight, twisted, coiled) in different length and diameter. they determined various parameters like coefficient of performance (COP),cooling capacity, energy efficiency ratio (EER) of the system. Various approaches ha ve been used by different authors to predict the performanc e of capillary in window air conditioner using alte rnative refrigerant as capillary expansion device.