Experimental Study On Performance Of Window Air Conditioner System By Optimizing Capillary Tube Configurations With Different Refrigerants

Abstract

Present work focuses on the enhancing of window air conditioning system performance by varying capillary geometry. The selection of the capillary tube is a critical factor on effecting the performance of a VCR system. An examination of the capillary tube in a basic VCR system is essential to comprehend the factors that can improve the overall system performance. In an experimental study with R32 & R407C refrigerant, capillary tubes of length 2m is investigated, with two distinct configurations i.e., helical coiled and straight with two different refrigerants. The diameter of every capillary tube is consistently held at 2mm. The examination focused on assessing how the configuration of the capillary tube affected the overall performance of the system. The results of the experimental study revealed several key findings. Initially, refrigeration effect for R32 is 5.2% high in the coiled configuration compare to straight capillary, Secondly, the COP was greatest in the helical coiled configuration with value of 3.71 compare to straight coiled configuration with same refrigerant flow rate. These findings provide valuable insights into how different capillary tube configurations such as coil diameter can influence the performance of a VCR system and 300 mm coil diameter is retrofit straight capillary.