Experimental Investigation and Analyze the Effect of Varying L/D on Thermal Performance of Vortex Tube

Abstract

Traditional vapour compression systems are known to be costly and require regular maintenance due to their numerous moving parts. However, a promising alternative is the vortex tube refrigeration system, which operates without any moving components. This system functions as a miniature refrigerator by effectively dividing the compressed gas into two separate streams: one hot and one cold. In order to maximize the temperature reduction achieved by this system, a study was conducted to assess its thermal performance based on various geometric parameters. Specifically, the investigation focused on the influence of the length-to-diameter (L/D) ratio of the vortex chamber under different inlet pressure conditions. Experimental trials were conducted with different L/D ratios, and the analysis primarily focused on the extent of low temperature fraction attained. The results highlighted the significance of the L/D ratio in determining the overall performance of the vortex tube cooling system