Experimental Analysis on Heat And Mass Transfer and Separation Process Inside A DCVT Based on Pressure Distribution

Abstract

The types of vortex tubes (VTs) or air separators (professional separating, heating and cooling systems used in large engines like submarines, ships and etc) are usually determined based on the position of cold and hot exit areas. Based on these arrangements, there are three general types of vortex tubes including; Ranque- Hilsch (opposite directions), Parallel (same direction) and Double-Circuit (opposite directions with an extra injection at the center of hot valve). This study tries to present a comprehensive study on Double-Circuit vortex tube (DCVT). In this study the impact of pressure ratio (extra injection pressure/inlet pressure) on the separation quality is investigated. Based on the experimental results there are optimum values for the nondimensional pressure (P_ex/P_in) equal to and 0.2.