Experimental investigation & CFD analysis of Ranque-Hilsch vortex tube

For both insulated and non-insulated condition, temperature separation increases with increase in inlet pressure. Performance of insulated VT is better than non-insulated VT. It is proposed that significant heat leakage from atmosphere to VT is responsible for performance degradation of non insulated VT. Results of present experimental as well as CFD study in non-dimensional form are observed to be in good agreement with those of other works. Also, it is concluded that cooling power separation seems more realistic performance parameter of VT than cold end temperature alone.