Design and Computation of COP of Vortex Tube

Vortex tube is a mechanical device operating as a refrigerating machine without any moving parts, by separating a compressed gas stream into a low total temperature region and a high one .A vortex tube is a device capable of production of both higher and lower temperatures simultaneous at both ends of the tube. The vortex tube's construction is such that it is made up of a hollow tube of either metallic or fibre components having a nozzle for letting in of compressed air and a diaphragm or a orifice for controlling the flow rate of air. W hen compressed air passes through a nozzle into the diaphragm of the vortex tube, the air forms a spiral shaped vortex, that causes the heating up of air, and when this air returns back, it cools down rapidly, producing a cooling effect. As the mass flow rates changes, the temperature gap between the atmospheric air and air through the cold end varies. In this paper, the calculations for flow rates are measured and the designs are similar to what was taken by Hilsch, Reynold and Albohrn.