A vortex tube is a device that separates hot air and cold air without any chemical reaction and combustion reaction. Vortex tube is used in many industrial fields and a lot of different research are being conducted for the vortex tube. However, there are only studies using temperature separation characteristics of vortex tubes.
In this study, it is studied to improve the efficiency of existing system by using vortex tube for material separation at high temperature which is not reported yet. A counter-flow vortex tube is employed to separate material separation. As a preliminary step, the throttle valve ratio and the inlet pressure were investigated. Also, it is confirmed the effect of the well separation zone on the map of temperature separation.
When the pressure is changed from 1 to 3 bar, the low temperature flow rate of the maximum separation point moves from 0.5 to 0.7, and the maximum separation rate is 7%. But the experimental results show that the material separation was less when the inlet temperature was high. Accordingly, as the inlet temperature is increased, the driving force inside the vortex is decreased and the vortex is not properly formed.
When the low temperature flow rate of the maximum separation point moves from 0.5 to 0.7, maximum performance is observed at the low temperature gas. It is shown that the separation of low temperature and material separation are closely related to each other.