Computational Fluid Dynamics Study on the Effects of L/D Ratio in a 2 Stage Hot Cascade Vortex Tube
R. Madhu Kumar1, N.V.V.S. Sudheer2

1R. Madhu Kumar, School of Mechanical Engineering, R.G.M. College of Engineering & Technology, Nandyal, Kurnool (Andhra Pradesh), India.
2N. V. V. S. Sudheer, Department of Mechanical Engineering, RVR & JC College of Engineering, Guntur (Andhra Pradesh), India.
Manuscript received on 27 February 2019 | Revised Manuscript received on 14 March 2019 | Manuscript Published on 17 March 2019 | PP: 121-124 | Volume-7 Issue-ICETESM18, March 2019 | Retrieval Number: ICETESM29|19©BEIESP
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Abstract: The non-traditional vortex tube based cooling device consisting of non-moving elements so one can create hot-air and cold-air from supply of compressed air lack on influencing on environment. At this point, the greater high air-pressure is infused digressively into chamber with a high grade vortex float can be made so one can be separate into two air streams, one as cold circulate and another as warm circulation. In the 2 stage hot cascade vortex tube, hot output of first vortex tube was associated with contribution of second vortex tube. In this study, the appearance of two-stage cascade hot vortex tube, with the length of diameter-ratio (L/D) of 10 and 15 with different pressures 8, 9, 10, 11, and 12 bars, on the basis of CFD results were investigated. The temperature deviation in between the hot inlet and outlet (ΔThot), cold outlet and the inlet (ΔTcold) were investigated by using CFD software data. It was found that high temperature difference between the hot outlet and the inlet (ΔThot), cold outlet and the inlet (ΔTcold) were obtained at L/D ratio 10 and pressure of inlet air was 12 bars.
Keywords: CFD; Hot Cascade Vortex Tube; L/D Ratio; Temperature.
Scope of the Article: Fluid Mechanics