2231-3915 (Online)
2231-3907 (Print)

Author(s): Snehal Bharat Bhote, K D Devade

Email(s): ,

DOI: 10.5958/2231-3915.2018.00010.X   

Address: Snehal Bharat Bhote, Prof. K D Devade
Department of Mechanical Engineering, Indira College of Engineering and Management, Pune, India
*Corresponding Author

Published In:   Volume - 8,      Issue - 2,     Year - 2018

The vortex tube is a device used for generation of cold and hot air streams from compressed air. This simple device is very efficient in theseparation of air streams into two different temperatures streams. Cold air coming out of vortex tube can be used for air conditioning and refrigeration purpose. The coefficient of performance (COP) and outlet cold air temperature difference (?TC) of vortex tube are considerably influenced by its thermophysical and geometrical parameters. The present study deals with the experimental investigation on the effect of 2, 4 and 6nozzle number on COP and ?TC of thevortex tube. Vortex tube with length to diameter ratio (L/D) 15’0°, 15’4°, 16’4°, 17’4° and 18’4° where 0° and 4° are diverging angles, cold end orifice diameter(do) 5, 6 and 7mm and valve angle (O) 30°, 45°, 60°, 75° and 90° have been experimented with inlet pressure (Pi) 2, 3, 4, 5 and 6 bar. The effect of nozzle number on COP and ?TC for acold mass fraction (CMF) varying from 0 to 1 was studied and the validation of experimented and simulated value of COP and ?TC for pressure varying from 2 bar to 6 bar was done.The experimental results are validated with simulation results. Experimental result indicates that COP increases with increase in inlet pressure but decreases as a number of nozzle increases.The simulation result holds true with anexperimental result where the value of COP decreases with increase in CMF value and ?TCdecreases with increase in CMF. The best result was achieved for2 nozzle numberwhere it produces maximum 0.1237 COP for CMF = 1 and maximum ?TC about 20.3794 at CMF = 1. The best COP experimentalandCOPsimulationwere achieved for 2 nozzle number as0.136668811 and 0.062378066 respectively at 6 bar inlet pressure.Also, the best ?TCvalue of experimental and simulation was achieved at 6 bar pressure as 7.2 and 11.80075 respectively.

Cite this article:
Snehal Bharat Bhote, K D Devade. Investigations on Thermal Performance of Multi-Nozzle Ranque-Hilsch Vortex Tube. Int. J. Tech. 2018; 8(2): 65-78. doi: 10.5958/2231-3915.2018.00010.X

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DOI: 10.5958/2231-3915 

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