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ISSN Online: 2688-7231

ISBN Online: 978-1-56700-524-0

Proceedings of the 26thNational and 4th International ISHMT-ASTFE Heat and Mass Transfer Conference December 17-20, 2021, IIT Madras, Chennai-600036, Tamil Nadu, India
December, 17-20, 2021, IIT Madras, Chennai, India

A NUMERICAL ANALYSIS on the INFLUENCE of VARIOUS WORKING FLUIDS over the THERMAL PERFORMANCE of the VORTEX TUBE

Get access (open in a dialog) DOI: 10.1615/IHMTC-2021.2300
pages 1527-1533

摘要

Ranque-Hilsch vortex tube (RHVT) is a device which discrete the cold and hot stream of an injected compressed fluid through an inlet nozzle. It is an eco-friendly device as no chemical or refrigerant has been used to produce a cooling effect. The vortex tube is small in size and easy to operate. In this work different gases for various cold mass, fractions has been examined using CFD (Computational fluid dynamics). A 3D (three-dimensional) computational domain has been generated with four inlet nozzle and two outlets (cold and hot). To evaluate the flow physics and predict the separation of temperature inside the tube, standard k-ε turbulence model was selected to predict the temperature values. The temperature separation effect and flow physics for air, carbon-di-oxide (CO2), and nitrogen (N2) at 4 bar has been studied. The outcomes of the present work are also validated with the previous experimental results for work authentication. Cold mass fraction and cooling power separation are significant factors to analyse the thermal performance of the RHVT. These parameters effect the temperature separation inside the tube and affect the performance. The core aim of the work is to study the influence of various working fluids on the performance of the vortex tube. It is found that nitrogen generates high-temperature separation and co2 produces less temperature separation as compared to air.