Ranque-Hilsch Vortex Tube and its usage in cooling system – A Review

Mohammed Hameeduddin Haqqani, Md Azizuddin


The vortex tube, also known as the Ranque-Hilsch vortex tube (RHVT), is a mechanical device that separates a compressed air into hot and cold streams flowing in vortex motion/tangentially into the vortex chamber through inlet nozzles. This instrument has no moving parts, does not break or wear and therefore requires little maintenance. The vortex tube is well suited for different applications because it is simple, light, quite, compact and does not use Freon or other refrigerants (HFCs or CFCs). Though the vortex tube is simple in structure, the internal mechanism of air flow and energy transfer is very complex. A series of theories has been presented by researchers regarding the energy flow inside the vortex tube. This paper after a brief introduction and literature survey, focuses on the design criteria, applications of RHVT and the results obtained up to now. One of the objective of this paper is to highlight the application of this device and the usage in the industry, rough estimates of temperature that are achieved and which be used in particle applications. The review will conclude with comments on future directions that this device can be used and can be applied for further study and investigation.

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