Annals of the Assembly for International Heat Transfer Conference 13

ISBN 1-56700-225-0 / CD 1-56700-226-9

Year 2006

Y. T. Wu
Beijing University of Technology, Beijing, China

Y. Ding
Beijing University of Technology, Beijing, China

Y. B. Ji
Beijing University of Technology, Beijing, China

Dr. Chong-Fang Ma
College of Environmental & Energy Engineering, Beijing University of Technology Beijing 100082, China

M. C. Ge
Institute of Engineering Thermophysics, Chinese Academy of Science, Beijing, China

Vortex tube is a simple energy separating device which is compact, simple to produce and to operate. Although intensive research has been carried out in many countries over the years, the mechanism producing the temperature separation phenomenon as a gas or vapor passes through a Ranque-Hilsch vortex tube is not yet fully understood. Numerical simulation of 3D compressible turbulent flow was made using FLUENT software. The temperature distribution in vortex chamber was obtained by numerical simulation and a new explain of vortex tube energy separation mechanism was proposed. A new nozzle with equal gradient of Mach number and a new intake flow passage of nozzles with equal flow velocity were designed and developed to reduce the flow loss. A new kind of rectifier invented by us was installed at the end of the outlet of vortex tube, used for reducing friction loss of air flow energy, which can greatly improve the performance of vortex tube. The experiment results indicated that these modifications can remarkably improve the performance of vortex tube. The developed vortex tube made by us is not only superior to the conventional vortex tube but also is superior to that made in the United States of the same type under big cold mass flow ratio.

ENR-02 pages DOI: 10.1615/IHTC13.p24.20 Download article

Article price - $35.00

<< Previous article   Next article >>