A STUDY ON TEMPERATURE SEPARATION IN THE VORTEX TUBE

摘要：

This paper reports that increasing the number of inlet nozzles in both insulated and non-insulated vortex tubes affects the temperature distribution and causes temperature reduction in the counter flow vortex tube. From experiments with vortex tubes of 16 mm diameter and cold orifice diameter of 0.5D, we found the maximum temperature reductions at the core for 1,2 and 4 inlet nozzles respectively to be –16℃, –29℃ and –30℃. In addition, the cold air temperature drop from employing the snail is higher than those from employing the tangential inlet with 1, 2, and 4 nozzles at the same inlet pressure. For applying the snail to the vortex tube, the maximum cold air temperature reduction and the isentropic efficiency are found to be 33℃ and 36％, respectively. Applying dimensional analysis and similarity geometry yielded an empirical correlation for use in designing vortex tubes for optimal performance.

关键词： Vortex tube Ranque-Hilsch vortex tube Vortex flow Swirl flow and Temperature separation

作者: Y.Kaewkaokiet S.Eiamsa-ard M.Pimsarn P.Promvonge

作者单位: Department of Mechanical Engineering, Faculty of Engineering,Mahanakorn University of Technology,Ban Department of Mechanical Engineering, Faculty of Engineering,King Mongkut’s Institute of Technology

会议类型: 国际会议

会议名称: The 22nd International Congress of Refrigeration(第22届国际制冷大会)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-21（万方平台首次上网日期，不代表论文的发表时间）