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Effects of Tube Materials and Cooling Media on the Energy Separation in Vortex Tubes  

Riu, Kap-Jong (School of Mechanical Engineering Kyungpook University)
Kim, Hyun-Woo (School of Mechanical Engineering Kyungpook University)
Park, In-Su (School of Mechanical Engineering Sangju University)
Kim, Byung-Ha (Department of Mechanical Engineering Kyungil University)
Publication Information
International Journal of Air-Conditioning and Refrigeration / v.10, no.3, 2002 , pp. 138-146 More about this Journal
Abstract
The phenomena of energy separation in vortex tubes was investigated experimentally to see the subsidiary effect of the conductivity of tube material and cooling conditions around the outer surface of the tube. The experiment was carried out with pyrex, stainless steel and copper tubes, and the heat transfer conditions of the tubes were with insulation, without in-sulation and water cooling modes respectively The results were obtained that the hot exit fluid temperature was highly affected by a change of conductivity of a tube when the outer surface was cooled by the water, while the working fluid through the tubes was air. How-ever, the cold exit temperature was little affected by the heat transfer modes on the outer surface of the vortex tube.
Keywords
Vortex tube; Energy separation; Tube conductivity; Cooling modes;
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