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Study on Joule-Thomson Micro-Cooler

[+] Author Affiliations
K. Naganuma, Y. Takata, H. Kubota, K. Takahashi

Kyushu University, Fukuoka, Japan

Paper No. ICMM2004-2410, pp. 769-772; 4 pages
  • ASME 2004 2nd International Conference on Microchannels and Minichannels
  • ASME 2nd International Conference on Microchannels and Minichannels
  • Rochester, New York, USA, June 17–19, 2004
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4164-2
  • Copyright © 2004 by ASME


An experimental model of Joule-Thomson micro-cooler has been fabricated on silicone wafer of 39mm×15.5mm in size. The micro-cooler uses ethylene as the refrigerant and it works in the pressure range between 2.3MPa and 0.1MPa. The micro-cooler consist of condenser, evaporator and capillary tube. Flow passage of the refrigerant was fabricated by etching process. Peltier device was used to pre-cool and condense the refrigerant. Temperature decrease by 3K was obtained at maximum flow rate of 3mg/s.

Copyright © 2004 by ASME
Topics: Joules



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