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Separation of Air From Two-Phase Air-Water Mixture Flowing in a Mini Channel

[+] Author Affiliations
Akira Kariyasaki, Yoshikazu Yamasaki, Shigeharu Morooka

Fukuoka University, Fukuoka, Japan

Tohru Fukano

Kurume Institute of Technology, Kurume, Japan

Akiharu Ousaka

University of Tokushima, Tokushima, Japan

Paper No. ICMM2005-75057, pp. 585-589; 5 pages
  • ASME 3rd International Conference on Microchannels and Minichannels
  • ASME 3rd International Conference on Microchannels and Minichannels, Parts A and B
  • Toronto, Ontario, Canada, June 13–15, 2005
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4185-5 | eISBN: 0-7918-3758-0
  • Copyright © 2005 by ASME


An air-water separator which uses the centrifugal force as a driving force was developed and tested for micro scale flow systems. The device is composed of a main-channel of return bend, a sub-channel running along the main-channel, and several connecting-channels which connect the main- and the sub-channel. When two-phase mixture flows through the curved main-channel, water drifts towards outside region of the curvature and partly into the sub-channel. Consequently air holdup in main-channel becomes large at its exit. The performance of the device was evaluated numerically and experimentally by means of water recovery, air recovery, and Newton efficiency.

Copyright © 2005 by ASME



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