The gas-liquid flow distributions in multi-pass upward parallel channels that simulate the evaporator for the automobile air-conditioning system were examined experimentally. Attention was directed to the influences of the backpressure condition at the branch outlets and of the flow-inlet condition at the header entrance on the gas-liquid distributions to the branches. Experiments were conducted in an isothermal air-water flow system. The influence of the backpressure condition on the flow distributions changed depending on the flow-inlet condition. In the stratified-flow inlet, the backpressure condition was highly influential in both the air and water distributions, and the uniform water distribution that was ideal for the evaporators could not be achieved even if air was distributed uniformly to all branches. In the mist-flow inlet, the water distribution was insensitive to the backpressure conditions and its uniformity was improved in comparison with that in the stratified-flow inlet.
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2010 14th International Heat Transfer Conference
August 8–13, 2010
Washington, DC, USA
Conference Sponsors:
- Heat Transfer Division
ISBN:
978-0-7918-4938-5
PROCEEDINGS PAPER
Gas-Liquid Distributions in Upward Multi-Pass Channels of Compact Evaporator
Zuradzman Mohamad Razlan,
Zuradzman Mohamad Razlan
Mie University, Tsu, Mie, Japan
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Ryota Isobe,
Ryota Isobe
Chubu Electric Power, Omaezaki, Shizuoka, Japan
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Yasuhiro Mizuno,
Yasuhiro Mizuno
Denso Corporation, Kariya, Aichi, Japan
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Hiroaki Goshima,
Hiroaki Goshima
Mie University, Tsu, Mie, Japan
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Masafumi Hirota,
Masafumi Hirota
Mie University, Tsu, Mie, Japan
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Naoki Maruyama,
Naoki Maruyama
Mie University, Tsu, Mie, Japan
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Akira Nishimura
Akira Nishimura
Mie University, Tsu, Mie, Japan
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Zuradzman Mohamad Razlan
Mie University, Tsu, Mie, Japan
Ryota Isobe
Chubu Electric Power, Omaezaki, Shizuoka, Japan
Yasuhiro Mizuno
Denso Corporation, Kariya, Aichi, Japan
Hiroaki Goshima
Mie University, Tsu, Mie, Japan
Masafumi Hirota
Mie University, Tsu, Mie, Japan
Naoki Maruyama
Mie University, Tsu, Mie, Japan
Akira Nishimura
Mie University, Tsu, Mie, Japan
Paper No:
IHTC14-22588, pp. 913-921; 9 pages
Published Online:
March 1, 2011
Citation
Razlan, ZM, Isobe, R, Mizuno, Y, Goshima, H, Hirota, M, Maruyama, N, & Nishimura, A. "Gas-Liquid Distributions in Upward Multi-Pass Channels of Compact Evaporator." Proceedings of the 2010 14th International Heat Transfer Conference. 2010 14th International Heat Transfer Conference, Volume 3. Washington, DC, USA. August 8–13, 2010. pp. 913-921. ASME. https://doi.org/10.1115/IHTC14-22588
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