Effect of partition wall thickness on heat transfer characteristics of a two-stream counterflow gas-to-gas microchannel heat exchanger has been numerically investigated. The flow passages of the microchannel heat exchanger are plane channels of 100 μm in height and 20 mm in length. The partition wall thickness ranges from 20 μm to 200 μm. The material of the partition wall is assumed to be stainless steel. The numerical methodology is based on the Arbitrary-Lagrangian-Eulerian method. The computations were performed for a wide range of flow rate to investigate effect of partition wall thickness on heat transfer characteristics of the microchannel heat exchanger. The computational results are presented in form of temperature distributions, bulk temperatures, total temperatures, and heat flux variations along the channels. We have concluded that the partition wall thickness affects significantly heat transfer characteristics of a microchannel heat exchanger.
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ASME 2009 7th International Conference on Nanochannels, Microchannels, and Minichannels
June 22–24, 2009
Pohang, South Korea
Conference Sponsors:
- Nanotechnology Institute
ISBN:
978-0-7918-4349-9
PROCEEDINGS PAPER
Effect of Partition Wall Thickness on Heat Transfer Characteristics of a Gas-to-Gas Counterflow Microchannel Heat Exchanger
K. Koyama,
K. Koyama
Tokyo Metropolitan University, Tokyo, Japan
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C. Hong,
C. Hong
Tokyo University of Science, Chiba, Japan
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Y. Asako
Y. Asako
Tokyo Metropolitan University, Tokyo, Japan
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K. Koyama
Tokyo Metropolitan University, Tokyo, Japan
C. Hong
Tokyo University of Science, Chiba, Japan
Y. Asako
Tokyo Metropolitan University, Tokyo, Japan
Paper No:
ICNMM2009-82041, pp. 745-752; 8 pages
Published Online:
September 21, 2010
Citation
Koyama, K, Hong, C, & Asako, Y. "Effect of Partition Wall Thickness on Heat Transfer Characteristics of a Gas-to-Gas Counterflow Microchannel Heat Exchanger." Proceedings of the ASME 2009 7th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 2009 7th International Conference on Nanochannels, Microchannels and Minichannels. Pohang, South Korea. June 22–24, 2009. pp. 745-752. ASME. https://doi.org/10.1115/ICNMM2009-82041
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