To solve the questions of the middle heat exchanger of space-based laser cooling system such as large heat transfer area and operating mode instability, a MC-MG (Microchannel-Microgroove) microscale heat exchanger is proposed and experimental study is carried out. The experimental results indicate that as the Reynolds number increases, the Nusselt number originally increases and then keeps constant. While adding the volumetric flow rate of distilled water in the microchannels, the total thermal resistance is first reduced and then becomes steady. With increasing the volumetric flow rate of distilled water, the total quantity of heat transfer increases first, then decreases and finally tends to be constant. The average heat transfer coefficient of the heat exchanger reaches to 1.6 × 104W/ (m2-K) and total thermal resistance is less than 0.21K/W. Therefore the solution to cooling laser with the heat exchanger is preferable.
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ASME 2007 5th International Conference on Nanochannels, Microchannels, and Minichannels
June 18–20, 2007
Puebla, Mexico
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4272-X
PROCEEDINGS PAPER
Experimental Study on Flow and Heat Transfer Characteristics in a Microscale Heat Exchanger
Tao Wang,
Tao Wang
Chinese Academy of Sciences, Beijing, China
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Xuegong Hu,
Xuegong Hu
Chinese Academy of Sciences, Beijing, China
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Dawei Tang
Dawei Tang
Chinese Academy of Sciences, Beijing, China
Search for other works by this author on:
Tao Wang
Chinese Academy of Sciences, Beijing, China
Xuegong Hu
Chinese Academy of Sciences, Beijing, China
Dawei Tang
Chinese Academy of Sciences, Beijing, China
Paper No:
ICNMM2007-30065, pp. 639-644; 6 pages
Published Online:
May 28, 2009
Citation
Wang, T, Hu, X, & Tang, D. "Experimental Study on Flow and Heat Transfer Characteristics in a Microscale Heat Exchanger." Proceedings of the ASME 2007 5th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 5th International Conference on Nanochannels, Microchannels, and Minichannels. Puebla, Mexico. June 18–20, 2007. pp. 639-644. ASME. https://doi.org/10.1115/ICNMM2007-30065
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