淡江大學機構典藏:Item 987654321/65282
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    题名: Analysis of effectiveness and pressure drop in micro cross-flow heat exchanger
    作者: Kang, Shung-Wen;Tseng, Shin-Chau
    贡献者: 淡江大學機械與機電工程學系
    关键词: Effectiveness;Pressure drop;Heat transfer rate;Micro heat exchanger
    日期: 2007-04
    上传时间: 2013-05-31 11:43:07 (UTC+8)
    出版者: Kidlington: Pergamon
    摘要: A theoretical model that predicts the thermal and fluidic characteristics of a micro cross-flow heat exchanger is developed in this study. The theoretical model is validated by comparing the theoretical solutions with the experimental data from the relative literature. This model describes the interactive effect between the effectiveness and pressure drop in the micro heat exchanger. The analytical results show that the average temperature of the hot and cold side flow significantly affects the heat transfer rate and the pressure drop at the same effectiveness. Different effectiveness has a great influence upon the heat transfer rate and pressure drop. When the micro heat exchanger material is changed from silicon to copper, the thermal conductivity changes from 148 to 400 W/m K. The heat exchanger efficiency is also similar. Therefore, the (1 1 0) orientation silicon based micro heat exchanger made using the MEMS fabrication process is feasible and efficient. Furthermore, the dimensions effect has a great influence upon the relationship between the heat transfer rate and pressure drop. Therefore, the methodology presented in this paper can be used to design a micro cross-flow heat exchanger.
    關聯: Applied Thermal Engineering 27(5-6), pp.877-885
    DOI: 10.1016/j.applthermaleng.2006.09.002
    显示于类别:[機械與機電工程學系暨研究所] 期刊論文

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