微肋管及强化微肋管换热和阻力实验研究

工程热物理学报 , 2007, 28(5): 817-819.

1.清华大学航天航空学院传热与能源利用北京市重点实验室,北京,100084

2.清华大学航天航空学院传热与能源利用北京市重点实验室,北京,100084

3.清华大学航天航空学院传热与能源利用北京市重点实验室,北京,100084

4.清华大学航天航空学院传热与能源利用北京市重点实验室,北京,100084

基金项目: 国家重点基础研究发展计划(973计划)(2007CB206901)

EXPERIMENTAL STUDY OF THE FLOW AND HEAT TRANSFER OF A MICRO-FIN AND AN ENHANCED MICRO-FIN TUBE

实验研究了微肋管在过渡区及湍流区的换热及阻力性能,并针对微肋管在过渡区的换热强化较差的特点改进其结构.实验结果表明,改进后的微肋管在2300＜Re＜10000时比原微肋管强化换热提高120%,阻力增加70%～120%.

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