本文报道了公称直径为9.52mm的微管道的单相传热和压降特性。实验在以水为工质的双管换热器中进行。测试了两个市售microfin管和一个光滑管。传热系数采用威尔逊图法计算。结果发现，微纤管具有粗糙管的特性。在中低雷诺数范围内（Re小于15000），粗糙度雷诺数处于过渡范围内（e+小于23）。因此，Dittus- Boelter型Wilson图函数无法关联该范围内的传热。结果发现，通过使用热动量类比，现有微尺度传热数据的相关性更好。关键词:1995年，热流，换热器，双管换热器，翅片管，压降，性能，实验，水，测试，传热系数，摩擦系数:研讨会，ASHRAE Trans。1995年，第101卷，第2部分

Single-phase heat transfer as well as pressure drop characteristics for microfin tubes with a nominal diameter of 9.52mm are reported. Experiments were conducted in a double-pipe heat exchanger with water as the working medium. Two commercially available microfin tubes and a smooth tube were tested. The heat transfer coefficients were obtained using the Wilson plot technique. It was found that the microfin tube exhibits a rough tube's characteristics. In the low and medium Reynolds number range (Re less than 15,000), the roughness Reynolds number lies in the transition range (e+ less than 23). As a result, the Dittus-Boelter-type Wilson plot function cannot correlate the heat transfer in this range. It was found that by using a heat momentum analogy, a better correlation of the present microfin heat transfer data is achieved.KEYWORDS: year 1995, heat flow, heat exchangers, double pipe heat exchangers, finned tubes, pressure drop, properties, experiment, water, testing, heat transfer coefficient, friction factor