To develop a comprehensive performance evaluation model of heat transfer tube, the flow condensation heat transfer experiment of R1234yf inside the tube was operated. In this article, the effect of mass flux, condensation temperature, and fin structural parameters on the heat transfer characteristics was studied, and then corrections of heat transfer coefficient and pressure drop predictive effect were checked. Results show that the heat transfer coefficient and pressure drop increase with increasing mass flux and condensation temperature, and the heat transfer enhanced ratio is 2.53∼3.67 while the pressure drop deterioration ratio was 1.95∼2.49 for the micro-fin tube; the Yu and Koyama correlation has a best predictive effect for the heat transfer coefficient with the average and mean deviation of 0.77% and 10.84%, and the Han et al. correction shows the best predictive effect for the pressure drop with the average and mean deviation of 1.82% and 6.23%. Finally, the heat transfer coefficient per unit pressure drop was selected as evaluation index of heat exchanger comprehensive performance, a model was developed based on the Yu and Koyama correlation, and it can predict the heat transfer coefficient per unit pressure drop with a mean absolute prediction error of −1.65%.

为了建立传热管的综合性能评估模型，对传热管内R1234yf的流动冷凝传热实验进行了研究。本文研究了质量通量，冷凝温度和翅片结构参数对传热特性的影响，然后对传热系数和压降预测效果进行了校正。结果表明，传热系数和压降随质量通量和冷凝温度的增加而增加，微翅片管的传热增强比为2.53〜3.67，压降劣化比为1.95〜2.49。Yu和Koyama的相关性对传热系数具有最佳的预测效果，其平均和平均偏差分别为0.77％和10.84％。校正显示出对压降的最佳预测效果，平均和平均偏差分别为1.82％和6.23％。最后，选择每单位压降的传热系数作为换热器综合性能的评价指标，并基于Yu和Koyama的相关性建立了模型，利用平均绝对预测值可以预测每单位压降的传热系数。误差为-1.65％。