本文对金属泡沫部分填充的水平管内R134a流动沸腾换热进行了实验研究,研究了质量流速、蒸汽干度和操作压力对压降和换热系数的影响,并将实验数据与传统的光管进行了对比。结果发现,与低质量流速的情况相比,由于在不同质量流速下管内流型不同,导致高质量流速下增加干度更能增强换热,并通过壁面温度分布对沸腾换热流型进行预测。 In this paper, the flow boiling heat transfer of R134a in horizontal tube partially filled with metal foam was studied. The effects of mass flow rate, steam dryness and operating pressure on pressure drop and heat transfer coefficient were studied. The experimental data were compared with the traditional light tube Contrast. The results show that, compared with the case of low mass flow rate, the increase of dry mass under high mass flow rate can enhance the heat transfer because of the different flow pattern in the tube, and the boiling heat transfer flow pattern is predicted by the wall temperature distribution .