铝扁管内R410A冷凝传热特性研究  

Research on heat transfer characteristics of R410A condensation in aluminum multiport tubes

作　　者：王旭 孙云峰[1] 甄琦 孙凯 闫彩霞[1] WANG Xu;SUN Yunfeng;ZHEN Qi;SUN Kai;YAN Caixia(College of Energy and Transportation Engineering,Inner Mongolia Agricultura lUniversity,Hohhot 010018,China)

机构地区：[1]内蒙古农业大学能源与交通工程学院,内蒙古呼和浩特010018

出　　处：《热科学与技术》2023年第5期446-452,共7页Journal of Thermal Science and Technology

摘　　要：为了探究制冷剂在多孔铝扁管内的冷凝传热特性,采用实验方法对R410A在多孔铝扁管内的冷凝传热和压降特性进行了研究。冷凝温度分别为47、40和30℃,单位截面质量流率在200~600 kg/(m^(2)·s)。给出了实验测试结果,并采用公开发表的学术文献中的模型与这些实验测试结果进行了对比。Müller-Steinhagen和Heck模型预测压降的精度最高,它预测93.3%测试点的偏差在±20%之内,预测100%测试点的偏差在±30%之内。Koyama等模型预测传热系数的精度最高,它预测93.3%测试点的偏差在±10%之内,预测100%测试点的偏差在±20%之内。This study aims to investigate the condensing heat transfer characteristics of refrigerant in aluminum multiport tubes.The condensing heat transfer and pressure drop characteristics of R410A in aluminum multiport tubes were experimentally studied.The condensing temperatures were 47,40 and 30 C respectively,and the mass flow rate was between 200 and 600 kg/(m^(2)·s),The experimental results were analyzed by existing models from the related literature.The Muller-Steinhagen and Heck model had the highest accuracy in predicting pressure drop,capturing 93.3%of the data points within a±20% deviation and all data points within ±30%.Meanwhile,the Koyama et al.model had the highest accuracy in predicting heat transfer coefficients,estimating 93.3%of the data points within a ±10%deviation and all data points within ±20%.

关 键 词：多孔铝扁管 冷凝传热 传热系数 压降 

分 类 号：TK124[动力工程及工程热物理—工程热物理]