Experimental investigation of Falling Film Evaporation Heat Transfer Coefficient on Horizontal tube

摘要：

The heat transfer process of falling film evaporation on horizontal tubes in distillation desalination plants can be divided into two parts, evaporation outside the tubes and condensation in the tubes. The heat transfer coefficient of the outside is about 50％ of that inside. So the overall heat transfer coefficient is influenced mainly by the falling film evaporation outside tubes. A research on experiments of falling film evaporation heat transfer outside horizontal tube is introduced in this paper Experiments were carried out to show how the heat transfer coefficient is affected by different parameters including heat flux density, circumference direction of tubes, spray density, evaporation temperature and experimental fluid. The results reveal that the heat transfer coefficient shows certain tendencies with the change of the parameters mentioned above. These results provide a basis for further developing high efficiency heat transfer processes and advanced evaporators.

关键词： Heat transfer coefficient Horizontal tubes falling film evaporation Desalination Spray density

作者: Xingsen Mu Shengqiang Shen Yong Yang Xiaohua Liu

作者单位: Key Laboratory for Desalination of Liaoning Province, Dalian University of Technology, Dalian 116024, Liaoning, China

会议类型: 国际会议

会议名称: The 7th International Conference on Fluid and Thermal Energy Conversion(第七届流动技术与热能转化国际会议 FTEC 2011)

会议地点: 郑州

会议语种:英文

页码: 216-224

在线出版日期: 2011-09-24（万方平台首次上网日期，不代表论文的发表时间）