Numerical Simulation of Heat-Transfer of Falling Film Evaporator in Vertical Wavy Tube

摘要：

　　Computational fluid dynamics (CFD) simulations are conducted using the volume-of-fluid (VOF) method to investigate the heat transfer property of falling liquid film evaporator in vertical wavy tube.The individual heat transfer coefficient of liquid film in wavy tube is calculated with different operating conditions and it is found that the individual heat transfer coefficient of liquid film is significantly affected by flow rate,evaporating temperature and liquid viscosity.The applicable liquid flow rate is between 0.038~0.16kg/s for falling film evaporator in wavy tube.The heat transfer of liquid film in wavy tube is enhanced in comparison with that in plain tube due to wavy disturbance.

关键词： wavy tube falling film evaporator heat transfer computational fluid dynamics

作者: Kun HUANG Lin FAN Lilan GAO Zhenyi LIU

作者单位: School of Mechanical Engineering, Tianjin University of Science & Technology, Tianjin, PR China Huatai ICS Integrated Container Service, Tianjin, PR China School of Mechanical Engineering, Tianjin University of Technology, Tianjin, PR China

会议类型: 国内会议

会议名称: 2010中国可再生能源科技发展大会

会议地点: 北京

会议语种:英文

页码: 65-69

在线出版日期: 2010-12-18（万方平台首次上网日期，不代表论文的发表时间）