Numerical Study of the overall Tube Bundle Flow Resistance in a Horizontal Tube Falling-film Evaporator

摘要：

The computational fluid dynamic (CFD) method was employed for the numerical simulation of flow resistance of tube bundle in a horizontal tube falling-film evaporator. Using the method of combining porous medium model with empirical formula to analysis pressure distribution in large tube bundle evaporator and figure out factors of pressure drop , such as outlet position in evaporator chamber and free-flowing area (FFA) in size. The results show that outlet position impacts on pressure drop significantly, when side-opening, the best interest choice is middle-out. The width of FFA influences on flow resistance force obviously; however, the height of FFA has little effect on flow resistance force.

关键词： Falling-film evaporator porous medium tube bundle resistance force

作者: S. Q. Shen H. Liu Y. Feng LY.Gong S. Chen S. Guo

作者单位: Key Laboratory for Sea Water Desalination of Liaoning Province, Dalian University of Technology, Dalian 116024, 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: 176-184

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）