换热器管束间添加叶片的数值分析与结构优化  

NUMERICAL ANALYSIS AND STRUCTURAL OPTIMIZATION OF SHELL-AND-TUBE EXCHANGERS USING A SPECIAL VANE-TYPE SPOILER

作　　者：贾晖[1] 刘伟[1] 刘志春[1] 范爱武[1] 

机构地区：[1]华中科技大学能源与动力工程学院,湖北武汉430074

出　　处：《工程热物理学报》2010年第9期1547-1550,共4页Journal of Engineering Thermophysics

基　　金：国家重点基础研究发展计划(No.2007CB206903);国家自然科学基金资助项目(No.50721005)

摘　　要：根据核心流强化原理,提出了一种新型的扰流叶片换热器,对其进行了传热和流动特性的数值分析,并作出了一定的结构优化。结果表明,在Re数为3000～21000的范围内,该换热器相比折流杆换热器PEC可提高20%～50%。Based on the theory of heat transfer enhancement in the core flow, a kind of heat exchanger with vane-type spoiler was presented and the fluid flow and heat transfer characteristics were numerically analyzed in this paper. Furthermore the structural optimization was analyzed. The simulation results showed that when Re number is in the scope of 3000-21000, the PEC value will improve 20%-50% compared with rod baffle heat exchanger.

关 键 词：核心流 扰流叶片 折流杆 

分 类 号：TK124[动力工程及工程热物理—工程热物理]