螺旋折流片强化壳侧传热研究  

Research on heat transfer enhancement at shell-side ofcoil-strip-baffle heat exchanger

作　　者：梅娜[1] 陈亚平[1] 

机构地区：[1]东南大学动力工程系,江苏南京210096

出　　处：《石油化工设备》2004年第5期1-4,共4页Petro-Chemical Equipment

基　　金：国家自然科学基金资助项目 (5 0 176 0 0 8)

摘　　要：从涡旋流动强化传热的机理出发 ,提出了强化换热器壳侧传热的新方案———螺旋折流片式换热器。利用FLUENT流体计算软件对同心套管螺旋片式换热段的壳侧流场、温度场进行了数值模拟 ,讨论了螺旋片结构对其强化传热性能的影响 ,计算结果显示 ,该方案具有良好的应用前景。A novel scheme of coil-strip-baffle used for heat transfer enhancement in the shell side of tubular heat exchanger is presented in account for the mechanism of heat transfer enhancement by vortex flow. The velocity and temperature profiles in a coil-strip-baffled concentric channel are simulated using FLUENT software.Also the effect of the structure of the coil-strip-baffle on its performance is discussed.The results show this new scheme may have promising application consequences.

关 键 词：管壳式换热器 强化传热 螺旋折流片 涡旋流动 计算流体力学 

分 类 号：TK172[动力工程及工程热物理—热能工程]