空冷凝汽器翅片管的数值研究  

Numerical investigation on direct-cooled condenser tube fins

作　　者：张树国[1] 赵兴楼[1] 张艳娟[1] 

机构地区：[1]华北电力大学,河北保定071003

出　　处：《华东电力》2009年第2期284-286,共3页East China Electric Power

基　　金：华北电力大学博士科研基金项目(93102502)

摘　　要：蛇形扁平管凝汽器在空冷电站的应用上取得了很好的效果,为进一步优化扁平管翅片的物理结构,提高空冷电站凝汽器的冷凝效率,建立了蛇形翅片扁平管凝汽器及直翅片扁平管凝汽器的三维物理模型和数学模型,利用FLUENT软件进行数值计算。进行对流换热系数、流动损失、散热量的对比分析,结果表明:蛇形翅片扁平管翅片的物理结构存在进一步优化空间的可能性,直翅片扁平管具有更优越的冷凝效率。数值计算结果为直接空冷凝汽器的设计和优化改造提供了科学依据。The wave fin flat cube condenser is well applied in air-cooled power plants. To optimize the physical structure of the fiat tube fin and further improve the efficiency of the direct-cooled condenser, the 3D physics-mathematics models were built for the wave fin flat tube condenser and the straight fin fiat tube condenser, and numerical analysis was performed by employing the Fluent solver. Through comparison in the aspects of convection heat transfer, flow loss, and dissipation of heat, it showed that the structure of the wave fin fiat tube should be further optimized and the straight fin flat tube was more efficient in condensation.

关 键 词：扁平管 蛇形翅片 直翅片 数值模拟 

分 类 号：TK264.11[动力工程及工程热物理—动力机械及工程]