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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。
In order to further optimize the physical structure of the flat tube fins and improve the condensing efficiency of the condenser of the air-cooled power plant, a snake-shaped flat tube condenser has been established. The three-dimensional physical model and mathematical model of steam turbine and straight finned flat tube condenser were calculated by using FLUENT software. The results show that there is a possibility of further optimizing the physical structure of the serpentine fin flat tube fin, and the straight finned flat tube has more superior condensing efficiency. The numerical results provide a scientific basis for the design and optimization of the direct air-cooled condenser.