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通过建立的数学仿真模型,对冷风机的运行性能进行了仿真模拟。得到了冷风机结构参数(管间距、翅片间距和翅片厚度)对其性能的影响:随着冷风机翅片间距的增大,传热系数增大,相反的制冷量减小;随着管间距的逐渐增大,传热系数减小,相反的制冷量增大;随着翅片厚度的增大,传热系数和制冷量均呈现增大的趋势,但随着翅片厚度的持续增大,制冷量的变化梯度逐渐变小。管间距和翅片间距对冷风机性能会产生很大的影响。
Through the established mathematical simulation model, the running performance of the chiller is simulated. The effect of structure parameters (tube spacing, fin spacing and fin thickness) on the performance of the chiller is obtained. The heat transfer coefficient increases as the chiller fins spacing increases, while the cooling capacity on the contrary decreases. With the increasing of the thickness of the fin, the heat transfer coefficient and the cooling capacity all showed an increasing trend. However, as the thickness of the fin continued Increase, the cooling gradient changes gradually become smaller. Tube spacing and fin pitch on the chiller performance will have a great impact.