结霜工况下直接蒸发式空气冷却器的计算机辅助设计

The CAD of Air Coolers under Forsting Conditions

考虑了翅片表面结霜随时间增长及其对传热和空气流动阻力的影响,把风机性能曲线(P—Q关系)编入计算程序,介绍了一种结霜工况下设计蒸发式空气冷却器的方法,计算结果表明,该方法计算精度高,速度快,对多方案选择尤为重要。

In this paper, a method for designing evaporators under frosting conditions is presented which have taken into account the frost growth on the surfaces and its effects on the flow rate of the fan and on the performance of evaporators. The conclusions from this investigation are especially essential for heat pamp design, in which frost is often formed on the evaporators surfaces.