摘要
对闭式冷却塔换热盘管进行数值计算是基于CFD(Computation Flow Dynamics)的两相流技术。本文采用DPM模型,通过给定管壁线形热流、换热盘管压降,对闭式冷却塔换热盘管进行FLUENT模拟,模拟与测试结果十分接近。最后进行了对比模拟,分别得出了喷淋水量、空气质量流量、空气干湿球温度对闭式冷却塔换热盘管换热性能的影响。
Numerical calculation of heat exchange coil units of closed cooling tower is based on the two-phase technology ofCFD（Computation FlowDynamics）. In this paper,the Fluent simulation is run for the heat exchange coil units of closed cooling tower,according to a given linear heat flux of tube wall and Pressure loss of heat exchanger coil units,byDPM model.The result of the simulation is approximate to that of the test.By comparing simulation,we work out the effects of the performance of heat exchange coil units of closed cooling tower,which is influenced by the flowrate of spray water,the air flowrate,the wet and dry bulb temperature.
