利用联动滚筒布水的蒸发冷却器性能模拟

Performance Simulation of Evaporative Cooler Using Linked Drum Distributing Water

设计一种联动滚筒式蒸发冷却器,利用包覆纤维材料的多级联动滚筒将蓄水盒内的水从最下层滚筒传递到最上层滚筒,可在纤维材料表面形成均匀连续的水膜。采用模拟方法,在进口空气参数一定的条件下,模拟蒸发冷却通道内空气速度场、压力场、温度场。对影响因素(进口空气流速、进口空气干球温度、进口空气相对湿度、冷却通道结构)对蒸发冷却通道出口空气温降和空气压力降、蒸发冷却器湿球温度效率的影响进行分析。

A linkage drum type evaporative cooler is designed.The multi-stage linkage drum covered with fiber material is used to transfer the water in the water storage box from the lowermost drum to the uppermost drum,which can form a uniform and continuous water film on the surface of the fiber material.Using the simulation method,under the condition of certain inlet air parameters,the air velocity field,pressure field and.temperature field in the evaporative cooling channel are simulated.The influence of factors(inlet air velocity,inlet air dry bulb temperature,inlet air relative humidity and cooling channel structure)on the outlet air temperature drop and air pressure drop of the evaporative cooling channel,the wet bulb temperature efficiency of the evaporative cooler are analyzed.