逆流式露点间接蒸发空冷器热工性能的数值模拟研究

摘要

逆流式间接蒸发空调方式(CFIEACP)是基于蒸发冷却机理提出的,在此基础上建立了相应的逆流式露点间接蒸发空冷器(CFDIEAC)的热质交换模型,并通过热力学仿真加以验证.结果表明,该 CFDIEAC在理论上是可行的.它适用于空调夏季工况,能够将送风温度处理至接近露点温度.此外,还分析了CFDIEAC的关键结构和运行参数变化,对其热工性能,如送风温度、湿球效率和露点效率的影响.%Counter Flow Indirect Evaporative Air-conditioning Pattern (CFIEACP) has been proposed based on the mechanism of evaporative cooling.On this basis,the heat and mass exchange model of corresponding Counter Flow Dew-point Indirect Evaporative Air Cooler (CFDIEAC) was built.Results showed that the CFDIEAC was feasible in theory.It was suitable for air conditioning in summer conditions,and the air supply temperature can be processed to close to the dew point temperature.In addition,the influence on the thermal performance such as air supply temperature,wet bulb efficiency and dew point efficiency were analyzed due to the changes of the key structure and operating parameters of CFDIEAC.