板翅式全热交换器热回收效率分析

空调系统中已逐渐采用全热交换器以降低系统能耗．通过对不同运行条件下全热交换器的性能进行分析，计算了全热交换器运行特性与运行工况之间的关系，指出传热阻与传湿阻的构成差异和全热交换器显热与潜热交换过程的不同特征，并对处理风量、交换膜厚度和吸湿特性等主要因素对全热交换器能量回收效率的影响作用进行了分析和讨论．

Analysis of the Efficiency of a Flat Plate Heat Recovery Ventilator

More and more heat recovery ventilators are equipped in air-conditioning systems for reducing energy consumption in current days. The performances of a flat plate heat recovery ventilator under different operating conditions are investigated and discussed, and the relationship between performances and operating parameters of the ventilator are calculated. The result shows the differences between heat transfer resistance and moisture transfer resistance of the membrane, and the differences between the sensible heat transfer and latent heat transfer through the membrane are obtained and evaluated. The performances of the ventilator affected by some prime factors, such as the flow rate, the thickness of the membrane and absorption rate of moisture, are also analyzed and discussed.