湿空气在肋片表冷器上的传热传质及肋片效率

Heat and mass transfer of moist air on a finned air cooler and fin efficiency

分析了肋片式表冷器在湿工况下的传热传质过程 ,认为表冷器对空气进行冷却减湿过程中不遵循路易斯关系式 ,推导出在湿工况下的冷却能力及肋片效率 ,计算表明当肋表面出现凝结时 。

Analyses the heat and mass transfer process on the surface of a finned air cooler in wet cooling conditions. Considers that the process that wet air is cooled and dehumidified on the surface of a finned air cooler does not abide by Lewis analogy. Deduces the cooling capability and fin efficiency in wet cooling conditions. Calculating results show that moisture condensation on the fin surface can enhance cooling capability and efficiency.