分析了除湿系统中直接蒸发式表面冷却器在结霜工况下的换热特性，特别是结霜速度、结霜时间以及结霜时的换热计算。

This paper analyzes some heat-exchange characteristics of evaporator on the condition of frosting in the desiccation system, especially of frost velocity, frosting time and heat exchange calculation.

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本文从制冷系统热动力学的观点出发，在分布参数的基础上建立了蒸发器的实用性数学模型。

Based on distributed parameter, from the viewpoint of thermodynamics of refrigeration system, this paper develops a practicable mathematical model of an air-conditioning evaporator.

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实验结果表明，系统运行时的最大制冷(热)系数取决于系统的蒸发温度和气体冷却器出口温度。

Results from the experiment show that there exists a maximum coefficient of performance and it depends on the evaporation temperature and outlet temperature of the gas cooler.

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