利用蒸发式冷凝器再生除湿溶液时传质系数的实验研究

摘要

Establishing the test table of an evaporative condenser with liquid desiccant regeneration system. Using condensation heat to regenerate the LiCl solution, tests the main factors influencing the mass transfer coefficient between the air and the liquid desiccant. Based on the adequate experiment data, analyses the influence of mass velocity of liquid desiccant and face air velocity on the mass transfer coefficient between the air and the fluid film, and acquires empirical formulas of the mass transfer coefficient through regression, providing theoretical basis for the regeneration of liquid desiccant using low-grade heat.%建立了溶液再生式蒸发冷凝器实验台,利用冷凝热再生氯化锂除湿溶液,对影响空气与除湿溶液之间传质系数的主要因素进行了实验测试.在大量实验数据基础上,分析了除湿溶液质量流速及空气迎面风速对空气与液膜之间传质系数的影响,并回归得到了传质系数的经验公式,为利用低品位热源再生除湿溶液提供理论依据.