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分析了吸湿剂与空气直接接触的热湿传递过程,得到了溶液与空气热湿传递过程中传热、传湿阻力表达式,比较了溶液-空气不同进口状态的传热、传湿不匹配系数。在溶液进口状态等浓度线上进行的热湿传递过程传热、传湿不匹配系数最小,而等焓线上发生的过程的传热、传湿不匹配系数较大。在构建溶液与空气的热湿处理流程中,应尽可能使除湿与再生过程贴近溶液等浓度线进行。固体吸湿剂与溶液之间的性质差异使得固体吸湿剂与空气间的热湿传递过程一般沿着等焓线发生。
The heat and moisture transfer process of the hygroscopic agent in direct contact with air was analyzed. The expressions of heat transfer and moisture transfer resistance in the process of heat and moisture transfer between air and solution were obtained. The heat transfer and moisture mismatch coefficient . Heat transfer in the process of heat and moisture transfer at the concentration line such as the solution inlet state has the smallest mismatch coefficient of moisture transfer and the coefficient of heat transfer and moisture transfer mismatch in the process of isenthalpic line is larger. In the construction of solution and air heat and humidity process, as far as possible so that the dehumidification and regeneration process close to the solution concentration line. The difference in properties between the solid hygroscopic solution and the solution allows the heat and moisture transfer between the solid hygroscopic agent and the air to occur generally along the isentropic curve.