An internally-cooled plate membrane liquid desiccant air dehumidification system has been adopted for air dehumidification due to its excellent ability of removing moisture. In this study, a dynamic model for the novel system is built up by coupling the model of each component. Based on the experimental data and the steady-state model, the dynamic model is validated to prove its accuracy. The transient performances of the system in a typical summer day are investigated. It is found that the operation process of the system during the daytime includes the start-up period and the stable running period. Owing to the rapid change of system parameters, the performances of the system during the start-up period are studied in detail. The results show that the temperatures of the solution in the solution tanks vary rapidly after starting up because of the low thermal inertia. Increasing cooling water flow rate or reducing cooling water temperature can improve the SDP of the system. The initial solution concentration and the volume of solution in the tank have a great effect on the start-up time, while the initial solution temperature has little influences.

空气除湿采用内冷板膜液体干燥剂空气除湿系统，具有优异的除湿能力。在这项研究中，通过耦合每个组件的模型来建立新系统的动态模型。基于实验数据和稳态模型，对动态模型进行了验证，证明了其准确性。研究了系统在典型夏日的瞬态性能。发现系统在白天的运行过程包括启动期和稳定运行期。由于系统参数的快速变化，详细研究了系统在启动期间的性能。结果表明，由于热惯性低，溶液罐中溶液的温度在启动后变化很快。增加冷却水流量或降低冷却水温度可以提高系统的SDP。初始溶液浓度和槽内溶液体积对启动时间影响很大，而初始溶液温度影响不大。