Research on moisture absorption capacity of falling film landscape dehumidification system with different solutions

Analyses the moisture transmission mechanism of the falling film dehumidification. Establishes the physical and mathematical models of the falling film dehumidification using the inter-phase equilibrium and double film mass transfer theory. Obtains the calculation formula of moisture absorption capacity. Establishes a steady-state dehumidification experimental test table for the falling film landscape dehumidification system. After preparation of CaCl2 and LiCl saturated solutions, conducts the steady-state variable working condition dehumidifying experiments. Compares the moisture absorption capacity for CaCl2 and LiCl solutions between theory and experiment under the steady-state working condition. The result shows that the theoretical model formula has relative high calculation accuracy for calculation of the moisture absorption capacity in the falling film dehumidification system under the certain air temperature and relative humidity, when CaCl2 and LiCl solutions are used. It can be applied to related theoretical calculation of similar falling film dehumidification system.