Liquid desiccant dehumidification systems are widely used in many industries to meet the needs for air-conditioning

in which the dehumidification tower attracts more attention.In this study

a model for the dehumidification tower

which is recognized by previous experiment

is employed and the corresponding VC++ computer program module is used to describe the heat and mass transfer processes between the liquid desiccant solution and moist air.The orthogonal design is used to arrange the numerical experiment.The results are analyzed by the method of variance analysis to determine the relative significance of operating parameters and the interactions between them.The analysis on the influence factors shows that for the humidity ratio of the outlet air from the dehumidification tower

the important parameters are the inlet temperature and concentration of the solution

the inlet humidity ratio of the air

the mass flow ratio of dry air to dehydrated desiccant

and the NTU.For the dehumidification efficiency

only the mass flow ratio of dry air to dehydrated desiccant and the NTU are important parameters.There is no interaction that influences the humidity ratio of the outlet air and the dehumidification efficiency significantly.