In the liquid desiccant air conditioning system

the dehumidifier is a core component of the system. An experimental platform is built to be used for the dehumidifier performance test in the liquid desiccant air conditioning system. The measuring points are arranged in the dehumidification tower with LiCl solution as the desiccant

where the diameter of is 300 mm

and packing height is 800 mm. A heat and mass transfer model for the dehumidifier is established based on the Mercel theory

the heat and mass balance and the effective model of D. I. Stevens. The influence of various parameters on the performance of dehumidifier is analyzed from both experimental and theoretical results. The results show that the simulation results are in good agreement with the experimental ones

which shows that the model has good adaptability and can be used to simulate the performance of the dehumidifier. After analyzing the experimental and theoretical results

it can be seen that the inlet solution temperature

concentration and mass flux have greater impact on the dehumidification in the range of experimental conditions. The lower the inlet temperature of the solution

the better dehumidification effect of the desiccant; the lower the concentration of the solution

the better effect of removing moisture. And the inlet mass flux of the solution must be controlled in a certain range so that the performance of the dehumidifier can be improved. The air inlet velocity

dry bulb temperature and moisture content have little effect on the outlet air condition of the dehumidifier.