关键词:

溶液除湿, 除湿塔, 正交设计, 方差分析, 参数分析

Abstract:

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.

Key words:

溶液除湿, 除湿塔, 正交设计, 方差分析, 参数分析