Study on the Performance of Heat and Mass Transfer of Cross Flow Dehumidifier in an Industrial Plant

Abstract

Liquid desiccant air conditioning (LDAC) system has been more and more widely used in some commercial and industrial buildings which require a relative lower humidity ratio of supply air. This paper mainly focuses on the investigation of the dehumidification performance of a cross-flow dehumidifier for an industrial plant. The theoretical model of the cross-flow dehumidifier is established based on the energy and mass conservation. The numerical solutions are obtained according to the finite difference method within the MATLAB environment. The influences of the different operation parameters and the dehumidifier geometric size on the dehumidification performance are analyzed and discussed for various operation conditions. The results show that the solution mass concentration has the most critical effect on the dehumidification performance, follows by the solution mass flow rate and air mass flow rate. The air temperature has little influence on the performance.