Natural induced flow due to concentration gradient in a liquid desiccant air dehumidifier

作者：Fazilati Mohammad Ali^*; Sedaghat Ahmad; Alemrajabi Ali Akbar

来源：Applied Thermal Engineering, 2016, 105: 105-117.

DOI：10.1016/j.applthermaleng.2016.05.135

• Dehumidifier
• Humidifier
• Liquid desiccant
• Mass transfer
• Natural circulation loop
• Zero parasitic pump power

Natural heat and mass transfer can be achieved simultaneously in a stratified medium. In this study, the natural induced flow due to change of concentration of a desiccant liquid in a closed circulation loop is experimentally investigated. The proposed novel system is a liquid desiccant dehumidifier which consists of two modules: the absorber and the generator, in which no parasitic pump energy is required. The experimental system consists of a closed loop equipped with hollow fiber membranes across which water vapor can be passed. The circulating fluid, lithium chloride, is used as the water vapor absorber while the cooling/heating fluid of the loop is cold/hot water. The preliminary results of the system operations are presented and explained which show that the system can be a promising air dehumidifier device in air conditioning systems.

• 出版日期2016-7-25