A Review of Regeneration Methods for Liquid Desiccant Air-Conditioning System

Liquid desiccant air-conditioning system (LDAS) is a novel air-conditioner with good energy saving potential, which should be a promising choice to meet the needs of cooling and moisture loads. For the liquid desiccant air-conditioning system, the energy consumption mainly relies on the regeneration process of the desiccant solution. At present, thermal energy (TH regeneration) is widely used for the desiccant regeneration process of the liquid desiccant air-conditioning system. Meanwhile, many new regeneration patterns are also being investigated, such as RO regeneration and ED regeneration. In this paper, the principles of three regeneration methods (solar TH regeneration, RO regeneration and ED regeneration) for the liquid desiccant air-conditioning system are reviewed and the different performance evaluation models of three regeneration systems for the liquid desiccant air-conditioning system are investigated. What's more, the comparison of three regeneration systems for the liquid desiccant air-conditioning system is discussed.