Membrane-based liquid desiccant air dehumidification: A comprehensive review on materials, components, systems and performances. (August 2019)

• Record Type: Journal Article
• Authors: Liu, Xiaoli; Qu, Ming; Liu, Xiaobing; Wang, Lingshi
• Is Part Of: Renewable & sustainable energy reviews. Volume 110(2019)
• Page Start: 444
• Page End: 466
• Publication Date: 2019-08
• Subjects: Membrane -- Liquid desiccant -- Air dehumidifier -- Module design -- Dehumidification system -- Performance comparison; Renewable energy sources -- Periodicals; Power resources -- Periodicals; Énergies renouvelables -- Périodiques; Ressources énergétiques -- Périodiques; 333.794
• DOI: 10.1016/j.rser.2019.04.018
• Languages: English
• ISSNs: 1364-0321

Abstract

Abstract: Membrane-based liquid desiccant air dehumidification (MLDAD) is a separation process driven by the vapor pressure difference. Different from the conventional liquid desiccant air dehumidification, MLDAD uses semi-permeable membranes to separate the processing air and desiccant liquid so that only water vapor molecules in the air side can transfer through the membrane and be absorbed by the solution. In this process, the vapor is removed from the air stream, and the carryover of solution droplets in the air is also able to be eliminated. This review addresses the characteristics of liquid desiccants and membranes, the design of MLDAD modules and systems, the performance assessment and comparison of the dehumidification and regeneration module, as well as the system-level energy analysis. State-of-the-art research results are presented, and the future needs for this promising technology are discussed. Highlights: Materials used in Membrane-based Liquid Desiccant Air Dehumidificationwere reviewed. The design of the module and system have been presented. The dehumidification and regeneration performances of the module and the system have been discussed.