Membrane-based liquid desiccant air dehumidification: A comprehensive review on materials, components, systems and performances

Journal Article · Tue May 14 04:00:00 EDT 2019 · Renewable and Sustainable Energy Reviews

DOI:https://doi.org/10.1016/j.rser.2019.04.018· OSTI ID:1542214

Liu, Xiaoli ^[1]; Qu, Ming ^[1]; Liu, Xiaobing ^[2]; Wang, Lingshi ^[2]

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1. Purdue Univ., West Lafayette, IN (United States)
2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Membrane-based liquid desiccant air dehumidification (MLDAD) is a separation process driven by the vapor pressure difference. In contrast to 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. Here, 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.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Building Technologies Office (EE-5B)
• Grant/Contract Number: AC05-00OR22725
• OSTI ID: 1542214
• Journal Information: Renewable and Sustainable Energy Reviews, Journal Name: Renewable and Sustainable Energy Reviews Journal Issue: C Vol. 110; ISSN 1364-0321
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
Air dehumidifier
Dehumidification system
Liquid desiccant
Membrane
Module design
Performance comparison