Experimental and modeling analysis of membrane-based air dehumidification

Thuan Duc Bui, Feng Chen, Aqdas Nida, Kian Jon Chua*, Kim Choon Ng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

91 Scopus citations


In this work, a membrane cross flow filtration is studied specifically for the purpose of air dehumidification. A flat sheet composite membrane comprising ceramic and polymeric layers with varied water vapor permeability and selectivity has been developed. Effects of the feed air velocity and humidity, the membrane permeability and selectivity, and the permeate pressure on dehumidification performance (i.e. water vapor removal) and resulting COP (Coefficient of Performance) under a cross-flow flat-sheet setting is systematically studied. Results have shown that the membrane dehumidification performance does not depend on the feed air humidity while its COP does not dependent on the membrane's permeability and the feed air velocity. There exists a tradeoff between the membrane's ability to dehumidify and its achievable COP when both selectivity and permeate pressure are varied.

Original languageEnglish (US)
Pages (from-to)114-122
Number of pages9
JournalSeparation and Purification Technology
StatePublished - Apr 15 2015

Bibliographical note

Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.


  • Air conditioning
  • Air dehumidification
  • Dehumidification simulation
  • Isothermal dehumidification
  • Vacuum membrane dehumidification

ASJC Scopus subject areas

  • Analytical Chemistry
  • Filtration and Separation


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