Innovative solid desiccant dehumidification using distributed microwaves

Doskhan Ybyraiymkul, Qian Chen, Muhammad Burhan, Faheem Hassan Akhtar, Raid AlRowais, Muhammad Wakil Shahzad, M Kum Ja, Kim Choon Ng

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Dehumidification is one of the key challenges facing the air conditioning (AC) industry in the treatment of moist air. Over many decades, the dual role of heat exchangers of AC chillers for the sensible and latent cooling of space has hindered the thermal-lift reduction in the refrigeration cycle due to the requirements of water vapor removal at dew-point and heat rejection to the ambient air. These practical constraints of AC chillers have resulted in the leveling of energy efficiency of mechanical vapor compressors (MVC) for many decades. One promising approach to energy efficiency improvement is the decoupling of dehumidification from sensible processes so that innovative but separate processes can be applied. In this paper, an advanced microwave dehumidification method is investigated in the laboratory, where the microwave (2.45 GHz) energy can be irradiated onto the dipole structure of water vapor molecules, desorbing rapidly from the pores of adsorbent. Results show a significant improvement in performance for microwave dehumidification, up to fourfold, as compared to data available in the literature.
Original languageEnglish (US)
JournalScientific Reports
Issue number1
StatePublished - May 6 2023

Bibliographical note

KAUST Repository Item: Exported on 2023-05-20
Acknowledged KAUST grant number(s): REP/1/3988-01-01, REP/1/3988-04-01
Acknowledgements: The authors gratefully acknowledge the generous funding from (1) the KAUST Cooling Initiative (KCI) project, REP/1/3988-01-01, and REP/1/3988-04-01, (2) the Water Desalination and Reuse Center (WDRC), King Abdullah University of Science and Technology (KAUST). Figures 1a,b were drawn by D.Y.

ASJC Scopus subject areas

  • General


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