Low energy adsorption desalination technology

Jun W. Wu*, Eric J. Hu, Mark J. Biggs

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


Adsorption-based desalination (AD) is attracting increasing attention because of its ability to use low-grade thermal energy to co-generate fresh water and cooling. In this paper, the working principle of the AD technology and the possible operation cycles of AD system have been described. A thermodynamic model has been developed in order to study the operational parameters that influence the fresh water production rate (FWPR) and energy consumption of silica gel based AD system. Water adsorption on the silica gel is modelled using a Langmuir isotherm and the factors studied are the heating and cooling water temperatures, which supply and remove heat from the silica gel respectively, and the set temperature of the evaporator. The result shows that the cooling water temperature has far more significant impact on the both water productivity and energy consumption compared to the heating water temperature. The paper also discusses in detail the impact of evaporator temperature on the thermodynamic cycle when the system is operated in desalination mode only.

Original languageEnglish
Title of host publicationRenewable and Sustainable Energy
PublisherTrans Tech Publications
Number of pages6
ISBN (Print)9783037852651
Publication statusPublished - 2012
Event2011 International Conference on Energy, Environment and Sustainable Development - Shanghai, China
Duration: 21 Oct 201123 Oct 2011

Publication series

NameAdvanced Materials Research
ISSN (Print)1022-6680


Conference2011 International Conference on Energy, Environment and Sustainable Development
Abbreviated titleICEESD 2011


  • Adsorption Desalination
  • Co-generation
  • Silica gel-water
  • Thermodynamic cycles

ASJC Scopus subject areas

  • General Engineering


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