Study on a waste heat-driven adsorption cooling cum desalination cycle

Kim Choon Ng, Kyaw Thu, Bidyut Baran Saha*, Anutosh Chakraborty

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

153 Scopus citations


This article presents the performance analysis of a waste heat-driven adsorption cycle. With the implementation of adsorption-desorption phenomena, the cycle simultaneously produces cooling energy and high-grade potable water. A mathematical model is developed using isotherm characteristics of the adsorbent/adsorbate pair (silica gel and water), energy and mass balances for the each component of the cycle. The cycle is analyzed using key performance parameters namely (i) specific cooling power (SCP), (ii) specific daily water production (SDWP), (iii) the coefficient of performance (COP) and (iv) the overall conversion ratio (OCR). The numerical results of the adsorption cycle are validated using experimental data. The parametric analysis using different hot and chilled water temperatures are reported. At 85°C hot water inlet temperature, the cycle generates 3.6 m 3 of potable water and 23 Rton of cooling at the produced chilled water temperature of 10°C.

Original languageEnglish (US)
Pages (from-to)685-693
Number of pages9
JournalInternational Journal of Refrigeration
Issue number3
StatePublished - May 2012
Externally publishedYes

Bibliographical note

Funding Information:
The authors’ gratefully acknowledge the financial support given by grants ( R265-000-286-597 ) from King Abdullah University of Science and Technology (KAUST) and ( R265-000-287-305 ) from ASTAR , Singapore. The authors also thank the EPSRC of UK for financial support through Grant EP/E038875/1 Thermal Energy Conversion, Conservation and Storage (TECCS) Network.


  • Adsorption
  • Cooling
  • Desalination
  • Recovery
  • Waste heat

ASJC Scopus subject areas

  • Building and Construction
  • Mechanical Engineering


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