Thermodynamic optimization of a low-temperature desalination system driven by sensible heat sources

Q. Chen*, S. J. Oh, Y. Li, M. Kum Ja

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


Thermal desalination technologies play a dominant role in seawater desalination, especially in GCC countries. However, the energy-intensive nature of these technologies limits their applications to relatively affluent regions. Therefore, it is of great significance to introduce new heat sources, e.g. renewable energy and industry waste heat, for thermal desalination. The spray-assisted low-temperature desalination (SLTD) is a novel technology that utilizes low-grade heat sources effectively. This paper specially adopts the SLTD technology to sensible heat sources. The performance of a conventional steam-driven SLTD system employing sensible heat sources is firstly investigated. Analytical results reveal that the conventional configuration is unable to make full use of the sensible heat sources. In order to improve energy utilization, the configuration is modified to enable internal heat recovery. The proposed configuration is able to boost the freshwater production by as much as 79%, while the desalination cost is reduced by 11%.

Original languageEnglish (US)
Article number116633
StatePublished - Feb 1 2020

Bibliographical note

Funding Information:
The authors gratefully acknowledge the generous funding from (1) the National Research Foundation Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) programme, (2) the China Scholarship Council ( CSC ), and (3) Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2019R1F1A1061693).

Publisher Copyright:
© 2019 Elsevier Ltd


  • Internal heat recovery
  • Sensible heat source
  • Spray-assisted low-temperature desalination
  • Thermodynamic optimization

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Modeling and Simulation
  • Renewable Energy, Sustainability and the Environment
  • Building and Construction
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Pollution
  • Mechanical Engineering
  • Energy(all)
  • Management, Monitoring, Policy and Law
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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