Materials for energy conversion in membrane distillation localized heating: Review, analysis and future perspectives of a paradigm shift

Sofiane Soukane, Hyuk Soo Son, Mustakeem Mustakeem, M. Obaid, Alla Alpatova, Adnan Qamar, Yong Jin, Noreddine Ghaffour*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

17 Scopus citations

Abstract

Despite its ability to treat high salinity feeds and its integration readiness with renewable energy, membrane distillation (MD) is still facing many challenges. Intrinsically, the process suffers from low water fluxes and high thermal energy input, further aggravated by the temperature polarization phenomenon. Recent progress in MD design to improve its efficiency has taken the process to the heart of the materials-energy nexus. The use of advanced materials for efficient heat delivery has led to the concept of localized heating. Here, after emphasizing the main challenges that still hinder MD from reaching the industry arena, a compilation of the energy sources used in localized heating with concomitant materials is presented. Whether by coating, or incorporation, or brought close to the membrane, materials are grouped following the energy sources they respond to and their level of integration in the MD system is discussed accordingly. An energy analysis is carried out for cases reported in the literature. Results are assembled following different criteria to highlight the performance achieved with each energy source, the material integration strategy and the MD variant used with an adjustment if photovoltaics research cells are to power these energy sources in the future. Particular emphasis is put on process scale-up opportunities when localized heating is used compared to classical MD configurations. It is shown that, although localized heating provides a significant improvement, process and module design need to be included in the material energy development loop for MD to fully penetrate the desalination and water treatment industry.

Original languageEnglish (US)
Article number112702
JournalRenewable and Sustainable Energy Reviews
Volume167
DOIs
StatePublished - Oct 2022

Bibliographical note

Funding Information:
The research reported in this paper was supported by King Abdullah University of Science and Technology (KAUST) , Saudi Arabia. Graphical abstract was produced by Ana Bigio, scientific illustrator.

Publisher Copyright:
© 2022

Keywords

  • Energy-efficient desalination
  • Joule heating
  • Material-energy nexus
  • Materials integration
  • Photo-thermal heating
  • Solar light-to-heat conversion
  • Thermal efficiency

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

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