Nanofluids for Direct-Absorption Solar Collectors—DASCs: A Review on Recent Progress and Future Perspectives

Hussein Sayed Moghaieb, Vincenzo Amendola, Sameh Khalil, Supriya Chakrabarti, Paul Maguire, Davide Mariotti, M. M. Bhatti (Editor), Kambiz Vafai (Editor), Sara I. Abdelsalam (Editor), Antonio Di Bartolomeo (Editor), Henrich Frielinghaus (Editor)

Research output: Contribution to journalReview articlepeer-review

7 Citations (Scopus)
64 Downloads (Pure)


Owing to their superior optical and thermal properties over conventional fluids, nanofluids represent an innovative approach for use as working fluids in direct-absorption solar collectors for efficient solar-to-thermal energy conversion. The application of nanofluids in direct-absorption solar collectors demands high-performance solar thermal nanofluids that exhibit exceptional physical and chemical stability over long periods and under a variety of operating, fluid dynamics, and temperature conditions. In this review, we discuss recent developments in the field of nanofluids utilized in direct-absorption solar collectors in terms of their preparation techniques, optical behaviours, solar thermal energy conversion performance, as well as their physical and thermal stability, along with the experimental setups and calculation approaches used. We also highlight the challenges associated with the practical implementation of nanofluid-based direct-absorption solar collectors and offer suggestions and an outlook for the future.
Original languageEnglish
Article number1232
Pages (from-to)1-31
Number of pages32
Issue number7
Early online date30 Mar 2023
Publication statusPublished online - 30 Mar 2023

Bibliographical note

Funding Information:
This research was funded by EPSRC grant number EP/V055232/1 and EP/M024938/1 and the Department for Economy-Northern Ireland grant number USI160.

Publisher Copyright:
© 2023 by the authors.


  • Review
  • nanofluids
  • solar thermal energy conversion
  • direct-absorption solar collectors


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