Hydrogels beads for cooling solar panels: Experimental study

Saber Ragab Abdallah*, Hind Saidani-Scott, Jorge Benedi, M. A. Abdelrahman

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

26 Citations (Scopus)
168 Downloads (Pure)


This paper aims to present a new and novel experimental study for the usage of hydrogel beads with different bed configurations as a cooling attachment underneath solar panel. Four different bed configurations were studied using different layers and fins arrangements then compared with the un-cooled system. The best results were obtained using 3 rows of hydrogel beads with fins where the panel temperature dropped by approximately 10 ̊ C below the un-cooled panel at 1000 W/m2 (representing around 14% temperature drop comparing to the panels’ initial temperature) leading to an increase in the electricity generation efficiency of 7.2 % compared with the un-cooled system.
Original languageEnglish
Pages (from-to)777-786
Number of pages9
JournalRenewable Energy
Early online date18 Feb 2020
Publication statusPublished - 1 Jun 2020


  • Evaporation
  • Solar panels
  • Cooling
  • Materials
  • Hydrogel
  • Saturated


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