A novel approach for engineering efficient nanofluids by radiolysis

Maaza, M.; Khamliche, T.; Akbari, M.; Kana, N.; Tandjigora, N.; Beukes, P.; Genu, A.; Kaviyarasu, K.; Cloete, J. K.; Lekala, M.; Gibaud, A.; Henini, M.

Abstract

This contribution reports for the first time the possibility of using radiolysis to engineer stable efficient nanofluids which exhibit an enhanced thermal conductivity. The validation was confirmed on Ag-H2O and Ag-C2H6O2 nanofluids fabricated via g-radiolysis within the mild dose range of 0.95 × 103–2.45 × 103 Gray. The enhanced thermal conductivity of Ag-H2O and Ag-C2H6O2 nanofluids, was found to be g-radiations dose dependent. In the latter case of Ag-C2H6O2 nanofluid, the relative enhancement in the temperature range of 25–50 °C was found to be 8.89%, 11.54%, 18.69%, 23.57% and 18.45% for D1 = 0.95 × 103 Gray, D2 = 1.2 × 103 Gray, D3 = 1.54 × 103 Gray, D4 = 1.80 × 103 Gray and D5 = 2.45 × 103 Gray respectively. Yet not optimized, an enhancement of the effective thermal conductivity as much as 23.57% relatively to pure C2H6O2 was observed in stable Ag-C2H6O2 nanofluids. Equivalent results were obtained with Ag-H2O.

Citation

Maaza, M., Khamliche, T., Akbari, M., Kana, N., Tandjigora, N., Beukes, P., …Henini, M. (2022). A novel approach for engineering efficient nanofluids by radiolysis. Scientific Reports, 12, Article 10767. https://doi.org/10.1038/s41598-022-14540-z

• Journal Article Type: Article
• Acceptance Date: Jun 8, 2022
• Online Publication Date: Jun 24, 2022
• Publication Date: Jun 24, 2022
• Deposit Date: Sep 11, 2022
• Publicly Available Date: Sep 13, 2022
• Journal: Scientific Reports
• Electronic ISSN: 2045-2322
• Publisher: Nature Publishing Group
• Peer Reviewed: Peer Reviewed
• Volume: 12
• Article Number: 10767
• DOI: https://doi.org/10.1038/s41598-022-14540-z
• Keywords: Multidisciplinary
• Public URL: https://nottingham-repository.worktribe.com/output/11136300
• Publisher URL: https://www.nature.com/articles/s41598-022-14540-z