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A novel approach for engineering efficient nanofluids by radiolysis

Article scientifique 2022 Anglais

Résumé

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-C2H6O2nanofluids fabricated via g-radiolysis within the mild dose range of 0.95 × 103–2.45 × 103Gray. The enhanced thermal conductivity of Ag-H2O and Ag-C2H6O2nanofluids, was found to be g-radiations dose dependent. In the latter case of Ag-C2H6O2nanofluid, 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 × 103Gray, D2 = 1.2 × 103Gray, D3 = 1.54 × 103Gray, D4 = 1.80 × 103Gray and D5 = 2.45 × 103Gray respectively. Yet not optimized, an enhancement of the effective thermal conductivity as much as 23.57% relatively to pure C2H6O2was observed in stable Ag-C2H6O2nanofluids. Equivalent results were obtained with Ag-H2O.

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Khamliche, T., Akbari, M., Kana, N., Tandjigora, N., Beukes, P., Genu, A., Kaviyarasu, K., K.Cloete, J., Lekala, M., Gibaud, A., Henini, M. (2022). A novel approach for engineering efficient nanofluids by radiolysis. https://doi.org/10.1038/s41598-022-14540-z

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Auteur(s)

T. Khamliche Mahmood Akbari N. Kana N. Tandjigora Piet Beukes A. Genu K. Kaviyarasu J. K.Cloete M. L. Lekala A. Gibaud M. Henini

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