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Thermal conductivity and thermal diffusivity of fullerene-based nanofluids



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Reding, Brian and Khayet Souhaimi, Mohamed (2022) Thermal conductivity and thermal diffusivity of fullerene-based nanofluids. Scientific reports, 12 (1). ISSN 2045-2322

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Official URL: http://dx.doi.org/10.1038/s41598-022-14204-y


Owing to their outstanding characteristics, carbon based nanofluids (CbNFs) have been applied to various advanced heat transfer and cooling technologies. It was claimed that these CbNFs can considerably improve the properties of the base working fluids. Among all the thermal characteristics, the thermal conductivity (lambda) is regarded as the primary parameter to be considered for the application of nanofluids (NFs). In the present research study we measured for the first time both lambda and thermal diffusivity (a(T)) of very stable fullerene (C-60)-based NFs in liquid phase (1,2,3,4-tetrahydronaphthalene and 1,2-dicholorobenzene) by the transient multi-current hot wire technique at atmospheric pressure in a wide range of temperature (254-323 K). Similar to the base liquids (BLs), we observed a slight decrease in lambda with an increase in temperature. Additionally, compared to the BLs lambda was reduced upon the addition of C-60. The results were compared with the predicted ones using different theoretical models. Not much variation in a(T) was observed between the C-60 NFs and the corresponding BLs due partly to the small variation of lambda with the addition of C-60.

Item Type:Article
Additional Information:

This project has received funding from the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement No 753319 (Acronym: PCMNano). The authors thank Dr. José María Ortiz de Zárate for all needed support to develop the experimental part of this research study.

Uncontrolled Keywords:Heat-transfer enhancement; Carbon nanotubes; Graphene nanoplatelets; Aqueous suspensions; Model; Stability; Surfactants; Viscosity; Aggregation; Dispersion
Subjects:Sciences > Physics > Thermodynamics
ID Code:76502
Deposited On:08 Feb 2023 09:47
Last Modified:08 Feb 2023 09:47

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