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Experimental and Theoretical Studies of Different Parameters on the Thermal Conductivity of Nanofluids

This work experimentally investigated the effects of different factors, including nanoparticle size and type, volume fraction, and base fluid, on the thermal conductivity enhancement of nanofluids. The experimental results indicate that the thermal conductivity enhancement of nanofluids is proportio...

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Detalles Bibliográficos
Autores principales: Qin, Jun, Tao, Yuequn, Liu, Qiusheng, Li, Zilong, Zhu, Zhiqiang, He, Naifeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10220727/
https://www.ncbi.nlm.nih.gov/pubmed/37241588
http://dx.doi.org/10.3390/mi14050964
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author Qin, Jun
Tao, Yuequn
Liu, Qiusheng
Li, Zilong
Zhu, Zhiqiang
He, Naifeng
author_facet Qin, Jun
Tao, Yuequn
Liu, Qiusheng
Li, Zilong
Zhu, Zhiqiang
He, Naifeng
author_sort Qin, Jun
collection PubMed
description This work experimentally investigated the effects of different factors, including nanoparticle size and type, volume fraction, and base fluid, on the thermal conductivity enhancement of nanofluids. The experimental results indicate that the thermal conductivity enhancement of nanofluids is proportional to the thermal conductivity of the nanoparticles, with the enhancement being more pronounced for fluids with lower thermal conductivity. Meanwhile, the thermal conductivity of nanofluids decreases with increasing particle size and increases with increasing volume fraction. In addition, elongated particles are superior to spherical ones for thermal conductivity enhancement. This paper also proposes a thermal conductivity model by introducing the effect of nanoparticle size based on the previous classical thermal conductivity model via the method of dimensional analysis. This model analyzes the magnitude of influencing factors on the thermal conductivity of nanofluid and proposes suggestions for an improvement in thermal conductivity enhancement.
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spelling pubmed-102207272023-05-28 Experimental and Theoretical Studies of Different Parameters on the Thermal Conductivity of Nanofluids Qin, Jun Tao, Yuequn Liu, Qiusheng Li, Zilong Zhu, Zhiqiang He, Naifeng Micromachines (Basel) Article This work experimentally investigated the effects of different factors, including nanoparticle size and type, volume fraction, and base fluid, on the thermal conductivity enhancement of nanofluids. The experimental results indicate that the thermal conductivity enhancement of nanofluids is proportional to the thermal conductivity of the nanoparticles, with the enhancement being more pronounced for fluids with lower thermal conductivity. Meanwhile, the thermal conductivity of nanofluids decreases with increasing particle size and increases with increasing volume fraction. In addition, elongated particles are superior to spherical ones for thermal conductivity enhancement. This paper also proposes a thermal conductivity model by introducing the effect of nanoparticle size based on the previous classical thermal conductivity model via the method of dimensional analysis. This model analyzes the magnitude of influencing factors on the thermal conductivity of nanofluid and proposes suggestions for an improvement in thermal conductivity enhancement. MDPI 2023-04-28 /pmc/articles/PMC10220727/ /pubmed/37241588 http://dx.doi.org/10.3390/mi14050964 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Qin, Jun
Tao, Yuequn
Liu, Qiusheng
Li, Zilong
Zhu, Zhiqiang
He, Naifeng
Experimental and Theoretical Studies of Different Parameters on the Thermal Conductivity of Nanofluids
title Experimental and Theoretical Studies of Different Parameters on the Thermal Conductivity of Nanofluids
title_full Experimental and Theoretical Studies of Different Parameters on the Thermal Conductivity of Nanofluids
title_fullStr Experimental and Theoretical Studies of Different Parameters on the Thermal Conductivity of Nanofluids
title_full_unstemmed Experimental and Theoretical Studies of Different Parameters on the Thermal Conductivity of Nanofluids
title_short Experimental and Theoretical Studies of Different Parameters on the Thermal Conductivity of Nanofluids
title_sort experimental and theoretical studies of different parameters on the thermal conductivity of nanofluids
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10220727/
https://www.ncbi.nlm.nih.gov/pubmed/37241588
http://dx.doi.org/10.3390/mi14050964
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