A molecular dynamics study of the effect of nanoparticles coating on thermal conductivity of nanofluids
Open Access
- 4 March 2021
- journal article
- research article
- Published by Institution of Engineering and Technology (IET) in Micro & Nano Letters
- Vol. 16 (3), 221-226
- https://doi.org/10.1049/mna2.12034
Abstract
Nanofluids have become the subject of theoretical and experimental researches over the last few decades due to their enhanced heat transfer performance. In this study, thermal conductivity of copper argon nanofluids containing coated and non‐coated copper particles is determined through MD simulation. Coating over the nanoparticles is applied to provide long‐term stable dispersion and also to enhance the heat transfer performance. Thermal conductivity of nanofluids depends on the types of coating applied over the nanoparticles. The role of surface coating over the nanoparticles in enhancing thermal properties of the nanofluids is discussed and compared to that of non‐coated particles. The silver coating is applied over the copper nanoparticles. Green Kubo method is employed to determine the thermal conductivity of the nanofluids. Result shows that, for volume fraction 3% and 86 K system temperature, thermal conductivity enhancement of nanofluid containing coated particle is 17% compared to that of base fluid and without coating, thermal conductivity enhancement is 12%. The mechanism of increased heat transfer performance for surface coating over the nanoparticles is discussed in this paper.This publication has 28 references indexed in Scilit:
- Molecular dynamics study of the thermal conductivity in nanofluidsChemical Physics, 2018
- Experiment and Artificial Neural Network Prediction of Thermal Conductivity and Viscosity for Alumina-Water NanofluidsMaterials, 2017
- Molecular Dynamic Simulation on the Thermal Conductivity of Nanofluids in Aggregated and Non-Aggregated StatesNumerical Heat Transfer, Part A: Applications, 2015
- A review on hybrid nanofluids: Recent research, development and applicationsRenewable and Sustainable Energy Reviews, 2015
- Molecular Dynamics Simulation on Effect of Nanoparticle Aggregation on Transport Properties of a Nanofluid1Journal of Nanotechnology in Engineering and Medicine, 2012
- A review on applications and challenges of nanofluidsRenewable and Sustainable Energy Reviews, 2011
- Investigations of thermal conductivity and viscosity of nanofluidsInternational Journal of Thermal Sciences, 2008
- Thermal conductivity and particle agglomeration in alumina nanofluids: Experiment and theoryPhysical Review E, 2007
- Potential impacts of nanotechnology on energy transmission applications and needs.Published by Office of Scientific and Technical Information (OSTI) ,2007
- Molecular dynamics simulation of effective thermal conductivity and study of enhanced thermal transport mechanism in nanofluidsJournal of Applied Physics, 2007