Thermophysical characteristics of ethylene glycol-based copper nanofluids using nonequilibrium and equilibrium methods

Yung-Sheng Lin; Pai-Yi Hsiao; Ching-Chang Chieng

doi:10.1016/j.ijthermalsci.2012.02.003

Author(s)

Yung-Sheng Lin
Pai-Yi Hsiao
Ching-Chang Chieng

Detail(s)

Original language	English
Pages (from-to)	56-60
Journal / Publication	International Journal of Thermal Sciences
Volume	62
Publication status	Published - Dec 2012

Link(s)

DOI	DOI https://doi.org/10.1016/j.ijthermalsci.2012.02.003 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84867742575&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(9dfd7410-ac80-47f9-a0a4-257163db7ef7).html

Abstract

Enhancement of thermal conductivity for nanofluids has been demonstrated in numerous experiments and analysis. The present study calculates the thermal conductivity and reveals molecular-level mechanisms for copper nanoparticles suspended in ethylene glycol using molecular dynamic simulations. Computed thermal conductivities of the nanofluids using Green-Kubo formalism and using Nonequilibrium MD Methods are compared. Contributions for possible heat transfer modes in molecular level are quantized, including modes of convection and interaction using Green-Kubo formalism. The simulations not only confirm that the enhancement of thermal conductivity due to the suspending nanoparticle is increased with volume fraction and the size of the nanoparticle but also identify the significant contributions from atom interaction.© 2011 Elsevier Masson SAS. All rights reserved.