Effect of aggregation and interfacial thermal resistance on thermal conductivity of nanocomposites and colloidal nanofluids

William Evans, Ravi Prasher, Jacob Fish, Paul Meakin, Patrick Phelan, Pawel Keblinski

Research output: Contribution to journalArticle

293 Citations (Scopus)

Abstract

We analyzed the role of aggregation and interfacial thermal resistance on the effective thermal conductivity of nanofluids and nanocomposites. We found that the thermal conductivity of nanofluids and nanocomposites can be significantly enhanced by the aggregation of nanoparticles into clusters. The value of the thermal conductivity enhancement is determined by the cluster morphology, filler conductivity and interfacial thermal resistance. We also compared thermal conductivity enhancement due to aggregation with that associated with high-aspect ratio fillers, including fibers and plates.

Original languageEnglish (US)
Pages (from-to)1431-1438
Number of pages8
JournalInternational Journal of Heat and Mass Transfer
Volume51
Issue number5-6
DOIs
StatePublished - Mar 2008

Fingerprint

thermal resistance
Heat resistance
Thermal conductivity
Nanocomposites
nanocomposites
thermal conductivity
Agglomeration
fillers
Fillers
augmentation
high aspect ratio
Aspect ratio
Nanoparticles
conductivity
nanoparticles
fibers
Fibers

Keywords

  • Aggregation
  • Homogenization model
  • Interfacial thermal resistance
  • Monte Carlo simulation
  • Nanoparticles
  • Thermal conductivity

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Energy(all)
  • Mechanical Engineering

Cite this

Effect of aggregation and interfacial thermal resistance on thermal conductivity of nanocomposites and colloidal nanofluids. / Evans, William; Prasher, Ravi; Fish, Jacob; Meakin, Paul; Phelan, Patrick; Keblinski, Pawel.

In: International Journal of Heat and Mass Transfer, Vol. 51, No. 5-6, 03.2008, p. 1431-1438.

Research output: Contribution to journalArticle

Evans, William ; Prasher, Ravi ; Fish, Jacob ; Meakin, Paul ; Phelan, Patrick ; Keblinski, Pawel. / Effect of aggregation and interfacial thermal resistance on thermal conductivity of nanocomposites and colloidal nanofluids. In: International Journal of Heat and Mass Transfer. 2008 ; Vol. 51, No. 5-6. pp. 1431-1438.
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