A COMPARATIVE STUDY ON THERMAL CONDUCTIVITY AND RHEOLOGY PROPERTIES OF ALUMINA AND MULTI-WALLED CARBON NANOTUBE NANOFLUIDS | Zendy

Bengt Sundén | Zendy; Zan Wu | Zendy; Zhaozan Feng | Zendy; Lars Wadsoe | Zendy

Open Access

A COMPARATIVE STUDY ON THERMAL CONDUCTIVITY AND RHEOLOGY PROPERTIES OF ALUMINA AND MULTI-WALLED CARBON NANOTUBE NANOFLUIDS

Author(s) -

Bengt Sundén,

Zan Wu,

Zhaozan Feng,

Lars Wadsoe

Publication year - 2014

Publication title -

frontiers in heat and mass transfer

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.404

H-Index - 18

ISSN - 2151-8629

DOI - 10.5098/hmt.5.18

Subject(s) - nanofluid , thermal fluids , carbon nanotube , thermal conductivity , materials science , rheology , thermal , nanotechnology , composite material , chemical engineering , thermodynamics , nanoparticle , thermal resistance , engineering , physics

Thermal conductivity and rheology behavior of two aqueous nanofluids, i.e., alumina and multi-walled carbon nanotube (MWCNT) nanofluids, were experimentally investigated and compared with previous analytical models. Information about the possible agglomeration size and interfacial thermal resistance in the nanofluids were obtained and partially validated. By incorporating the effects of interfacial thermal resistance, a revised model was found to accurately reproduce the experimental data based on the agglomeration size extracted from the rheology analysis. In addition, the thermal conductivity change of the alumina/water nanofluid with elapsed time was investigated. Thermal conductivity measurements were also conducted for alumina/water and MWCNT/water nanofluid mixtures.

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