Beilstein J. Nanotechnol.2016,7, 2037–2044, doi:10.3762/bjnano.7.194
notable enhancement in thermal conductivity, when measured by the transient hot-wire method. In contrast, when the conductivity of the same nanofluid is measured by the laserflashmethod, the enhancement reported is about one order of magnitude lower. This difference has been quantitatively resolved for
-mediated heat transfer model; laserflashmethod; nanofluids; thermal conductivity; transient hot-wire method; Introduction
In 1995, Choi et al. [1] dispersed copper nanoparticles in water, and termed the suspension as nanofluid. They observed a large increase in the thermal conductivity of this nanofluid
reducing the heating time and minimizing the contact area between the heat source and the liquid in a well-insulated system. The most common methods for measuring the thermal conductivity of nanofluids are the transient hot-wire method (THWM), the transient plane-source method, the laserflashmethod (LFM
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Figure 1:
Schematic representation of collision mediated heat transfer mechanism.