Thermophysical properties of materials with nanosized metal particles
pdf (Русский)

Keywords

Heat exchange
convection
Rayleigh number
track membranes
nanostructures

How to Cite

Tsyganova Т. В., & Kruglikov С. С. (2022). Thermophysical properties of materials with nanosized metal particles. Industrial Processes and Technologies, 2(1), 78–86. https://doi.org/10.37816/2713-0789-2022-2-1-78-86

Abstract

Influence of nanoscale particles located on surface on thermophysical properties of materials is considered. Analysis of heat exchange process under conditions of natural convection is given by example of samples of metal nanostructures formed on the basis of track membranes, which were used as templates or matrices. The obtained samples were metal foil, on the surface of which nanostructures were located, repeating the cylindrical shape of the pores of the original track membrane. It is shown that the presence of nanosized particles change the formulas for calculating the heat transfer coefficient of the surface. Thermal resistance of the heat carrier flow moving along the surface is added to the thermal resistance of the fixed film surrounding the nanoparticles. It is shown that corrections to the surface heat transfer coefficient depend on the Rayleigh number. The algorithm of calculation of corrections and the order of its application is presented.

https://doi.org/10.37816/2713-0789-2022-2-1-78-86
pdf (Русский)
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