Nanofluid Heat Transfer-A Review

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Author(s) Chidanand K Mangrulkar | Vilayatrai M Kriplani
Pages 136-142
Volume 3
Issue 2
Date February, 2013
Keywords Nanofluids, Nanoparticles, Heat Transfer, Heat Transfer coefficient, Thermal Conductivity

Abstract

Heat transfer rate is considered as critical aspect for the design of rapid heating and cooling environment. The convective heat transfer can be enhanced passively by changing the flow geometry, boundary conditions, or by enhancing the thermal conductivity of the fluid. Researchers tried to increase the heat transfer rate by increasing the thermal conductivity of the fluid. The thermal conductivity of the fluid can be boosted by the use of nanopowder in the base fluid (uniformly suspended). Nanofluids are termed as the next generation heat transfer elements. Nanofluids cause drastic change in the properties of the base fluid. The mass concentration of nanoparticles is proportional to the rate of heat transfer within critical limit. The Reynolds number, mass concentration of the powder, and size of the particles are the basic parameters controlling the heat transfer of the fluid. The increase in the Nusselt and Peclet number results in the increase in the heat transfer coefficient of the fluid which leads to higher heat transfer rate.

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