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Enhancing thermal conductivity of fluids with nano-particles

01 Jan 1995-Vol. 231, pp 99-105
About: The article was published on 1995-01-01 and is currently open access. It has received 7263 citations till now. The article focuses on the topics: Thermal conductivity & Nanoparticle.
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Journal ArticleDOI
TL;DR: In this paper, a comparison of thermal performance of helical screw tape inserts in laminar flow of Al2O3/water and CuO/water nanofluids through a straight circular duct with constant heat flux boundary condition is presented.

79 citations

Journal ArticleDOI
TL;DR: In this paper, the authors studied the cooling of a solar cell by forced convection in the presence of a nanofluid and used the finite elements method to solve the system of differential equations that is based on the Galerkin method.

79 citations


Additional excerpts

  • ...( ) +−= (9) Equations (1) to (4) can be converted to the dimensionless forms by using the following parameters: ( ) ( )= , ( ) ( )= , ( )− − = , = Therefore using the above parameters leads to dimensionless forms of the governing equations as below: 0 y U x U * * * * = ∂ ∂ + ∂ ∂ (10) ( )( ) ∂ ∂ + ∂ ∂ −+− + ∂ ∂ −= ∂ ∂ + ∂ ∂ + ∂ ∂ (11) ( )( ) ∂ ∂ + ∂ ∂ −+− + ∂ ∂ −= ∂ ∂ + ∂ ∂ + ∂ ∂ (12) ( ) ( ) ( ) ∂ ∂ + ∂ ∂ −++ ++− +− = ∂ ∂ + ∂ ∂ + ∂ ∂ (13) Where figure the following dimensionless numbers and ratio: = , = , = , = , ( ) ( ) ( )= The dimensionless boundaries conditions are given in Table1 Table1: dimensionless boundaries conditions Right and left walls = ∂ ∂ == Solar cells === Inlet === Outlet = ∂ ∂ =...

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  • ...( ) + − = (9) Equations (1) to (4) can be converted to the dimensionless forms by using the following parameters: ( ) ( ) = , ( ) ( ) = , ( ) − − = , =...

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Journal ArticleDOI
TL;DR: In this article, the effect of different weight concentration and temperatures on convective heat transfer was evaluated in a horizontal shell and tube heat exchanger under laminar, transient and turbulent flow with three different heat fluxes.

79 citations

Journal ArticleDOI
TL;DR: In this paper, the effects of various parameters such as the buoyancy parameter, the magnetic parameters, the volume fraction of nanofluid and the radiation parameter are investigated on the velocity and temperature.

79 citations

Journal ArticleDOI
TL;DR: In this paper, a numerical work is carried out to examine a steady, incompressible and two-dimensional laminar flow impact of third grade fluid model (non-Newtonian) over a stretchable surface with gyrotactic microorganisms.

79 citations