Title : ( A numerical study on convective heat transfer of Al2O3/water, CuO/water and Cu/water nanofluids through square cross-section duct in laminar flow )
Authors: Saeed Zeinali Heris , Amin Kazemi Beydokhti , Seyed Hossein Noie Baghban , s. Rezvan ,
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Abstract
In this paper the convective heat transfer of Al2O3/water, CuO/water and Cu/water nanofluids through square cross-section duct in a laminar flow with constant temperature boundary conditions is numerically investigated. Because of the size and volume constraints, it may be required to use square flow-passage geometries. Square cross section duct has the advantage of lower pressure drop; although, it has lower heat exchange rate than circular duct. On the other hand, this study shows that this could be compensated by using nanofluids in these systems. Dispersion model was used to include presence of nanoparticles. Results show that the Nusselt number was enhanced by increasing the concentration and decreasing the size of nanoparticles. Up to 77%, 68% and 59% enhancement in Nusselt number for Cu/water, CuO/water and Al2O3/water nanofluids at 4.0% vol of 10nm nanoparticles was achieved respectively.
Keywords
, Nanofluid, Numerical solution, Convective heat transfer, Dispersion model, Square cross-section duct
@article{paperid:1023216,
author = {Zeinali Heris, Saeed and Kazemi Beydokhti, Amin and Noie Baghban, Seyed Hossein and S. Rezvan},
title = {A numerical study on convective heat transfer of Al2O3/water, CuO/water and Cu/water nanofluids through square cross-section duct in laminar flow},
journal = {Engineering Applications of Computational Fluid Mechanics},
year = {2012},
volume = {6},
number = {1},
month = {March},
issn = {1994-2060},
pages = {1--14},
numpages = {13},
keywords = {Nanofluid; Numerical solution; Convective heat transfer; Dispersion model; Square cross-section duct},
}
%0 Journal Article
%T A numerical study on convective heat transfer of Al2O3/water, CuO/water and Cu/water nanofluids through square cross-section duct in laminar flow
%A Zeinali Heris, Saeed
%A Kazemi Beydokhti, Amin
%A Noie Baghban, Seyed Hossein
%A S. Rezvan
%J Engineering Applications of Computational Fluid Mechanics
%@ 1994-2060
%D 2012
