Open Access
ARTICLE
HEAT TRANSFER INTENSIFICATION IN A 3D CAVITY USING HYBRID CNT-AL2O3 (15-85%) NANOFLUID
Mohammed A. Tashkandia
, Abdelkarim Aydib,*
a
Department of Mechanical Engineering, College of Engineering, Northern Border University, P.O. Box 1321, Arar, Saudi Arabia
b
Department of Chemical and Materials Engineering, College of Engineering, Northern Border University, P.O. Box 1321, Arar,
Saudi Arabia
* Corresponding Author: Email:
Frontiers in Heat and Mass Transfer 2018, 11, 1-6. https://doi.org/10.5098/hmt.11.27
Abstract
In this work, a computational study of convective heat transfer in a hybrid CNT-Al2O3/water nanofluid cavity filled. The main considered parameters
are the Rayleigh number and nanoparticles volume fraction. Results are presented in terms of flow structure, temperature field, and average Nusselt
number. Since CNT and Al
2O
3 have different shapes to models are used to evaluate the effective thermal conductivity. It was found that both increasing
Rayleigh number and nanoparticles volume fraction increase the heat transfer intensify the flow and affect the temperature field. Adding nanoparticles
enhances the heat transfer due to the enhancement of the effective thermal conductivity. The maximum percentage of heat transfer enhancement occurs
at the transition regime (Ra = 10
4
) and is equal to 28%.
Keywords
Cite This Article
Tashkandi, M. A. (2018). HEAT TRANSFER INTENSIFICATION IN A 3D CAVITY USING HYBRID CNT-AL
2O
3 (15-85%) NANOFLUID.
Frontiers in Heat and Mass Transfer, 11(1), 1–6.