Open Access

ARTICLE

HEAT AND MASS TRANSFER AND ENTROPY GENERATION INSIDE 3D TRAPEZOIDAL SOLAR DISTILLER

by

a Mechanical Engineering Department, College of Engineering, Haïl University, Haïl City, Saudi Arabia
b Dept. of Automotive and Marine Engineering Technology, College of Technological Studies, The Public Authority for Applied Education and Training, Kuwait
c Unité de Recherche Matériaux, Energie et Energies Renouvelables, Faculté des Sciences de Gafsa, Tunisie
d Unité de Recherche de Métrologie et des Systèmes Energétiques, Ecole Nationale d’Ingénieurs, 5000 Monastir, University of Monastir, Tunisia
e Department of Chemical and Materials Engineering, College of Engineering, Northern Border University, P.O. Box 1321, Arar, Saudi Arabia
f Laboratoire Matériaux Molécules et Applications-IPEST La Marsa, Tunisia

* Corresponding Author: Email:

Frontiers in Heat and Mass Transfer 2017, 9, 1-9. https://doi.org/10.5098/hmt.9.8

Abstract

Numerical study of double-diffusive natural convection flow and entropy generation in 3D trapezoidal solar distiller was performed using computational fluid dynamics (CFD). In this research the flow, provoked by the interaction of chemical species diffusions and the thermal energy, is assumed to be laminar. Using potential vector-vorticity formulation in its three-dimensional form, the governing equations are formulated and solved by the numerical methodology based on the finite volume method. The main objective is to analyze the effects of buoyancy ratio for opposed temperature and concentration gradients and to focus the attention on three-dimensional aspects and generated entropy. The occurring heat and mass transfer are depicted by the dynamic and temperature fields of the flow inside the trapezoidal cavity. It has been found that the flow structure and the heat and mass transfer are sensitive to the value of buoyancy ratio.

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Keywords

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