A numerical model for the simulation of double-diffusive natural convection in a right-angled triangular solar collector

Rahman, M.M. and Billah, M.M. and Rahim, N.A. and Amin, N. and Saidur, Rahman and Hasanuzzaman, M. (2011) A numerical model for the simulation of double-diffusive natural convection in a right-angled triangular solar collector. International Journal of Renewable Energy Research, 1 (2). pp. 50-54. ISSN 1309-0127

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Abstract

A numerical model is presented for the simulation of double-diffusive natural convection in a triangular solar collector. This design is encountered in greenhouse solar stills where vertical temperature and concentration gradients between the saline water and transparent cover induce flows in a confined space. This phenomenon plays an important function in the water distillation process and in the biological comfort. In this double-diffusion problem, the ratio Br of the relative magnitude thermal and compositional buoyancy and Rayleigh numbers are key parameters. Finite element technique is used to solve the governing equations. Numerical results are presented for the effect of the abovementioned parameters on local heat and mass transfer rate. In addition, results for the average heat and mass transfer rate are offered and discussed for the mentioned parametric conditions. Some interesting results are found in this investigation.

Item Type: Article
Uncontrolled Keywords: Solar collector; Double-diffusion; Finite element method; Saline water; Transparent cover.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 05 Jul 2013 02:17
Last Modified: 25 Oct 2019 06:14
URI: http://eprints.um.edu.my/id/eprint/6688

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