INVESTIGATION OF FLUID-FLOW AND HEAT-TRANSFER IN A VERTICAL CHANNEL HEATED FROM ONE SIDE BY PV ELEMENTS .1. NUMERICAL STUDY

Citation
B. Moshfegh et M. Sandberg, INVESTIGATION OF FLUID-FLOW AND HEAT-TRANSFER IN A VERTICAL CHANNEL HEATED FROM ONE SIDE BY PV ELEMENTS .1. NUMERICAL STUDY, Renewable energy, 8(1-4), 1996, pp. 248-253
Citations number
8
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Energy & Fuels
Journal title
ISSN journal
0960-1481
Volume
8
Issue
1-4
Year of publication
1996
Pages
248 - 253
Database
ISI
SICI code
0960-1481(1996)8:1-4<248:IOFAHI>2.0.ZU;2-T
Abstract
The impetus of this paper is to analyse numerically the fluid flow and heat transfer characteristics of buoyancy-driven convection between t wo vertical parallel walls, heated from one side. Both convection and radiation heat exchanges are considered as the heat transfer mechanism s by which the thermal energy is transferred into the air. A steady-st ate two-dimensional model is used for the analysis. Numerical results are derived for a channel of 6.5 m in height and different widths of t he channel. Various heat fluxes are considered in order to show the ef fect of the input heat on the heat transfer across the air layer. Deta iled studies of the flow and thermal fields in the air are presented i n order to explore the thermal behavior of air in the channel. Velocit y and temperature profiles of the outlet air and the surface temperatu re of the heated and insulated wall are presented. In Part II of this paper the findings from an experimental study are reported.