Numerical Analysis of Convective Heat Transfer in Fenestration with Between-the-Glass Louvered Shades

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Date

2009-10

Authors

Wright, John L.
Collins, Michael R.
Tasnim, Syeda Humaira

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Volume Title

Publisher

Elsevier

Abstract

A two-dimensional steady laminar natural convection model of a window cavity with between-panes louvers (i.e., slats) was developed by approximating the system as a vertical cavity with isothermal walls at different temperatures, and with rotatable baffles located midway between the walls. The baffles were set to a third temperature so that night-time and day-time conditions could be considered. The effects of wall spacing, baffle angle and temperature, and the wall-to-wall temperature difference were examined. It was found that the system is suited to a traditional one-dimensional analysis, and that the convective heat transfer is largely independent of the Rayleigh number for the conditions of practical interest.

Description

The final publication is available at Elsevier via http://doi.org/10.1016/j.buildenv.2009.03.017 © 2009. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

Fenestration, Shading, Louvers, Heat transfer, Between-panes

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