Wright, John L.Collins, Michael R.Tasnim, Syeda Humaira2017-04-122017-04-122009-10http://doi.org/10.1016/j.buildenv.2009.03.017http://hdl.handle.net/10012/11654The 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/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.enAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/FenestrationShadingLouversHeat transferBetween-panesArticle