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RESEARCH PAPERS

Heat Transfer Analysis in an Automated Venetian Blind Window System

[+] Author and Article Information
S. Rheault, E. Bilgen

Ecole Polytechnique, Montreal, Quebec H3C 3A7, Canada

J. Sol. Energy Eng 111(1), 89-95 (Feb 01, 1989) (7 pages) doi:10.1115/1.3268291 History: Received March 10, 1988; Revised September 12, 1988; Online November 11, 2009

Abstract

The heat transfer through an automated venetian blind window system is theoretically studied. The assumptions for the solution of the problem were: Heat transfer is unidimensional, heat exchanges are at steady-state for the whole system, thermal exchange by convection over the blind is negligible, materials used are diffuse-gray surfaces, and radiative exchanges with the room walls are considered as if all the surfaces are blackbodies at indoor air temperature. The solution of the governing equations (system of nonlinear equations) is carried out by using an iterative numerical method. Summarized results are presented and compared to the case of a regular window in a typical Canadian climate during winter and summer seasons and with different louver angles. It is found that by using an automated blind system, the predicted auxiliary load can be reduced by up to 36 percent and 47 percent for winter and summer, respectively.

Copyright © 1989 by ASME
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