Heat transfer analysis in an automated venetian blind window system

Journal Article · Wed Feb 01 04:00:00 EST 1989 · J. Sol. Energy Eng.; (United States)

DOI:https://doi.org/10.1115/1.3268291· OSTI ID:6205754

Rheault, S; Bilgen, E

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.

• Research Organization: Ecole Polytechnique, Montreal, Quebec (CA)
• OSTI ID: 6205754
• Journal Information: J. Sol. Energy Eng.; (United States), Journal Name: J. Sol. Energy Eng.; (United States) Vol. 111:1; ISSN JSEED
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
142000* -- Solar Energy-- Heat Storage-- (1980-)
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320107 -- Energy Conservation
Consumption
& Utilization-- Building Systems-- (1987-)
AUTOMATION
BUILDINGS
CANADA
CONVECTION
DATA
ENERGY CONSERVATION
ENERGY TRANSFER
EQUATIONS
HEAT TRANSFER
INFORMATION
ITERATIVE METHODS
MASS TRANSFER
NATURAL CONVECTION
NONLINEAR PROBLEMS
NORTH AMERICA
NUMERICAL DATA
OPENINGS
SEASONAL VARIATIONS
THEORETICAL DATA
VARIATIONS
WINDOWS