Wind-Induced Heat Losses From Solar Collector Arrays on Flat-Roofed Buildings

[+] Author and Article Information
R. J. Kind, D. Kitaljevich

Department of Mechanical and Aeronautical Engineering, Carleton University, Ottawa, Ontario, Canada, K1S 5B6

J. Sol. Energy Eng 107(4), 335-342 (Nov 01, 1985) (8 pages) doi:10.1115/1.3267702 History: Received March 01, 1984; Online November 11, 2009


This paper presents data for convective heat transfer coefficients on the front surface of a free-standing array of solar collectors mounted on the flat roof of a low warehouse-type building and exposed to the wind. The data were obtained by testing a 1:36 scale model in highly turbulent nonuniform flows which simulated the natural wind. For typical full scale conditions, the heat transfer coefficients are substantially lower than those given by a commonly used correlation. The coefficients are only mildly sensitive to wind direction, location of the array on the roof and characteristics of the wind.

Copyright © 1985 by ASME
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