Mean and Peak Wind Loads on Heliostats

[+] Author and Article Information
J. A. Peterka, Z. Tan, J. E. Cermak, B. Bienkiewicz

Fluid Mechanics and Wind Engineering Program, Colorado State University, Fort Collins, Colo. 80523

J. Sol. Energy Eng 111(2), 158-164 (May 01, 1989) (7 pages) doi:10.1115/1.3268302 History: Received July 22, 1988; Revised December 20, 1988; Online November 11, 2009


Mean and peak wind loads on flat rectangular or circular heliostats were measured on models in a boundary layer wind tunnel which included an atmospheric surface layer simulation. Horizontal and vertical forces, moments about horizontal axes at the ground level and at the centerline of the heliostat, and the moment about the vertical axis through the heliostat center were measured. Results showed that loads are higher than predicted from results obtained in a uniform, low-turbulence flow due to the presence of turbulence. Reduced wind loads were demonstrated for heliostats within a field of heliostats and upper bound curves were developed to provide preliminary design coefficients.

Copyright © 1989 by ASME
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