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8212431 
Technical Report 
Mean Wind Forces on Parabolic-Trough Solar Collectors 
"Peterka, JA; Sinau, JM; Cermak, JE" 
1980 
120 
"The purpose of this study was to investigate characteristics of mean wind loads produced by airflow in and around several configurations of parabolic trough solar collectors with and without a wind fence. Four basic parabolic shapes were investigated as single units and one shape was studied as part of several array fields. One 1:25 scale model of each parabolic shape was constructed for mounting on a force balance to measure two forces and three moments. The effects of several dominant variables were investigated in this study: wind-azimuth (or yaw), trough elevation (or pitch) angle, array field configuration, and protective wind fence characteristics. All measurements were made in a boundary-layer flow developed by the meteorological wind tunnel at the Fluid Dynamics and Diffusion Laboratory of Colorado State University. Results are presented and discussed. (ERA citation 05:027166)" 
Parabolic trough collectors | Aerodynamics | Boundary layers | Configuration | Data | Distributed collector power plants | Graphs | Inclination | Orientation | Scale models | Tables | Turbulence | Velocity | Wind loads | Wind tunnels | ERDA/141000 | ERD