Mean wind forces on parabolic-trough solar collectors | Zendy

J. A. Peterka | Zendy; J. Sinau | Zendy; Jack E. Cermak | Zendy

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Mean wind forces on parabolic-trough solar collectors

Author(s) -

J. A. Peterka,

J. Sinau,

Jack E. Cermak

Publication year - 1980

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/5275459

Subject(s) - parabolic trough , azimuth , trough (economics) , airflow , meteorology , wind tunnel , wind speed , wind direction , elevation (ballistics) , boundary layer , environmental science , geology , atmospheric sciences , mechanics , physics , geometry , mathematics , thermodynamics , thermal , economics , macroeconomics

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. (WHK)

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