Alignment method for parabolic trough solar concentrators

United States Patent

7,667,833
February 23, 2010
View the Complete Patent at the US Patent & Trademark Office
TOPCAT Solar Cell Alignment & Energy Concentration Technology
TOPCAT Solar Cell Alignment & Energy Concentration Technology
A Theoretical Overlay Photographic (TOP) alignment method uses the overlay of a theoretical projected image of a perfectly aligned concentrator on a photographic image of the concentrator to align the mirror facets of a parabolic trough solar concentrator. The alignment method is practical and straightforward, and inherently aligns the mirror facets to the receiver. When integrated with clinometer measurements for which gravity and mechanical drag effects have been accounted for and which are made in a manner and location consistent with the alignment method, all of the mirrors on a common drive can be aligned and optimized for any concentrator orientation.
Diver; Richard B. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
11/761,396
June 12, 2007
356/138;
G01B 11/26 (20060101);
356/152.2,138 136/246 126/602 372/9
STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under contract no. DE-AC04-94AL85000 awarded by the U.S. Department of Energy to Sandia Corporation. The Government has certain rights in the invention.