A flux mapping system able to measure the flux distribution of dish/Stirling systems in planes perpendicular to the optical axis was built and operated at the Plataforma Solar de Almerı´a (PSA). It uses the indirect measuring method with a water-cooled Lambertian target placed in the beam path and a CCD-camera mounted on the concentrator taking images of the brightness distribution of the focal spot. The calibration is made by calculating the total power coming from the dish and relating it to the integrated gray value over the whole measurement area. The system was successfully operated in a DISTAL II stretched membrane dish and in the new EURODISH in order to characterize their beams and improve the flux distribution on their receivers.
Beam Characterization and Improvement with a Flux Mapping System for Dish Concentrators
Contributed by the Solar Energy Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF SOLAR ENERGY ENGINEERING. Manuscript received by the ASME Solar Energy Division, Feb. 2001; final revision, Feb. 2002. Associate Editor: R. Pitz-Paal.
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Ulmer, S., Reinalter , W., Heller , P., Lu¨pfert, E., and Martı´nez, D. (April 24, 2002). "Beam Characterization and Improvement with a Flux Mapping System for Dish Concentrators ." ASME. J. Sol. Energy Eng. May 2002; 124(2): 182–188. https://doi.org/10.1115/1.1464881
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