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Cost Analysis of a Mini-Facet Heliostat

Hall, Colin; Pratt, Rodney; Farrant, David; Corsi, Clothilde; Pye, John; Coventry, Joseph


A significant problem with conventional heliostats is off-axis astigmatism, which increases the spot size at the central receiver, limiting the temperature and efficiency of solar thermal systems. Inspired by low-cost mini-actuators used for car wing mirrors, we examine the economic feasibility of a heliostat with individually adjustable mini-facets to correct astigmatic effects, and we compare three alternative tracking configurations.

CollectionsANU Research Publications
Date published: 2017
Type: Conference paper
Source: Proceedings of the 22nd SolarPACES 2016 International Conference
DOI: 10.1063/1.4984479
Access Rights: Open Access


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