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Optical advantages of astigmatic aberration corrected heliostats

 
: Rooyen, W. van de; Schöttl, P.; Bern, G.; Heimsath, A.; Nitz, P.

:

Rajpaul, Vikesh (Ed.):
21st SolarPACES International Conference, SolarPACES 2015. Proceedings : 13-16 October 2015, Cape Town, South Africa
New York, N.Y.: AIP Press, 2016 (AIP Conference Proceedings 1734)
ISBN: 978-0-7354-1386-3
Art. 020026, 9 pp.
International Conference on Solar Power and Chemical Energy Systems (SolarPACES) <21, 2015, Cape Town>
English
Conference Paper
Fraunhofer ISE ()

Abstract
Astigmatic aberration corrected heliostats adapt their shape in dependence of the incidence angle of the sun on the heliostat. Simulations show that this optical correction leads to a higher concentration ratio at the target and thus in a decrease in required receiver aperture in particular for smaller heliostat fields.

: http://publica.fraunhofer.de/documents/N-422311.html