论文信息 - Optimization of nonimaging focusing heliostat in dynamic correction of astigmatism for a wide range of incident angles.

Optimization of nonimaging focusing heliostat in dynamic correction of astigmatism for a wide range of incident angles.

To overcome astigmatism has always been a great challenge in designing a heliostat capable of focusing the sunlight on a small receiver throughout the year. In this Letter, a nonimaging focusing heliostat with a dynamic adjustment of facet mirrors in a group manner has been analyzed for optimizing the astigmatic correction in a wide range of incident angles. This what is to the author's knowledge a new heliostat is not only designed to serve the purpose of concentrating sunlight to several hundreds of suns, but also to significantly reduce the variation of the solar flux distribution with the incident angle.

Kok-Keong Chong

[1] Abraham Kribus,et al. Comparison of Two Sun Tracking Methods in the Application of a Heliostat Field , 2004 .

[2] Harald Ries,et al. The optics of a two-stage solar furnace , 1990 .

[3] Kok-Keong Chong,et al. Study of residual aberration for non-imaging focusing heliostat , 2003 .

[4] Harald Ries,et al. An astigmatic corrected target-aligned heliostat for high concentration , 1995 .

[5] Li Li,et al. Flux distribution of solar furnace using non-imaging focusing heliostat , 2009 .

[6] E. A. Igel,et al. Optical analysis of solar facility heliostats , 1979 .

[7] Kok Kiong Tan,et al. Report of the first prototype of non-imaging focusing heliostat and its application in high temperature solar furnace , 2002 .

[8] Y. T. Chen,et al. Report on the second prototype of non-imaging focusing heliostat and its application in food processing , 2005 .

[9] L. C. Chen,et al. Non-Imaging, Focusing Heliostat , 2001 .