A central solar plant based on beam-down optics is composed of a field of heliostats, a tower reflector (hyperboloid mirror) and a ground receiver interfaced at its aperture with one or a cluster of secondary concentrators (CPC). In previous publications a method was presented illustrating the correlation between the tower reflector position and its size on one hand and the geometry, dimensions and reflective area of the secondary concentrator on the other hand, both related to the heliostat field reflective area. Obviously, when one wishes to reduce the size of a tower reflector by locating it closer to the upper focal point, the image created at the lower focus will be broader, resulting in a larger secondary ground concentrator. The present paper describes a method for substantial decrease of the dimensions of the ground secondary concentrator cluster (and, implicitly, the concentrator’s area) via truncation and some geometrical corrections without significant sacrifice of the optical performance. This offers a method for cost effective design of future central solar plants utilizing the beam-down optics.
Skip Nav Destination
ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences
July 19–23, 2009
San Francisco, California, USA
Conference Sponsors:
- Advanced Energy Systems Division and Solar Energy Division
ISBN:
978-0-7918-4890-6
PROCEEDINGS PAPER
Truncation of the Secondary Concentrator (CPC) as Means to Cost Effective Beam-Down System
Akiba Segal,
Akiba Segal
Weizmann Institute of Science, Rehovot, Israel
Search for other works by this author on:
Michael Epstein
Michael Epstein
Weizmann Institute of Science, Rehovot, Israel
Search for other works by this author on:
Akiba Segal
Weizmann Institute of Science, Rehovot, Israel
Michael Epstein
Weizmann Institute of Science, Rehovot, Israel
Paper No:
ES2009-90043, pp. 561-565; 5 pages
Published Online:
September 29, 2010
Citation
Segal, A, & Epstein, M. "Truncation of the Secondary Concentrator (CPC) as Means to Cost Effective Beam-Down System." Proceedings of the ASME 2009 3rd International Conference on Energy Sustainability collocated with the Heat Transfer and InterPACK09 Conferences. ASME 2009 3rd International Conference on Energy Sustainability, Volume 2. San Francisco, California, USA. July 19–23, 2009. pp. 561-565. ASME. https://doi.org/10.1115/ES2009-90043
Download citation file:
1
Views
0
Citations
Related Proceedings Papers
Related Articles
Truncation of the Secondary Concentrator (CPC) as Means to Cost Effective Beam-Down System
J. Sol. Energy Eng (August,2010)
Optical Analysis of a Two Stage XX Simultaneous Multiple Surface Concentrator for Parametric Trough Primary and Flat Absorber With Application in Direct Steam Generation Solar Thermal Plants
J. Sol. Energy Eng (April,2016)
Practical Considerations in Designing Large Scale “Beam Down” Optical Systems
J. Sol. Energy Eng (February,2008)
Related Chapters
Introduction and Definitions
Handbook on Stiffness & Damping in Mechanical Design
Computer Aided Design of Tools, Dies, and Moulds (TDMs)
Computer Aided Design and Manufacturing
The Application of Traditional Chinese Graphics in the Modern Logos
International Conference on Computer Technology and Development, 3rd (ICCTD 2011)