Optimal Heliostat Layout for Concentrating Solar Tower Systems
A methodology to give an optimal layout of a group of heliostats has been developed for concentrating solar tower systems. Given the maximum solar power together with optical parameters, the method determines an optimal configuration of a heliostat field around a tower where reflected beams are focused and a resultant annual solar energy collected. Various optical losses such as cosine factor, and an optical interference such as shadowing and blocking are taken into account in the calculation. Furthermore, spillage is considered due to dilution of light at a receiver collector that is derived from effects of a finite solar disk and various errors inherent in optical hardware and control. It is found the spillage becomes significant at heliostats located in a distance from the tower farther than four times of tower height and dominates the configuration of the optimal heliostat layout.
Concentrating solar power Beam down system Heliostat field Spillage Shadowing Blocking Cosine factor
Motoaki UTAMURA Yutaka TAMAURA Minoru YUASA Rina KAJITA Takashi YAMAMOTO
Tokyo Institute of Technology, 2-12-1 Ookayama Meguro-ku Tokyo 152-8550 Japan Solar Hytech Inc. 3-18-14 Shin-Yokohama, Kouhoku-ku, Yokohama 222-0033 Japan
国际会议
2007杭州国际动力工程会议(The International Conference on Power Engineering 2007)
杭州
英文
2007-10-23（万方平台首次上网日期，不代表论文的发表时间）