摘要
根据太阳运行规律和定日镜及靶标位置分析不同日期太阳入射角的变化,在此基础上,根据科丁顿方程对球面定日镜的反射太阳影像进行了理论分析。讨论了定日镜反射聚光的特点,利用光线追踪原理建立了定日镜反射太阳光并与指定受光面相交的计算机近似模型,对定日镜反射太阳影像进行了计算机仿真。仿真得到的光斑大小与理论分析基本一致。
Heliostat is the concentrating system of a solar thermal tower plant. Based on the celestial movement law, and the positions of heliostat and the target, the incident angles of sunlight at different date for a specific heliostat were ana- lyzed. Cottington equation was used to analyze the image formed by the sphere-type heliostat with the incident angle as a parameter. Based on the principle of ray-tracing, a computer model was developed to simulate the sun image formed by the heliostat at different time. Simulation results were in accordance with that of theoretical analysis.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2010年第10期1304-1310,共7页
Acta Energiae Solaris Sinica
