摘要
基于平板玻璃镜反射聚光获得等光强分布的方法，提出了折平板反射聚光太阳能系统的设计方案。推导了平行光聚光公式，可在给定接收截面宽度、倾角和安装高度时，给出一定聚光比所需的反射板数量、宽度、倾角及坐标位置；建立了CCD法测量能流密度分布的测试平台以及聚光光伏实验装置，并对折平板聚光系统进行了实验研究。结果表明，折平板玻璃镜聚光系统可以得到较为均匀的辐射能流密度，并且系统的发电效率也较高。
Based on the method of obtaining iso-intensity distribution by using plate mirror, the zigzag-plate reflective concentrating solar energy system is proposed. The concentrating formulas for the parallel solar incident rays are derived. As the position （including the tilt angle and the distance on the vertical direction） and the width of the receiver plane are known, the amount of the plate mirror and the width of each mirror as well as the tilt angle and the position will be evaluated. Experimental device has been set up to test the flux density distribution on the cell plane of the concentrating system using CCD method, and the photovoltaic performance experiment has also been carried out. The experimental results show that the uniformity of the flux density distribution and the photovoltaic conversion efficiency of the zigzag-plate mirror concentrating system are superior to that of the conventional parabolic trough system.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2010年第6期917-920,共4页
Journal of Engineering Thermophysics
基金
国家自然科学重点基金资助项目(No.50736005)
关键词
太阳能利用
聚光系统
均匀能流密度
平板玻璃镜
solar energy utilization
concentrating system
uniform flux density
plate mirror
