基于结构特性和反射镜单元安装误差的碟式冷凝器焦点分析

Q4 Physics and Astronomy

光学技术 Pub Date : 2014-01-01 DOI:10.3788/GXJS20144006.0508

颜. Y. Jian, 彭佑多 Peng Youduo, 肖蓉 Xiao Rong, 王旻辉 Wang Minhui, 余佳焕 Yu Jiahuan

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引用次数: 1

摘要

提出了射线追踪区域外包络网格识别方法。对于刚体在空间中的旋转运动，反射镜单元的安装误差被认为是等效的。基于光线追踪法，推导了引入安装误差的聚光镜模型。同时，建立了综合考虑表面误差、跟踪误差等因素的通量分布数学模型。在验证数学模型正确性的基础上编写了Matlab计算程序。以25kw集中器为研究对象，分析了结构特点、安装误差等因素对其流量分布的影响。结果表明:反射镜单元安装误差对能量流分布和密度峰的影响显著，结构特性和尺寸的影响较弱;可适当加大通风间隙，以提高抗风能力。计算结果为太阳能集热器的组合和吸热器的优化设计提供了参考。

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Focus analysis of dish condenser based on structure characteristic and mirror unit installation error

A method of outland envelope and identification of the grid is put forward in the ray tracing area.The mirror unit installation error is thought of equivalent for rigid body rotation movement in the space.Based on ray tracing method,the mirror condenser model which introducing the installation error is deduced.At the sometime,a comprehensive mathematical model about flux distribution is built,which including the surface error,tracking error and other factors.Matlab calculation procedures are compiled on the basis of verifying the correctness of the mathematical model.To put 25 kW concentrator as the research object,the influence of the structural features,installation error and other factors on the flux distribution is analyzed.The results show that the impact of the distribution and the density peak of energy flow by the mirror unit installation error is outstanding,the influence of structure features and the size is weaker.The drafty gap can be appropriately increased to improve the resistance of the wind.The calculation results present a reference for the assemblage of the solar collect and optimal design of heat absorber.

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来源期刊

光学技术 Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

0.60

自引率

0.00%

发文量

6699

期刊介绍： The predecessor of Optical Technology was Optical Technology, which was founded in 1975. At that time, the Fifth Ministry of Machine Building entrusted the School of Optoelectronics of Beijing Institute of Technology to publish the journal, and it was officially approved by the State Administration of Press, Publication, Radio, Film and Television for external distribution. From 1975 to 1979, the magazine was named Optical Technology, a quarterly with 4 issues per year; from 1980 to the present, the magazine is named Optical Technology, a bimonthly with 6 issues per year, published on the 20th of odd months. The publication policy is: to serve the national economic construction, implement the development of the national economy, serve production and scientific research, and implement the publication policy of "letting a hundred flowers bloom and a hundred schools of thought contend".