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线聚光菲涅耳集热器的端部损失与补偿 被引量:10

End-loss and compensation of linear fresnel collectors
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摘要 线聚光菲涅耳集热器的端部损失对其光学性能的影响非常重要。基于南北向菲涅耳反射镜场,该文从分析入射太阳光线与反射镜单元跟踪轴线之间的夹角出发,导出了反射光线到达接收器时在南北向偏离的距离(即端部损失)的计算公式。以北纬25°01′为例计算分析了在月平均日、春分秋分日和夏至冬至日的端部损失随反射镜单元焦距、反射镜距接收器的水平距离的变化情况,并通过光线跟踪模拟实验对春分秋分日的计算结果进行验证,两者十分吻合。同时,对端部损失的补偿方法进行了探讨。该研究方法和结果对如何减少线聚光菲涅耳集热器的端部损失具有实际指导作用。 线聚光菲涅耳集热器的端部损失对其光学性能的影响非常重要。基于南北向菲涅耳反射镜场,该文从分析入射太阳光线与反射镜单元跟踪轴线之间的夹角出发,导出了反射光线到达接收器时在南北向偏离的距离(即端部损失)的计算公式。以北纬25°01′为例计算分析了在月平均日、春分秋分日和夏至冬至日的端部损失随反射镜单元焦距、反射镜距接收器的水平距离的变化情况,并通过光线跟踪模拟实验对春分秋分日的计算结果进行验证,两者十分吻合。同时,对端部损失的补偿方法进行了探讨。该研究方法和结果对如何减少线聚光菲涅耳集热器的端部损失具有实际指导作用。
出处 《农业工程学报》 EI CAS CSCD 北大核心 2011年第S1期282-285,共4页 Transactions of the Chinese Society of Agricultural Engineering
关键词 太阳能聚光器 太阳能集热器 线聚光菲涅耳集热器 端部损失 端部损失补偿 solar concentrator solar thermal collector linear Fresnel collector end loss end-effect compensation
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参考文献12

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同被引文献48

  • 1杜春旭,王普,吴玉庭,马重芳.线性菲涅耳聚光镜场辐射量计算方法[J].化工学报,2011,62(S1):179-184. 被引量:9
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  • 3Baum VA, Aparasi RR, Garf BA. High power solar installations [J]. Solar Energy: 1957;1(1):6-12.
  • 4Mills D, Morrison GL. Compact linear Fresnel reflector solar thermal power plants[J]. Solar Energy 2000;68(3) :263-283.
  • 5Dey CJ. [teat transfer aspects of an elevated linear absorber[J]. Solar Energy2004;76(1):243-249.
  • 6H~berle A, Berger M, Luginsland F, Zahler C. Practical experience fresnel collector for process heat applications. In: Proceedings with a linear of the 14th concentrating symposium on concentrated solar power and chemical energy technologies, March 4-7 Las Vegas, Nevada, USA; 2008.
  • 7Ausra (2009), http://www, ausra, com.
  • 8"World First in Solar Power Plant Technology". http://www, novatec-biosol, com/index, php?article id=43&clang=l.
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  • 10丁大伟,蔡伟民.高温太阳光谱选择性吸收涂层计算机模拟[J].太阳能学报,2008,29(11):1353-1358. 被引量:3

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