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作者:

Wang Lu (Wang Lu.) | Yuan Zhongxian (Yuan Zhongxian.) | Zhao Yan (Zhao Yan.) (学者:赵艳) | Guo Zhanquan (Guo Zhanquan.)

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EI Scopus SCIE CSCD

摘要:

The technology of small point-focusing concentrator of solar energy has been developing rapidly in recent years owing to its compact structure and high collecting efficiency. This report presents important developments of small point-focusing concentrator in the past decade. This kind of solar concentrator refers to the parabolic dish concentrator, the point-focusing Fresnel lens, and the Scheffler reflector. Technological advances of these concentrators and the related performances have been presented. There are three main mirror fabrication technologies for dish concentrator, which are high polishing metal, silver-glass mirror and vacuum-membrane. Polymethyl methacrylate is widely used as material in Fresnel lens. Many scholars have proposed new lens shape to improve the uniformity of focusing. The Scheffler reflector has a characteristic of fixed focus, but its design parameters are not perfect so current research focuses on the theoretical calculation of the mirror. In addition, typical applications of the small point-focusing concentrator in photovoltaic system, solar thermal system, solar chemical system, and day-lighting system are summarized. Upon listing the important publications in open literature, a category of main applications of such kind of solar collector is provided based on the working characteristics of the system.

关键词:

application dish Fresnel point-focusing concentrator Scheffler

作者机构:

  • [ 1 ] [Wang Lu]Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Conservat, Beijing 100124, Peoples R China
  • [ 2 ] [Yuan Zhongxian]Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Conservat, Beijing 100124, Peoples R China
  • [ 3 ] [Zhao Yan]Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Conservat, Beijing 100124, Peoples R China
  • [ 4 ] [Guo Zhanquan]Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Conservat, Beijing 100124, Peoples R China

通讯作者信息:

  • [Yuan Zhongxian]Beijing Univ Technol, Beijing Key Lab Heat Transfer & Energy Conservat, Beijing 100124, Peoples R China

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来源 :

JOURNAL OF THERMAL SCIENCE

ISSN: 1003-2169

年份: 2019

期: 5

卷: 28

页码: 929-947

2 . 5 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:52

JCR分区:2

被引次数:

WoS核心集被引频次: 23

SCOPUS被引频次: 24

ESI高被引论文在榜: 0 展开所有

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