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ISSN 0254-0096 CN 11-2082/K

太阳能学报 ›› 2022, Vol. 43 ›› Issue (10): 126-132.DOI: 10.19912/j.0254-0096.tynxb.2021-0272

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二次反射多碟太阳能聚光器设计与性能分析

许宏宇, 许诚, 吴礼宁, 杨勇平   

  1. 华北电力大学能源动力与机械工程学院,北京 102206
  • 收稿日期:2021-03-03 出版日期:2022-10-28 发布日期:2023-04-28
  • 通讯作者: 许 诚(1987——),男,博士、副教授,主要从事太阳能热利用、发电系统集成方面的研究。xucheng@ncepu.edu.cn
  • 基金资助:
    国家自然科学基金重大项目(52090060)

DESIGN AND PERFORMANCE ANALYSIS OF SECONDARY REFLECTIVE MULTI-DISH SOLAR CONCENTRATOR

Xu Hongyu, Xu Cheng, Wu Lining, Yang Yongping   

  1. School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China
  • Received:2021-03-03 Online:2022-10-28 Published:2023-04-28

摘要: 设计一种小规模的光线向下式焦点固定的多碟聚光集热系统,其特点是焦点固定,光线向下汇聚,吸热器开口向上,并提出该系统的追踪方式。通过对一次镜场和二次反射镜的分析和优化设计,使设计工况下吸热器入口的平均能流密度达到420 kW/m2,光学效率为87.4%,可为实现光线向下式焦点固定聚光系统的发展和优化提供技术方案。

关键词: 太阳能聚光热器, 定日镜, 光学系统, 二次反射, 性能分析

Abstract: A small-scale beam-down solar concentrator with multi-disc is designed. At the same time, the tracking method of the system is proposed in this study. The system has the characteristics that the concentrated sunlight is delivered to the ground and the receiver entrance is arranged upwards. Through the analysis and optimization design of the performance of the primary mirror field and the secondary mirror, the average energy flow density of the receiver can reach 420 kW/m2 with the optical efficiency of 87.4% under the design conditions, which provides a technical solution for the development and optimization of the beam-down focus fixed concentrator system.

Key words: solar concentrator, heliostats, optical system, secondary reflection, performance analysis

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