发电技术 ›› 2023, Vol. 44 ›› Issue (2): 229-234.DOI: 10.12096/j.2096-4528.pgt.21070

• 新能源 • 上一篇    下一篇

抛物面槽式太阳能集热器热损失因素研究

徐立1,2,3,4, 孙飞虎1,2,3,4, 李钧1,2,3,4, 张强强2,3   

  1. 1.中国科学院太阳能热利用及光伏系统重点实验室,北京市 海淀区 100190
    2.中国科学院电工研究所,北京市 海淀区 100190
    3.中国科学院大学,北京市 海淀区 100049
    4.北京市太阳能热发电工程技术研究中心,北京市 海淀区 100190
  • 收稿日期:2022-01-15 出版日期:2023-04-30 发布日期:2021-08-13
  • 作者简介:徐立(1984),男,博士,副研究员,研究方向为太阳能集热器、吸热器性能,电子器件散热和电池热管理等,xuli1@mail.iee.ac.cn
    孙飞虎(1980),男,博士,助理研究员,研究方向为太阳能定日镜跟踪质量诊断、定日镜场跟踪校正和聚光能流密度分布测量等,sunfeihu@mail.iee.ac.cn
    李钧(1974),男,博士,助理研究员,研究方向为太阳能热发电及废物清洁处理等,lijun@mail.iee.ac.cn
    张强强(1986),男,博士,副研究员,研究方向为太阳能吸热器性能评价和太阳能热化学等,zhangqiangqiang@mail.iee.ac.cn
  • 基金资助:
    国家重点研究发计划项目(2019YFE0102000)

Study on Heat Loss Factors of Parabolic Trough Solar Collectors

Li XU1,2,3,4, Feihu SUN1,2,3,4, Jun LI1,2,3,4, Qiangqiang ZHANG2,3   

  1. 1.Key Laboratory of Solar Thermal Energy and Photovoltaic System, Chinese Academy of Sciences, Haidian District, Beijing 100190, China
    2.Institute of Electrical Engineering, Chinese Academy of Sciences, Haidian District, Beijing 100190, China
    3.University of Chinese Academy of Sciences, Haidian District, Beijing 100049, China
    4.Beijing Engineering Research Center of Solar Thermal Power, Haidian District, Beijing 100190, China
  • Received:2022-01-15 Published:2023-04-30 Online:2021-08-13
  • Supported by:
    National Key Research and Development Program of China(2019YFE0102000)

摘要:

将太阳能热发电技术与分布式能源系统相结合,有利于加大可再生能源在能源消费结构中的比重。抛物面槽式太阳能集热器是目前太阳能热发电中应用最为广泛的太阳能-热能转化设备,其运行特性决定了太阳能热发电技术与分布式能源系统中其他能源技术是否能够相互协同。因此,针对影响槽式集热器运行特性的热损失,开展了基于现场的规模化实验系统测试工作,验证了所建槽式集热器数学模型,并且进一步应用该模型对真空区残留气体量、风速和吸热体发射率等因素开展了参数比较分析研究。

关键词: 太阳能热发电(STE), 分布式能源系统, 太阳能集热器, 热损失

Abstract:

Combining solar thermal electricity technology with distributed energy system is conducive to increasing the proportion of renewable energy in the energy consumption structure. Parabolic trough solar collectors are currently the most widely used solar-thermal energy conversion equipment in solar thermal electricity. Their operational characteristics determine whether solar thermal electricity technology and other energy technologies in distributed energy systems can cooperate with each other. Aiming at the heat loss affecting the operation characteristics of the trough collectors, this paper carried out the on-site utility-scale experimental system test, then verified the established mathematical model of the trough collectors, and further applied the model to analyze the parameters of the residual gas volume in the vacuum zone, the wind speed, and the emissivity of the absorber.

Key words: solar thermal electricity (STE), distributed energy system, solar collector, heat loss

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