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首页> 外文期刊>Energy Conversion & Management >The experimental study of a two-stage photovoltaic thermal system based on solar trough concentration
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The experimental study of a two-stage photovoltaic thermal system based on solar trough concentration

机译：基于太阳谷浓度的两阶段光伏热力系统实验研究

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摘要

A two-stage photovoltaic thermal system based on solar trough concentration is proposed, in which the metal cavity heating stage is added on the basis of the PV/T stage, and thermal energy with higher temperature is output while electric energy is output. With the 1.8 m~2 mirror PV/T system, the characteristic parameters of the space solar cell under non-concentrating solar radiation and concentrating solar radiation are respectively tested experimentally, and the solar cell output characteristics at different opening widths of concentrating mirror of the PV/T stage under condensation are also tested experimentally. When the mirror opening width was 57 cm, the solar cell efficiency reached maximum value of 5.21%. The experimental platform of the two-stage photovoltaic thermal system was established, with a 1.8 m~2 mirror PV/T stage and a 15 m~2 mirror heating stage, or a 1.8 m~2 mirror PV/T stage and a 30 m~2 mirror heating stage. The results showed that with single cycle, the long metal cavity heating stage would bring lower thermal efficiency, but temperature rise of the working medium is higher, up to 12.06 ℃ with only single cycle. With 30 min closed multiple cycles, the temperature of the working medium in the water tank was 62.8 ℃, with an increase of 28.7 ℃, and thermal energy with higher temperature could be output.
机译：提出了一种基于太阳槽集中度的两阶段光伏热力系统，其中在PV / T阶段的基础上增加了金属腔加热阶段，输出高温热能，同时输出电能。在1.8 m〜2反射镜PV / T系统中，分别对空间太阳电池在非聚光太阳辐射和聚光太阳辐射下的特性参数进行了实验测试，并在聚光镜的不同开口宽度处得到了太阳能电池的输出特性。冷凝下的PV / T级也进行了实验测试。当镜子开口宽度为57cm时，太阳能电池效率达到最大值5.21％。建立了两级光伏热系统实验平台，其平台为1.8 m〜2镜面PV / T台和15 m〜2镜面加热台，或1.8 m〜2镜面PV / T台和30 m 〜2镜加热阶段。结果表明，在单循环下，较长的金属腔加热阶段会带来较低的热效率，但工作介质的温升较高，仅单循环时最高可达12.06℃。经过30分钟的多次封闭循环，水箱中工作介质的温度为62.8℃，升高了28.7℃，可以输出较高温度的热能。

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  • 来源
    《Energy Conversion & Management》 |2014年第10期|410-417|共8页
  • 作者

    Lijun Tan; Xu Ji; Ming Li; Congbin Leng; Xi Luo; Haili Li;

  • 作者单位

    Solar Energy Research Institute, Yunnan Normal University, Kunming 650500, Yunnan, China;

    Solar Energy Research Institute, Yunnan Normal University, Kunming 650500, Yunnan, China;

    Solar Energy Research Institute, Yunnan Normal University, Kunming 650500, Yunnan, China;

    Solar Energy Research Institute, Yunnan Normal University, Kunming 650500, Yunnan, China;

    Solar Energy Research Institute, Yunnan Normal University, Kunming 650500, Yunnan, China;

    Solar Energy Research Institute, Yunnan Normal University, Kunming 650500, Yunnan, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Trough concentration; Solar energy; Photovoltaic/thermal; Experimental study;

    机译：谷浓度太阳能;光伏/热能;实验研究;

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