相变控温光伏电池组件
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TB34

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Photovoltaics/Phase Change Materials Component with Temperature Controlling Property
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    摘要:

    分别以低温石蜡和聚乙二醇作为相变控温材料与光伏电池结合制备相变控温光伏组件(PV/PCM).实验研究了两种相变材料、聚乙二醇用量以及相变导热结构对组件的控温效果;实验室与现场测试了PV/PCM组件的温度光辐射功率曲线.研究表明,聚乙二醇作为相变控温材料效果更佳;增加相变材料用量,控温时间延长,但两者间并非线性关系;采用钢丝束能有效加强传热效果.聚乙二醇PV/PCM组件的最大冷却度达30 ℃,冷却时间可达6 h,组件的开路电压提高6%,功率提高10%.

    Abstract:

    Photovoltaics and phase change material(PV/PCM) component system was produced through a combination of low melting point paraffin and polyethylene glycol. The experiments studied the temperature control effect of PCM on PV/PCM with different composition and thermal structures. The temperature radiation power curve of PV/PCM system was tested with both laboratorial and field study. The study reveals that temperature controlling period can be lengthened with the increasing PCM content, however no explicit linear relationship is confirmed. The polyethylene glycol is a better temperature controlling PCM and steel wire enhances the heat conduction significantly. The PV/PCM system composed of polyethylene glycol reaches a maximum cooling degree to 30 ℃, cooling period to 6 hours. The open circuit voltage of the system increases by 6%, and the power increases by 10%.

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张晏清,张雄,金诚瀛.相变控温光伏电池组件[J].同济大学学报(自然科学版),2014,42(2):0320~0324

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  • 收稿日期:2013-01-26
  • 最后修改日期:2013-10-25
  • 录用日期:2013-10-08
  • 在线发布日期: 2014-01-13
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