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首页> 外文期刊>Energy and Buildings >Numerical and experimental investigation of a PCM-based thermal storage unit for solar air systems
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Numerical and experimental investigation of a PCM-based thermal storage unit for solar air systems

机译：基于PCM的太阳能空气储热器的数值和实验研究

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摘要

A general problem of most solar thermal systems is the need for thermal storage in order to balance supply and demand of heat over a certain period of time. A possibility to employ latent heat of fusion in phase change materials (PCMs) for thermal energy storage in air-based solar thermal systems was investigated using laboratory experiments and numerical simulations. A heat storage unit containing 100 aluminium panels filled with a paraffin-based PCM was used in the investigations. The experiments were carried out in a lab environment with an electric air heater as a heat source. A numerical model of the unit was developed and implemented as a type in the TRNSYS 17 simulation tool. The results of the simulations with the developed model show a good agreement with experimental results. Subsequently, the model was used for a parametric study analysing the influence of certain parameters. The performed investigations showed a potential of the use of latent heat thermal storage in air-based thermal systems with a narrow temperature operation range.
机译：大多数太阳能热系统的普遍问题是需要蓄热以便在一定时间内平衡热量的供需。通过实验室实验和数值模拟，研究了在相变材料（PCM）中使用聚变潜热来存储基于空气的太阳能热系统中的热能的可能性。在研究中使用了一个蓄热单元，该蓄热单元包含100个铝板，并填充了石蜡基PCM。实验是在实验室环境中以电空气加热器作为热源进行的。该单元的数值模型已开发并作为TRNSYS 17仿真工具中的一种类型实现。所开发模型的仿真结果与实验结果吻合良好。随后，该模型用于参数研究，分析了某些参数的影响。进行的研究表明，潜热蓄热技术在温度范围较窄的空气热系统中具有潜在的应用潜力。

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  • 来源
    《Energy and Buildings》 |2014年第ptaa期|488-497|共10页
  • 作者

    Pavel Charvat; Lubomir Klimes; Milan Ostry;

  • 作者单位

    Brno University oftechnology, Faculty of Mechanical Engineering, Energy Institute, Technicka 2896/2, 616 69 Brno, Czech Republic;

    Brno University oftechnology, Faculty of Mechanical Engineering, Energy Institute, Technicka 2896/2, 616 69 Brno, Czech Republic;

    Brno University of Technology, Faculty of Civil Engineering, Institute of Building Structures, Veveri 331/95, 602 00 Brno, Czech Republic;

  • 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

    Thermal storage; Heat storage unit; Latent heat; Phase change materials; Solar air systems;

    机译：储热;储热单元;潜热相变材料;太阳能空气系统;

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