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Thermal Energy Storage in Copper Foams filled with Paraffin Wax.

机译:填充石蜡的铜泡沫中的热能存储。

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摘要

Phase change materials (PCM) such as paraffin wax are known to exhibit slow thermal response due to their relatively low thermal conductivity. In this study, experiments were carried out to investigate a method of enhancing thermal conductivity of paraffin wax by making use of high porosity open cell metal foams. By adding metal foam, thermal conductivity of PCM's was shown to increase by 16-18 times that of pure paraffin wax. The use of open cell metal foam material for thermal energy storage application was also investigated by designing and testing different thermal energy storage systems (TESS) - with and without metal foam. The effect of copper metal foam on heat transfer during melting and solidification was analysed by determining the convective heat transfer coefficient. Lastly, a numerical code was developed to predict the temperature field within PCM while melting.
机译:已知相变材料(PCM)(例如石蜡)由于其相对较低的热导率而表现出较慢的热响应。在这项研究中,进行了实验以研究一种通过使用高孔隙率的开孔金属泡沫来提高石蜡的导热性的方法。通过添加金属泡沫,PCM的热导率显示为纯石蜡的16-18倍。还通过设计和测试不同的热能存储系统(TESS)(带有和不带有金属泡沫)来研究开孔金属泡沫材料在热能存储应用中的使用。通过确定对流换热系数,分析了铜泡沫金属在熔化和凝固过程中对传热的影响。最后,开发了一个数字代码来预测熔化时PCM内的温度场。

著录项

  • 作者

    Vadwala, Pathik Himanshu.;

  • 作者单位

    University of Toronto (Canada).;

  • 授予单位 University of Toronto (Canada).;
  • 学科 Engineering Mechanical.
  • 学位 M.A.Sc.
  • 年度 2011
  • 页码 147 p.
  • 总页数 147
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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