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Experimental investigation of the performance of an advanced solar air heater using a porous matrix absorber, outdoor testing.

机译:使用多孔基质吸收剂的先进太阳能空气加热器性能的实验研究,室外测试。

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摘要

In much of Canada internal heating for buildings is required for over 70% of the year. Solar energy has the potential to significantly reduce the consumption of non-renewable resources used for heating, while also having a substantial economic benefit. The Canadian climate poses freezing difficulties when using liquid collectors, Using air as the working fluid has the advantage of a simpler design. Solar air heating is already established for applications such as fruit drying, crop drying, green house heating, and space heating.; Conventional solar air heaters operate with efficiencies between 40--50%. The present solar collector was experimentally tested outdoors, operating with an average efficiency of approximately 85%. The high efficiency is achieved using a porous medium to absorb solar energy and by preheating the air before entering the second pass of the collector. The collector proves that it is possible to utilize solar energy for heating buildings efficiently and economically.
机译:在加拿大的大部分地区,一年中超过70%的建筑物需要内部供暖。太阳能有潜力显着减少用于取暖的不可再生资源的消耗,同时还具有可观的经济效益。在使用液体收集器时,加拿大的气候给冷冻带来了困难。使用空气作为工作流体具有设计更简单的优势。已经建立了太阳能空气加热的应用,例如水果干燥,农作物干燥,温室加热和空间加热。常规的太阳能空气加热器以40--50%的效率运行。本太阳能收集器在室外进行了实验测试,其平均效率约为85%。使用多孔介质吸收太阳能并通过在进入收集器的第二遍之前对空气进行预热来实现高效率。收集者证明,可以利用太阳能高效,经济地供暖建筑物。

著录项

  • 作者

    Nugent, Daniel J.;

  • 作者单位

    University of Calgary (Canada).;

  • 授予单位 University of Calgary (Canada).;
  • 学科 Engineering Mechanical.
  • 学位 M.Sc.
  • 年度 2003
  • 页码 104 p.
  • 总页数 104
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 机械、仪表工业;
  • 关键词

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