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Energy saving potential of phase change materials in major Australian cities

机译：澳大利亚主要城市相变材料的节能潜力

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摘要

The potential of phase change materials (PCM) in reducing the heating/cooling energy consumption of residential houses along with several factors influencing the effectiveness of PCM were investigated using EnergyPlus. Simulations were carried out using five different phase change temperature ranges at eight Australian cities which represent six climate zones. It was found that the effectiveness of PCM strongly depends on local weather, thermostat range, PCM layer thickness and surface area. The optimum PCM melting range for lowest energy consumption in each month of the year was found to be far from unique. Different PCM was found to be effective in different times of the year. Depending on local weather, the integration of PCM resulted in 17-23% annual energy savings in the studied house except hot and humid cities like Darwin. For a given amount of PCM, energy saving potential was found to improve further with the increase of applied surface area and decrease of PCM layer thickness up to certain limit beyond which the potential started to decline. The energy saving potential was also found to decrease when the PCM melting point was outside the thermostat range of the corresponding city. The paper also presented the potential effect of climate change on the effectiveness of PCM.
机译：使用EnergyPlus研究了相变材料（PCM）在降低住宅供暖/制冷能耗方面的潜力以及影响PCM有效性的几个因素。在代表六个气候区的八个澳大利亚城市中，使用五个不同的相变温度范围进行了模拟。已经发现，PCM的有效性在很大程度上取决于当地的天气，恒温器范围，PCM层的厚度和表面积。发现一年中每个月的最低能量消耗的最佳PCM熔化范围远非唯一。发现不同的PCM在一年中的不同时间有效。根据当地天气的不同，PCM的集成可以使所研究房屋的年度节能量达到17-23％，除了达尔文这样的高温和潮湿城市。对于给定数量的PCM，发现节能潜力随着施加表面积的增加和PCM层厚度的减小达到一定极限而进一步提高，超过此极限，该潜力开始下降。当PCM熔点超出相应城市的恒温范围时，还发现节能潜力降低。本文还介绍了气候变化对PCM有效性的潜在影响。

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  • 来源
    《Energy and Buildings》 |2014年第8期|192-201|共10页
  • 作者

    Morshed Alam; Hasnat Jamil; Jay Sanjayan; John Wilson;

  • 作者单位

    Centre for Sustainable Infrastructure, Faculty of Science Engineering and Technology, Swinburne University of Technology, Hawthorn,Victoria 3122, Australia;

    Centre for Sustainable Infrastructure, Faculty of Science Engineering and Technology, Swinburne University of Technology, Hawthorn,Victoria 3122, Australia;

    Centre for Sustainable Infrastructure, Faculty of Science Engineering and Technology, Swinburne University of Technology, Hawthorn,Victoria 3122, Australia;

    Centre for Sustainable Infrastructure, Faculty of Science Engineering and Technology, Swinburne University of Technology, Hawthorn,Victoria 3122, Australia;

  • 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

    Phase change materials; PCM; Building energy modelling; EnergyPlus; Thermal energy storage; Energy savings;

    机译：相变材料;PCM;建筑能源建模;EnergyPlus;热能储存;节约能源;

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