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首页> 外文期刊>Energy and Buildings >Thermal delay provided by floors containing layers that incorporate expanded cork granule waste
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Thermal delay provided by floors containing layers that incorporate expanded cork granule waste

机译：地板含有包含膨胀的软木颗粒废物的层所提供的热延迟

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摘要

This paper reports the computation of the thermal delay provided by concrete floors built with layers of cork and lightweight screed that incorporate expanded cork granule waste. The heat transfer by conduction across these multilayer systems is simulated analytically under unsteady boundary conditions. The thermal delay is computed for multilayer concrete floors with'varying numbers of layers and layer thicknesses. The mass density and thermal conductivity of the various materials were determined experimentally. Given its heterogeneity, the specific heat of the lightweight screed was obtained indirectly using both the experimental results and the analytical model. The results obtained show the potential of these composites in applications for increasing the thermal performance of concrete floors, in particular the thermal delay and thermal resistance. The results show that the contribution of the insulating lightweight screed material's properties to thermal delay is more relevant in systems composed of few layers. The constructive solutions composed of a greater number of layers present higher thermal delay value.
机译：本文报告了由软木和轻质熨平板组成的混凝土地板的热延迟的计算结果，这些软木和轻质熨平板结合了膨胀的软木颗粒废物。在不稳定的边界条件下，通过模拟模拟了跨这些多层系统的传导传热。计算具有不同层数和层厚度的多层混凝土地板的热延迟。通过实验确定了各种材料的质量密度和热导率。考虑到其异质性，可同时使用实验结果和分析模型间接获得轻质熨平板的比热。获得的结果表明这些复合材料在提高混凝土地板的热性能，特别是热延迟和热阻方面的应用潜力。结果表明，在由几层组成的系统中，隔热轻质熨平板材料的特性对热延迟的影响更为显着。由更多层组成的建设性解决方案具有更高的热延迟值。

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  • 来源
    《Energy and Buildings》 |2014年第ptaa期|611-619|共9页
  • 作者

    A.Tadeu; A. Moreira; J. Antonio; N.Simoes; I.Simoes;

  • 作者单位

    Department of Civil Engineering, Faculty of Sciences and Technology, University of Coimbra, Polo Ⅱ, Rua Luis Reis Santos, 3030-788 Coimbra, Portugal;

    Polytechnic Institute of Tomar, Campus Tomar, Quinta do Contador, 2300-313 Tomar, Portugal;

    Department of Civil Engineering, Faculty of Sciences and Technology, University of Coimbra, Polo Ⅱ, Rua Luis Reis Santos, 3030-788 Coimbra, Portugal;

    Department of Civil Engineering, Faculty of Sciences and Technology, University of Coimbra, Polo Ⅱ, Rua Luis Reis Santos, 3030-788 Coimbra, Portugal;

    ITeCons, Rua Pedro Hispano, 3030-289 Coimbra, Portugal;

  • 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

    Transient heat conduction; Thermal delay; Analytical solutions; Frequency domain; Building multilayer floors; Expanded cork;

    机译：瞬态热传导热延迟;分析解决方案;频域建筑多层地板;膨胀软木;

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