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首页> 外文期刊>Building and Environment >Dynamic coupling between vapour and heat transfer in wall assemblies: Analysis of measurements achieved under real climate
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Dynamic coupling between vapour and heat transfer in wall assemblies: Analysis of measurements achieved under real climate

机译：墙体组件中的蒸汽与热传递之间的动态耦合：真实气候下的测量分析

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摘要

An experimental wooden-frame house was designed, instrumented and tested to provide measurements suitable for the study of coupled vapour and heat transfer under real climate conditions. In this paper, six different wall assemblies were tested under complex temperature and humidity boundary conditions over more than 3 years. The main objective is to take advantage of the strong outdoor and indoor stresses to emphasise the dynamic coupling between vapour and heat transfer for different wall assemblies. Measurements showed that the heat flux crossing the vertical walls was significantly influenced when a vapour flow crossed insulating materials with high hygroscopic inertia. To further explain this result, a classical numerical model was selected. It was designed to compute coupled transfer at the building scale. A good agreement was obtained for temperature measurements, while higher differences were observed with humidity measurement. An uncertainty analysis was achieved on both experimental and numerical results. It appeared that the uncertainty of the simulation results was one order of magnitude lower than the experimental uncertainty. Finally, the numerical model was used to break down the coupling of vapour and heat transfers. The latent heat effect occurred as the most sizeable effect, which was consistent with the experimental observations.
机译：设计，测试和测试了一个实验性木制房屋，以提供适合研究真实气候条件下的蒸汽和热传递耦合的测量值。在本文中，在超过3年的复杂温度和湿度边界条件下测试了六个不同的墙组件。主要目的是利用强大的室外和室内应力来强调不同壁组件的蒸汽与热传递之间的动态耦合。测量表明，当蒸汽流以高吸湿性穿过绝缘材料时，穿过垂直壁的热通量受到显着影响。为了进一步解释该结果，选择了经典数值模型。它旨在计算建筑物规模上的耦合传递。温度测量获得了很好的一致性，而湿度测量则观察到更高的差异。对实验和数值结果均进行了不确定性分析。看来，仿真结果的不确定度比实验不确定度低一个数量级。最后，数值模型被用来打破蒸汽和热传递的耦合。潜热效应是最大的效应，与实验观察结果一致。

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  • 来源
    《Building and Environment》 |2015年第5期|129-141|共13页
  • 作者

    Matthieu Labat; Monika Woloszyn; Geraldine Garnier; Jean Jacques Roux;

  • 作者单位

    CETHIL, Universite de Lyon, CNRS, INSA-Lyon, CETHIL, UMR5008, F-69621 Villeurbanne, France,CSTB - Centre Scientifique et Technique du Batiment, 24 Rue Joseph Fourier, 38400, Saint Martin d'Heres, France,Universite de Toulouse, UPS, INSA, LMDC (Laboratoire Materiaux et Durabilite des Constructions), 135, Avenue de Rangueil, F-31077, Toulouse Cedex 04, France,INSAToulouse - Genie Civil, 135 Avenue de Rangueil, 31077, Toulouse CEDEX 04, France;

    LOCIE, Polytech Annecy-Chambery - Campus Scientifique - Savoie Technolac, 73376, Le Bourget-Du-Lac Cedex, France;

    CSTB - Centre Scientifique et Technique du Batiment, 24 Rue Joseph Fourier, 38400, Saint Martin d'Heres, France;

    CETHIL, Universite de Lyon, CNRS, INSA-Lyon, CETHIL, UMR5008, F-69621 Villeurbanne, France;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Coupled transfer; Hygroscopic material; Real climate conditions; Wooden-frame house; Uncertainty;

    机译：联结转让;吸湿材料;实际气候条件;木结构房屋;不确定;

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