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Study on moisture condensation on the interior surface of buildings in high humidity climate

机译：高湿气候条件下建筑物内表面水分凝结的研究

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摘要

Hot and humid air infiltration would lead to moisture condensation on the interior surface of buildings in high humidity climate, which has a negative influence on the indoor environment and building life. This study aims to expound the transient property of moisture condensation on the interior surface of buildings in high humidity climate, and find the typical places where moisture condensation often occurs by numerical and experimental methods. A numerical model of a test chamber is established, which is used to predict the distribution of heat and humidity due to air infiltration. Simulation results from the application of FLUENT software are compared with the experimental data, and a validation procedure is presented. The effect of outdoor air temperature, humidity ratio and wind speed on the moisture condensation state is investigated. The results prove that these parameters have a significant impact on the start time, duration and magnitude of moisture condensation. Two regression equations are developed from the experimental results, which describe the relationship between the indoor air temperature, humidity and the factors of infiltrated air. Meanwhile, two kinds of dew-proof solutions are proposed. (C) 2017 Elsevier Ltd. All rights reserved.
机译：在高湿度气候下，湿热空气的渗透会导致建筑物内表面的湿气凝结，这对室内环境和建筑物的寿命产生负面影响。这项研究旨在阐明高湿度气候下建筑物内表面水分凝结的瞬态特性，并通过数值和实验方法找出水分凝结经常发生的典型场所。建立测试室的数值模型，该模型用于预测由于空气渗透而产生的热量和湿度的分布。将FLUENT软件的应用程序的仿真结果与实验数据进行比较，并提出了验证程序。研究了室外空气温度，湿度比和风速对水分凝结状态的影响。结果证明，这些参数对湿气凝结的开始时间，持续时间和强度有重大影响。根据实验结果建立了两个回归方程，描述了室内空气温度，湿度和空气渗透因子之间的关系。同时，提出了两种防露解决方案。 （C）2017 Elsevier Ltd.保留所有权利。

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  • 来源
    《Building and Environment》 |2017年第11期|39-48|共10页
  • 作者

    You Shijun; Li Wenqingping; Ye Tianzhen; Hu Fan; Zheng Wandong;

  • 作者单位

    Tianjin Univ, Sch Environm Sci & Engn, Haihe Educ Area, Tianjin 300350, Peoples R China;

    Tianjin Univ, Sch Environm Sci & Engn, Haihe Educ Area, Tianjin 300350, Peoples R China;

    Tianjin Univ, Sch Environm Sci & Engn, Haihe Educ Area, Tianjin 300350, Peoples R China;

    Tianjin Univ, Sch Environm Sci & Engn, Haihe Educ Area, Tianjin 300350, Peoples R China;

    Tianjin Univ, Sch Environm Sci & Engn, Haihe Educ Area, Tianjin 300350, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Air infiltration; Moisture condensation; Numerical simulation; Dew point;

    机译：空气渗透;水分凝结;数值模拟;露点;

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