Combined Heat, Air and Moisture (HAM) Transfer Model for Porous Building Materials
Combined Heat, Air and Moisture (HAM) Transfer Model for Porous Building Materials
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DOI：
10.1177/1744259108098340
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发表时间：
2009-01-01
影响因子：
2
通讯作者：
Mendes, Nathan
中科院分区：
文献类型：
--
作者：
dos Santos, Gerson Henrique;Mendes, Nathan
在建筑科学领域，数学模型的开发旨在以更低的能耗提供更好的室内热舒适度。尽管水分和空气传输会强烈影响建筑物内的温度分布。整个建筑的模拟代码没有考虑多孔材料中的对流空气传输。通过这种方式，本文提出了一种基于温度、气压和水蒸气压力梯度驱动势的热、空气和湿气 (HAM) 传递模型，适用于摆动和索状状态下的固结多孔材料。使用 MTDMA（多对角矩阵算法）针对三个势同时获得了控制方程组的解。总之，结果显示了对流项对通过两层多孔建筑围护结构的 HAM 传输的影响。
In the building science area, mathematical models are developed to provide better indoor thermal comfort with lower energy consumption. Although the fact moisture and air transfer can strongly affect the temperature distribution within constructions. whole-building simulation codes do not take into account the convective air transport in porous materials. In this way, this article presents a heat, air, and moisture (HAM) transfer model based on driving potentials of temperature, air pressure, and water vapor pressure gradients for consolidated porous material in both pendular and funicular states. The Solution of the set of governing equations has been simultaneously obtained using the MTDMA (MuitiTriDiagonal-Matrix Algorithm) for the three potentials. To conclude, results are presented showing the impact of convective terms on the HAM transfer through a two-layer porous building envelope.