Within the environmental context, several tools based on simulations have been proposed to analyze the physical phenomena of heat and mass transfer in porous materials. However, it is still an open challenge to propose tools that do not require to perform computations to catch the dominant processes. Thus, this article proposes to explore advantages of using a dimensionless analysis by scaling the governing equations of heat and mass transfer. Proposed methodology introduces dimensionless numbers and their nonlinear distortirons. The relevant investigation enables to enhance the preponderant phenomena to (i) compare different categories of materials, (ii) evaluate the competition between heat and mass transfer for each material or (iii) describe the transfer in multi-layered wall configurations. It also permits to define hygrothermal kinetic, geometric and dynamic similarities among different physical materials. Equivalent systems can be characterized in the framework of experimental or wall designs. Three cases are presented for similarity studies in terms of (i) equivalent material length, (ii) time of heat and mass transfer and (iii) experimental configurations. All these advantages are illustrated in the given article considering 49 building materials separated in 7 categories.

在环境范围内，已经提出了几种基于模拟的工具来分析多孔材料中传热和传质的物理现象。但是，提出不需要执行计算即可掌握主导过程的工具仍然是一个开放的挑战。因此，本文建议通过缩放传热和传质的控制方程，探索使用无量纲分析的优势。拟议的方法引入了无量纲数及其非线性失真。相关研究可以增强以下优势现象：（i）比较不同类别的材料，（ii）评估每种材料的传热与传质之间的竞争，或（iii）描述多层壁构造中的转移。它还允许定义不同物理材料之间的湿热动力学，几何和动态相似性。等效系统可以在实验或墙体设计的框架中进行表征。根据（i）等效材料长度，（ii）传热和传质时间以及（iii）实验配置，提出了三种情况进行相似性研究。在给定的文章中，考虑了49种建筑材料（分为7类），说明了所有这些优点。