کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
658762 1458087 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Determination of capillary tortuosity coefficient in calculations of moisture transfer in building materials
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Determination of capillary tortuosity coefficient in calculations of moisture transfer in building materials
چکیده انگلیسی

Parameters characterising the structure of porosity of building material are very difficult to be considered analytically with a sufficient level of accuracy. Nevertheless, the knowledge about the geometric characteristics of the pore-capillary structure of materials is essential for modelling the moisture transfer process. Therefore, we propose the original dependence for determining the coefficient of tortuosity of pores and capillaries which take part in capillary moisture transfer in building materials of homogenous and isotropic porosity structure. The equation was developed on the basis of the general conductivity theory and the capillary theory. A comparative analysis of the proposed, theoretically justified equation, and other equations as well as experimental data shows, that the proposed dependence is the most useful for determining the tortuosity coefficient applied in calculating moisture transfer process in capillary-porous materials.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 56, Issues 1–2, 1 January 2013, Pages 30–34
نویسندگان
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