A NUMERICAL STUDY OF THE INFLUENCE OF THE HYDRAULIC INTERFACE CONTACT ON THE HYGRIC PERFORMANCE OF A MULTI-LAYERED SYSTEM
Author(s): Vereecken, E. and Roels, S.
Paper category: Conference
Book title: XIII International Conference on Durability of Building Materials and Components - XIII DBMC
Editor(s): Marco Quattrone, Vanderley M. John
Print ISBN: none
Publication year: 2015
Total Pages: 8
Abstract: In the current paper, the hydraulic contact interface in a multi-layered system consisting of a brick in combination with a capillary active interior insulation system is discussed. An overestimation of the inwards moisture flux can induce a high indoor relative humidity, mould growth, etc. In cases of capillary active interior insulation, moisture reaching the capillary active interior insulation could also induce a decrease in thermal resistance. Therefore, knowledge on the impact of the hydraulic interface is important to come to reliable hygrothermal simulations.
In a first part of this paper, the hydraulic contact interface is experimentally studied based on an imbibition experiment. Next, the influence of this hydraulic interface in cases of realistic climatic conditions is numerically studied. As found in a prior study on brick-mortar composites , the significant influence of the hydraulic interface on the moisture transport in an imbibition experiment was not found in cases of realistic climatic conditions.
Online publication: 2015
Publication Type: full_text
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