Thermal and hygric assessment of an inside-insulated brick wall: 2D critical experiment and computational analysis
Auteur(s): |
Václav Kočí
Jan Kočí Jiří Maděra Zbyšek Pavlík Xianglin Gu Weiping Zhang Robert Černý |
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Médium: | article de revue |
Langue(s): | anglais |
Publié dans: | Journal of Building Physics, mai 2018, n. 6, v. 41 |
Page(s): | 497-520 |
DOI: | 10.1177/1744259117750495 |
Abstrait: |
A combined experimental-computational approach is used for the analysis of hygrothermal performance of a brick wall provided with interior thermal insulation system. A 2D laboratory experiment is performed to determine temperature and moisture fields in a characteristic segment of the envelope over a sufficiently long period including cold winter months. Then, a computational model of moisture and heat transport is developed, using an integral two-phase balance equation capable of distinguishing between the particular phases of water and an enthalpy-based heat balance equation. A 2D computational representation of the experiment is used for model calibration and identification of unknown parameters, resulting in a very good agreement of experimental and calculated fields, with R² between 0.9687 and 0.9888. The calibrated model is subsequently used for a long-term hygrothermal assessment of the studied detail to demonstrate the functionality of the interior thermal insulation system, as well as the applicability of the developed model. |
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sur cette fiche - Reference-ID
10519650 - Publié(e) le:
10.12.2020 - Modifié(e) le:
19.02.2021