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Journal of Porous Media
Импакт фактор: 1.49 5-летний Импакт фактор: 1.159 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN Печать: 1091-028X
ISSN Онлайн: 1934-0508

Выпуски:
Том 22, 2019 Том 21, 2018 Том 20, 2017 Том 19, 2016 Том 18, 2015 Том 17, 2014 Том 16, 2013 Том 15, 2012 Том 14, 2011 Том 13, 2010 Том 12, 2009 Том 11, 2008 Том 10, 2007 Том 9, 2006 Том 8, 2005 Том 7, 2004 Том 6, 2003 Том 5, 2002 Том 4, 2001 Том 3, 2000 Том 2, 1999 Том 1, 1998

Journal of Porous Media

DOI: 10.1615/JPorMedia.v15.i8.80
pages 793-804

NUMERICAL SIMULATION OF TRANSIENT MOISTURE TRANSPORT FOR HYGROSCOPIC INERTIA ASSESSMENT

Nuno M. M. Ramos
Laboratório de Física das Construções (LFC), Departamento de Engenharia Civil, Universidade do Porto
Angela Sacic Kalagasidis
Chalmers University of Technology, Dep. Of Building Physics, S-412 96 Guteborg, Sweden
V. P. de Freitas
CONSTRUCT-LFC, Departamento de Engenharia Civil, Universidade do Porto Rua Dr. Roberto Frias, s/n; 4200-465 Porto, Portugal
J.M.P.Q. Delgado
CONSTRUCT-LFC, Departamento de Engenharia Civil, Universidade do Porto Rua Dr. Roberto Frias, s/n; 4200-465 Porto, Portugal

Краткое описание

The finishing layers of walls and ceiling may be important contributors to a room's hygroscopic inertia and therefore reduce peak values of relative humidity variation. The precise hygric simulation of the surface layers can be important for improving the design of these building elements. This paper reports the results from systematic simulation of a set of dynamic experiments of transient moisture transfer in the hygroscopic region using HAM-Tools software. The authors use a set of laboratory experiments to verify and correct the modelling assumptions and the basic data used in simulations, to select the most effective strategies for conducting this type of simulation. Previous standard measurements of sorption isotherms and vapor permeability for gypsum-based revetments and applied coatings provided basic material data for numerical simulations. Two types of simulations of actual laboratory tests were then performed: (1) Moisture Buffer Value (MBV) tests for validation of material modelling and (2) flux chamber tests for validation of room air and material coupling. As a means of bringing these concepts closer to practice, the generalization of a daily hygroscopic inertia index application in a simple assessment method is improved and supported by the latter simulations.


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