Dubois, Samuel
[ULg]
Evrard, Arnaud
[UCL]
Lebeau, Frédéric
[ULg]
Materials with high moisture exchange capacity may have a strong impact on indoor climate conditions as well as building energy performance. Crop-based materials, characterized by their high porosity and hygroscopicity, belong to this category. Modeling their hygrothermal behavior accurately is thus particularly relevant for appropriate building design. A COMSOL Multiphysics transient heat air and moisture model is developed in this article to simulate moisture exchange between a lime–hemp concrete block and surrounding air during a Moisture Buffer Value evaluation test. Results are then compared with the validated heat air and moisture software using performance criteria showing a slight preference for both moisture exchanges and latent heat effect characterization. It offers yet additional advantages in terms of flexibility and transparency as well as further evolution potential.
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Bibliographic reference |
Dubois, Samuel ; Evrard, Arnaud ; Lebeau, Frédéric. Modeling the hygrothermal behavior of biobased construction materials. In: Journal of Building Physics, p. 1-23 (14-jui-2013) |
Permanent URL |
http://hdl.handle.net/2078.1/134955 |