Hygrothermal conditions in the facades of residential buildings in Nuuk and Sisimiut

Friis, Naja Kastrup; Møller, Eva B.; Lading, Tove

doi:10.1016/j.buildenv.2023.110686

Cited by 2 publications

(1 citation statement)

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“…Due to the strong dependency between human well-being, moisture, and mold growth in building envelopes, mold growth becomes a simple criterion in hygrothermal assessment in bio-based or sensitive materials [15]. Naja et al [16] investigated the hygrothermal condition of nine residential building façades in Nuuk and Sisimiut, Denmark. On-site monitored data were compared against the Delphin model (Delphin 6 software, hygrothermal simulation tool).…”

Section: Introductionmentioning

confidence: 99%

Exploring Historical Perspectives in Building Hygrothermal Models: A Comprehensive Review

Jalili,

Ouahbi,

Eid

et al. 2024

Buildings

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The necessity of understanding and simulating hydrological phenomena as well as their interactions and the effect of anthropogenic and climate conditions on the ecosystem have encouraged researchers for years to investigate the moisture transfer in soil. Considering the moisture transfer as an isothermal phenomenon might cause a wrong estimation due to the non-isothermal nature of the moisture movement in porous media. Hygrothermal (coupled heat and moisture transfer) models are quite diverse and are the engine of the various hygrothermal software tools used to analyze the heat and moisture in building envelopes, drying technologies, and many other applications. This paper is a literature survey conducted to provide an overview on the classical hygrothermal models to address the historical perspectives on these models. First, it investigated, from a historical point of view, the challenges behind the development of hygrothermal models as unsaturated flow theories, beginning with Buckingham theory. The non-isothermal nature of moisture was the starting point for researchers to deal with new challenges during mathematical modeling and experimental analysis. In general, the theory of coupled heat and moisture transfer first developed by J.R. Philip and De Vries and the authors in the mid-1950s inspired the novel hygrothermal models, including Sophocleous and Milly’s model, Rode’s model, Künzel’s model, and Grunewal’s model. In a parallel of hygrothermal model developments, the models of Whitaker and Luikov can also be classified as hygrothermal models; they were mostly applied in modeling the phenomenon of drying. The study highlights the application of hygrothermal models in building physics and gathered a summary of international efforts such as Annex 24, Annex 41, and the HAMSTAD project and advancements performed from the classical dew point or steady-state Glaser method. Moreover, this study emphasizes the advantages of the standard of EN 15026 and limitations of the Glaser method. To sum up, hygrothermal models are still under development based on various assumptions of moisture driving potentials and transfer coefficients.

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Section: Introductionmentioning

confidence: 99%