Simulating non-isothermal water vapour transfer : an experimental validation on multi-layered building components

S. Roels; W. Depraetere; J. Carmeliet; H. Hens

doi:10.1177/109719639902300104

Simulating non-isothermal water vapour transfer : an experimental validation on multi-layered building components

S. Roels, W. Depraetere, J. Carmeliet, H. Hens

Research output: Contribution to journal › Article › Academic › peer-review

5 Citations (Scopus)

Abstract

The aim of this study is to validate different analytical relations used in hygrothermal simulations for the material properties. Therefore, a valida tion experiment on four types of flat roofs has been set up at the laboratory. All rele vant material properties of the individual material layers were determined before hand. During the experiment, temperatures, heat fluxes and moisture contents were measured. The measured data were then compared with numerical simulation results. By repeating the simulations with different expressions for the vapour per meability and for the sorption isotherm, the influence of approximate analytic rela tionships was investigated.

Original language	English
Pages (from-to)	17-40
Number of pages	24
Journal	Journal of Thermal Envelope and Building Science
Volume	23
Issue number	1
DOIs	https://doi.org/10.1177/109719639902300104
Publication status	Published - 1999

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abstract = "The aim of this study is to validate different analytical relations used in hygrothermal simulations for the material properties. Therefore, a valida tion experiment on four types of flat roofs has been set up at the laboratory. All rele vant material properties of the individual material layers were determined before hand. During the experiment, temperatures, heat fluxes and moisture contents were measured. The measured data were then compared with numerical simulation results. By repeating the simulations with different expressions for the vapour per meability and for the sorption isotherm, the influence of approximate analytic rela tionships was investigated.",

author = "S. Roels and W. Depraetere and J. Carmeliet and H. Hens",

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AU - Hens, H.

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AB - The aim of this study is to validate different analytical relations used in hygrothermal simulations for the material properties. Therefore, a valida tion experiment on four types of flat roofs has been set up at the laboratory. All rele vant material properties of the individual material layers were determined before hand. During the experiment, temperatures, heat fluxes and moisture contents were measured. The measured data were then compared with numerical simulation results. By repeating the simulations with different expressions for the vapour per meability and for the sorption isotherm, the influence of approximate analytic rela tionships was investigated.

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DO - 10.1177/109719639902300104

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