Bestimmung von feuchtetechnischen Materialparametern ausgewählter Baumaterialien für die rechnerische Bewertung von Baukonstruktionen unter den Bedingungen in der Slowakei

Vertaľ, Marián; Ďurica, Pavol

doi:10.1002/bapi.200910050

Cited by 9 publications

(7 citation statements)

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“…Die Kenntnisse der Materialparameter, die in der Simulation verwendet wurden, sind die Schlüsselfaktoren für die korrekte Interpretation der Ergebnisse [8]. Die Porenstrukturparameter stellen den Zusammenhang der bestimmten Die Analyse zeigte, dass die Wärmedämmdicke 14, 17 und 20 cm keinen großen Einfluss auf das Trocknungsverhalten hat und die Bezugsfeuchte zur gleichen Zeit wie im 1.…”

Section: Hygrothermische Stoffkennwerte Für Berechnungunclassified

Fallstudie zum Trocknungsverhalten von Außenwandkonstruktionen aus Porenbeton mit Wärmedämmverbundsystem

et al. 2016

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nents. In addition to that a guideline was written. It contains the minimum time that is necessary to dry all components of the buildings for the most situations. For the investigations a test bench had been built. Different scenarios of the constructions could be tested under real climate conditions of the locations Košice. The scenarios were investigated and the measured data was analysed. The analyses were executed with the simulation program WUFI. The results show that the cellular concrete in combination with the EPS-System needs 28 months to reach the reference humidity w80. The moister effects the u-value of the construction in a negative way. The heat resistance is lower because of the wetness. The averaged influence of the humidity on the effective u-value from the calculated u-value was 20 % in the second heat period. In the third heat period the effective u-value was more than 5 % worse as the calculated. The orientation of the construction and the different thicknesses have a very low influence on the drying process. It is not significant. When mineral wool is used instead of EPS the drying time can be reduced around 50 %. Numeric analyses show that after two months of drying the cellular concrete in combination with EPS reduces the water content by 33 %. When the EPS is installed five months later, the drying time can be reduced by 14 months. This results the same drying time as the mineral wool construction.

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Section: Hygrothermische Stoffkennwerte Für Berechnungunclassified

Fallstudie zum Trocknungsverhalten von Außenwandkonstruktionen aus Porenbeton mit Wärmedämmverbundsystem

et al. 2016

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“…The panels were manufactured in the former Panel Works Plant in Vranov nad Topľou (Hencovce), Slovakia, using Polish technology Unipol in 1964. The samples were taken in November 2006 [3]. The selected material parameters are given in Tab.…”

Section: Autoclaved Aerated Concrete Using Fly Ashmentioning

confidence: 99%

Transient Pulse Method for Measuring of Heat Conductivity of Autoclaved Aerated Concrete

Vertaľ

Katunský

Šimiček

2014

AMR

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The heat conductivity, specific heat and bulk density are the basic material parameters and thus indispensable. There are numbers of methods used for measurement of heat conductivity. However, the non-stationary (transient pulse method) measurements methods are preferred for description of heat conductivity moisture dependence. This article discusses on the establishment dependence of heat conductivity on water content for selected porous building materials by using non stationary measurement methods. Dependence of the thermal conductivity on the water content is necessary for coupled heat, air and moisture (HAM) simulation in building construction.

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“…Water vapor transmission parameters are important parameters, which are needed for simulation of complex heat and water transport in building materials [1], [2], [3]. They describe, how fast water molecules can move through a given material between two spaces with different boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

Water vapor transmission parameters of the Kežmarok sandstone

Jaroš

Vertaľ

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Dynamic complex heat and water transport in building constructions can be calculated using modern simulation software such as Wufi, Delphin, Math, Comsol Multiphysics and other. This software is suitable for the evaluation of the thermal and hygric processes in constructions of historical buildings. Because it includes many important factors such as dynamic boundary conditions, solar radiation, driven rain, ground water, diffusion and others. The heat and water transport parameters of historical materials are needed for simulation of coupled heat and water transport in building materials. The Kežmarok sandstone was chosen for analysis. One of the important material parameters for evaluation of complex heat and water transport in building constructions are water vapor transmission parameters. Vapor transport can be described as water vapor diffusion resistance factor, water vapor diffusion coefficient and diffusion equivalent air layer thickness. The dry cup and wet cup method were used to determine the water vapor transmission parameters of Kežmarok sandstone.

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Bestimmung von feuchtetechnischen Materialparametern ausgewählter Baumaterialien für die rechnerische Bewertung von Baukonstruktionen unter den Bedingungen in der Slowakei

Cited by 9 publications

References 0 publications

Fallstudie zum Trocknungsverhalten von Außenwandkonstruktionen aus Porenbeton mit Wärmedämmverbundsystem

Fallstudie zum Trocknungsverhalten von Außenwandkonstruktionen aus Porenbeton mit Wärmedämmverbundsystem

Transient Pulse Method for Measuring of Heat Conductivity of Autoclaved Aerated Concrete

Water vapor transmission parameters of the Kežmarok sandstone

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