Water vapour diffusion resistance of larch (Larix decidua) bark insulation panels and application considerations based on numeric modelling

Günther Kain; Bernhard Lienbacher; Marius Catalin Barbu; Sascha Senck; Alexander Petutschnigg

doi:10.1016/j.conbuildmat.2017.12.212

Water vapour diffusion resistance of larch (Larix decidua) bark insulation panels and application considerations based on numeric modelling

Günther Kain, Bernhard Lienbacher, Marius Catalin Barbu, Sascha Senck, Alexander Petutschnigg

Research Center Wels

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

16 Citations (Scopus)

Abstract

This paper focuses on the vapour diffusion resistance of light particleboard produced from larch (Larix decidua) bark for thermal insulation applications. The influence of panel density and particle orientation, as well as particle size was evaluated in this respect. The former proved to have the most important effect. The panels' structure was illuminated by means of computed tomography and used as an input for a structure-based numeric model for vapour diffusion. The model was found to be suitable to describe the mass flow in the panels and was used to propose some optimisation of panel structure to serve for special needs in building engineering.

Original language	English
Pages (from-to)	308-316
Number of pages	9
Journal	Construction and Building Materials
Volume	164
DOIs	https://doi.org/10.1016/j.conbuildmat.2017.12.212
Publication status	Published - 10 Mar 2018

Keywords

Bark insulation composite
Multi-functional thermal insulation
Numeric modelling
Panel structure
Radiography
Water vapour diffusion

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10.1016/j.conbuildmat.2017.12.212

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abstract = "This paper focuses on the vapour diffusion resistance of light particleboard produced from larch (Larix decidua) bark for thermal insulation applications. The influence of panel density and particle orientation, as well as particle size was evaluated in this respect. The former proved to have the most important effect. The panels' structure was illuminated by means of computed tomography and used as an input for a structure-based numeric model for vapour diffusion. The model was found to be suitable to describe the mass flow in the panels and was used to propose some optimisation of panel structure to serve for special needs in building engineering.",

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AU - Lienbacher, Bernhard

AU - Barbu, Marius Catalin

AU - Senck, Sascha

AU - Petutschnigg, Alexander

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AB - This paper focuses on the vapour diffusion resistance of light particleboard produced from larch (Larix decidua) bark for thermal insulation applications. The influence of panel density and particle orientation, as well as particle size was evaluated in this respect. The former proved to have the most important effect. The panels' structure was illuminated by means of computed tomography and used as an input for a structure-based numeric model for vapour diffusion. The model was found to be suitable to describe the mass flow in the panels and was used to propose some optimisation of panel structure to serve for special needs in building engineering.

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KW - Multi-functional thermal insulation

KW - Numeric modelling

KW - Panel structure

KW - Radiography

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JO - Construction and Building Materials

JF - Construction and Building Materials

ER -

Water vapour diffusion resistance of larch (Larix decidua) bark insulation panels and application considerations based on numeric modelling

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Keywords

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