Analysis of thermal – moisture problems in massive wooden sandwich structures

Analysis of thermal – moisture problems in massive wooden sandwich structures

Peer-reviewed article not indexed in WoS or Scopus

This article focuses on hygrothermal problems in massive wooden sandwich. Wood in sendwich structures is already artificially dried before processing, and therefore does not further shrink, as it does in the case of log cabins. Analysed sandwich structure is a consist of three layers, and is formed of wooden beam in interior side, thermal insulation and wooden beam in the exterior side. The composition of analysed structure is considered in diferrent thicknes with respect to the required heat transfer coefficient. Massive wooden beam on the exterior side causes troubles which exhibits in the reducing capacity of diffusion of water vapor. It is therefore possible that water vapor condenses on the interface of wood and the thermal insulation under certain boundary conditions. Therefore, it is appropriate to place massive wooden beam closest to the interior side. This solution would improve the balance of the diffusion permeability to water vapor permeating from the interior side to the exterior side.

This article focuses on hygrothermal problems in massive wooden sandwich. Wood in sendwich structures is already artificially dried before processing, and therefore does not further shrink, as it does in the case of log cabins. Analysed sandwich structure is a consist of three layers, and is formed of wooden beam in interior side, thermal insulation and wooden beam in the exterior side. The composition of analysed structure is considered in diferrent thicknes with respect to the required heat transfer coefficient. Massive wooden beam on the exterior side causes troubles which exhibits in the reducing capacity of diffusion of water vapor. It is therefore possible that water vapor condenses on the interface of wood and the thermal insulation under certain boundary conditions. Therefore, it is appropriate to place massive wooden beam closest to the interior side. This solution would improve the balance of the diffusion permeability to water vapor permeating from the interior side to the exterior side.

hygrothermal problems, massive wooden sandwich, diffusion of water vapor

hygrothermal problems, massive wooden sandwich, diffusion of water vapor

DOHNAL, J.; PĚNČÍK, J.

2017

28.01.2016

Applied Mechanics and Materials

Svýcarsko

1662-7482

Applied Mechanics and Materials

1662-7482

Applied Mechanics and Materials

2016

824

Swiss Confederation

563

570

8