Einfluss von Hohlräumen auf die Wärmeleitfähigkeit von ausgewählten Holzwerkstoffen für den Baueinsatz

Joščák, Matúš; Sonderegger, Walter; Niemz, Peter; Schnider, Thomas; Oppikofer, Reinhard; Lammar, Laura

doi:10.1002/bapi.201200005

Cited by 3 publications

(1 citation statement)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the past decades, several studies focused on the application of the air layers inside the structures and on the reduction of the heat flux via radiation (Alifanov et al 2009 ;Antar and Baig 2009 ). Besides theoretical considerations, the practical measurements and solutions for the praxis were published (Niemz et al 2007 ;Niemz and Sonderegger 2011 ;Jo š č á k et al 2012 ).…”

Section: Introductionmentioning

confidence: 99%

Improved heat insulation system (Mirrorpanel) for construction of wood buildings

Pásztory

2013

Holzforschung

View full text Add to dashboard Cite

Abstract:A new thermal insulation system (Mirrorpanel) based on an effective thermal insulation of the air by multiple heat reflection of the radiation heat flux was produced at the Innovation Center of the University of West Hungary. The system was created for wood frame structure buildings where the units of the framework provide the fixing points. In the panels of the new system, there are narrow air fields with high thermal resistance and the lamellae in the field have low surface emission properties, which reflect a considerable part of heat radiation. This system of heat reflection and the narrow air fields was formed with the help of stretched foils. Based on the results of tests gained from the small and medium-sized insulation panels, a life-size test building was constructed, where the performance and conduct of the Mirrorpanel can be continuously studied.

show abstract

Section: Introductionmentioning

confidence: 99%

Improved heat insulation system (Mirrorpanel) for construction of wood buildings

Pásztory

2013

Holzforschung

View full text Add to dashboard Cite

show abstract

Larch (Larix decidua) bark insulation board: interactions of particle orientation, physical–mechanical and thermal properties

et al. 2017

View full text Add to dashboard Cite

The current trend for sustainable utilisation of limited resources is stimulating the scientific research for previously neglected raw materials that could also be used for new value added products. Bark, which is a natural insulation material of trees, could be used as technical insulation material. This paper focuses on the effects of particle orientation in light larch (Larix decidua) bark insulation boards on their physical-mechanical and thermal properties. The experimental design is based on the variation of the particle orientation (orthogonal or parallel to the panel plane) and the board density (200-500 kg/ m 3 ). The mechanical properties, water absorption, thickness swelling and thermal conductivity of the boards were tested. The results showed a significant influence of the particle orientation and the density on the measured properties of the bark panels. This implies that the bark particle orientation is an important factor when producing insulation panels with specific characteristics. Suggestions for efficient use of bark particleboard are given.

show abstract

Thermophysical Properties of Larch Bark Composite Panels

et al. 2021

View full text Add to dashboard Cite

The effects of using 100% larch bark (Larix decidua Mill) as a raw material for composite boards on the thermophysical properties of this innovative material were investigated in this study. Panels made of larch bark with 4–11 mm and 10–30 mm particle size, with ground bark oriented parallel and perpendicular to the panel’s plane at densities varying from 350 to 700 kg/m3 and bonded with urea-formaldehyde adhesive were analyzed for thermal conductivity, thermal resistivity and specific heat capacity. It was determined that there was a highly significant influence of bulk density on the thermal conductivity of all the panels. With an increase in the particle size, both parallel and perpendicular to the panel´s plane direction, the thermal conductivity also increased. The decrease of thermal diffusivity was a consequence of the increasing particle size, mostly in the parallel orientation of the bark particles due to the different pore structures. The specific heat capacity is not statistically significantly dependent on the density, particle size, glue amount and particle orientation.

show abstract

Einfluss von Hohlräumen auf die Wärmeleitfähigkeit von ausgewählten Holzwerkstoffen für den Baueinsatz

Cited by 3 publications

References 9 publications

Improved heat insulation system (Mirrorpanel) for construction of wood buildings

Improved heat insulation system (Mirrorpanel) for construction of wood buildings

Larch (Larix decidua) bark insulation board: interactions of particle orientation, physical–mechanical and thermal properties

Thermophysical Properties of Larch Bark Composite Panels

Contact Info

Product

Resources

About