COMPUTER MODELING OF ENERGY-EFFICIENT JOINTS OF WOOD COMPOSITE PANELS

Main Article Content

Mikhail Lukin
Svetlana Roshchina
Anastasiya Lukina
Vladimir Rimshin

Abstract

High air permeability and the presence of thermal bridges at the junctions of wooden frame wall panels have a significant impact on the thermal balance of the building and its operational characteristics. The importance of improving the energy efficiency of nodal interfaces of panels with a wooden frame is undeniable.


To date, there is no single generally accepted method for calculating heat losses through nodal interfaces of panels with a wooden frame. Based on the analysis carried out, it is necessary to carry out calculations and measurements that allow creating this calculation methodology. To carry out numerical studies, a list of characteristics and parameters affecting their conduct is formulated: the influence of the thickness of a li-ear-discrete inclusion on the heat-protective properties of the panel docking unit; the thermal conductivity characteristics of the material used to fill linear-discrete inclusions affecting the heat flux density of the node interface; consideration of the influence of the outdoor temperature of air depending on different climatic zones on the density of heat flow. The dependences of the heat flux density on the "inner" surface of the experimental samples on the thermal conductivity coefficient of the material of the insulating insert, the width of the insulating insert and the outside air temperature were revealed and the nature of the temperature distribution on the "inner" surface of the prototypes was established. By calculating two-dimensional temperature fields in the cross section of the node, isofields of temperature distribution inside the structure, isofields of heat flux density and its direction, lines of temperature distribution and heat flux density along the inner and outer surfaces are obtained. It was found that the heat flux density in the ribs with heat-insulating inclusions is lower in comparison with solid wood parts by an amount from 13% to 52%.

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How to Cite
Lukin, M., Roshchina, S., Lukina, A., & Rimshin, V. (2024). COMPUTER MODELING OF ENERGY-EFFICIENT JOINTS OF WOOD COMPOSITE PANELS. International Journal for Computational Civil and Structural Engineering, 20(1), 68–80. https://doi.org/10.22337/2587-9618-2024-20-1-68-80
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