Research of thermal efficiency of envelope structures from wood-cement composites
Abstract
The task of reducing energy consumption and operating costs of buildings and structures is a prerequisite for the development of energy-saving technologies and materials. Increased energy efficiency is achieved by reducing heat loss through envelope structures. The technology for the production of wood-cement composite materials is of great importance from an engineering point of view, as well as a technology for the disposal of wood waste, which has environmental attractiveness. In the course of the research, the specific heat losses through the envelope structure and the thermal resistance of the envelope structure made of wood-cement composite in the form of sawdust concrete and arbolite were determined, as well as the influence on the thermal efficiency of the presence of isolated air cavities and inclusions from extruded polystyrene foam in the wall massif. The study was carried out using the Elcut software package. The obtained values of the specific heat losses of the design structure are from 19.5 to 51 W / (m2 •·°С), the value of the heat transfer resistance of the envelope structure is 1.07 to 2.9 (m2 ·°С) / W, the indicators depend on the operating conditions and version (one-piece body of the structure, air cavities or inserts from extruded polystyrene foam). The results obtained can be used in the design and operation of building structures.
About the Authors
S. N. Dolmatov
Reshetnev Siberian State University of Science and Technology
Russian Federation
Russian Federation
31, Krasnoyarskii rabochii prospekt, Krasnoyarsk, 660037
P. G. Kolesnikov
Reshetnev Siberian State University of Science and Technology
Russian Federation
Russian Federation
31, Krasnoyarskii rabochii prospekt, Krasnoyarsk, 660037
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Review
For citations:
Dolmatov S.N., Kolesnikov P.G. Research of thermal efficiency of envelope structures from wood-cement composites. Conifers of the boreal area. 2023;41(7):630-634.
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