PLANNING OF AN EXPERIMENT TO STUDY THE INFLUENCE OF THE CONSTRUCTIVE DESIGN OF THE JOINT JOINT ON THE THERMAL RESISTANCE OF BUILDING ENCLOSURES
DOI:
https://doi.org/10.31649/2311-1429-2024-2-105-111Keywords:
energy efficiency, junction, cold bridges, multifactorial experiment, insulation, thermal insulation material, thermal resistance.Abstract
Reducing the value of linear heat transfer coefficients is a relevant direction in the context of increasing the thermal resistance of enclosing structures to increase the energy efficiency of the building. Modern technologies and heat-insulating materials open up new opportunities for improving the design of junction nodes, making this direction an integral part of modern construction.
The article examines the factors that affect the constructive design of the junction nodes of the building and their influence on the thermal resistance of enclosing structures. The emergence of "cold bridges" is directly related to the materials used in the junctions and the design features. The characteristics of the thermal insulation material play an important role in improving the thermal resistance of external enclosing structures. Today, there are a large number of insulation materials with different properties and different costs. Therefore, taking this into account, it is necessary to choose the most optimal design of the junction. In this regard, a multifactorial experiment was planned to study the influence of the structural design of the junction on the thermal resistance of the structure.
The most significant factors affecting the thermal resistance of the thermal insulation structure were selected: the thickness of the thermal insulation material, its thermal conductivity coefficient, the thickness and thermal conductivity of the wall material. The influence of the type of thermal insulation material and its properties on the values of linear heat transfer coefficients was studied.
References
DBN V.2.6-31:2021. Thermal insulation and energy efficiency of buildings. [Actual from 09/01/2022]. Official edition. Kyiv: Minregion of Ukraine, 2022. 23 p..
2. Ratushnyak G.S., Ocheretny A. M., Materynska O. Yu. Increasing energy efficiency of multi-storey buildings by improving the junction points of enclosing structures. Modern technologies, materials and structures in construction.. 2017. No. 2. P. 8.
Pankevych O. D., Mykolayenko V. V., Pankevych V. V. The influence of design solutions of nodal connections (places of adjacency of structures) on the energy efficiency of the building. Modern technologies, materials and structures in construction. 2019. p. 20-29.
Ratushnyak G. S., Materynska O. Yu., Ocheretny A. M. Ways to reduce the negative impact of heat-conducting inclusions during the operation of the building: materials of the scientific and technical conference, Vinnytsia, March 14-23, 2018, Vinnytsia, 2018. p. 2251-2253.
Method of insulating the junction of a balcony slab: pat. 142300 Ukraine. No. u 2019 12113; application. 21.12.2019; publ. 05/25/2020, Bull. No. 10. 4 p.
Method of insulation of the junction of the floor in the technical attic: pat. 139606 Ukraine. No. u 2019 07036; appl. 06/24/2019; publ. 01/10/2020, Bull. No. 1. 4 p.
Shtovba S. D., Galushchak A. V. Identification of multifactorial dependencies using knowledge bases. Laboratory practical: electronic textbook. Vinnytsia. VNTU, 2015. 96 p.
Ratushnyak G. S., Goryun O. Yu. Planning an experiment to study factors affecting the thermal resistance of enclosing structures during their thermal modernization. Modern technologies, materials and structures in construction.. 2019. No. 2. P. 66.
Goloskokov O. E. Fundamentals of regression analysis. Textbook. Kharkiv, NTU "KhPI", 2008. 91 p.
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