A Study of Temperature and Humidity Conditions in a New Energy-Efficient Design of a Wall Structure with Air Gaps
Zhangabay N. Tursunkululy T. Utelbayeva A. Abdikerova U. Sultanov M.
March 2025Multidisciplinary Digital Publishing Institute (MDPI)
Modelling
2025#6Issue 1
This manuscript presents a theoretical study of a newly developed energy-efficient external wall structure in comparison with a traditional ventilated facade. To conduct numerical studies based on mathematical models of the heat transfer of water vapor filtration through a multilayer filler structure with ventilated and non-ventilated air gaps, a calculation method was developed that additionally considers the presence of heat-reflecting screens and different variations in the geometric parameters of air gaps and thermal insulation layers. The study results demonstrated that the new energy-efficient multilayer wall structure was 6.1–7.2% more efficient in terms of heat transfer resistance than the traditional one, and due to the presence of heat-reflecting screens, the efficiency increased to 15.2–16.3% depending on the geometric parameters of the air and thermal insulation layers of the wall structure. In addition, in all the considered variants of the filler structure geometry (i.e., with closed and ventilated air gaps), there were water vapor condensation zones, but it was established that according to the value of the inadmissibility of moisture accumulation in multilayer wall structures, over the annual period of operation, the structures complied with the standard climatic conditions of Shymkent. The results of this study thus positively complement the existing catalog of energy-efficient wall structures, and the new wall structure can be used while considering the necessary geometric parameters of air and heat-insulating layers when designing buildings in the corresponding climatic conditions.
air gaps , calculation method , energy efficiency , mathematical model , thermophysical parameters , wall structure
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Department of Architecture and Urban Planning, M. Auezov South Kazakhstan University, Tauke Khan av., 5, Shymkent, 160012, Kazakhstan
Department of Chemistry, M. Auezov South Kazakhstan University, Tauke Khan av., 5, Shymkent, 160012, Kazakhstan
Department of Architecture and Construction Production, Korkyt Ata Kyzylorda University, Saparbayev av., 15, Kyzylorda, 120018, Kazakhstan
Department of Architecture and Urban Planning
Department of Chemistry
Department of Architecture and Construction Production
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