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CFD and Statistical Analysis of the Impact of Surface Physical Parameters on the Thermal Resistance of Layered Partitions in ETICS Systems

Author

Listed:
  • Arkadiusz Urzędowski

    (Faculty of Mathematics and Information Technology, Lublin University of Technology, Nadbystrzycka 38, 20-618 Lublin, Poland)

  • Andrzej Sachajdak

    (Department of Thermal Technology, Silesian University of Technology, Konarskiego 22, 44-100 Gliwice, Poland)

  • Arkadiusz Syta

    (Faculty of Mathematics and Information Technology, Lublin University of Technology, Nadbystrzycka 38, 20-618 Lublin, Poland)

  • Jacek Zaburko

    (Faculty of Mathematics and Information Technology, Lublin University of Technology, Nadbystrzycka 38, 20-618 Lublin, Poland)

Abstract

In the article, the authors attempted to analyze the impact of such materials factors as surface emissivity, surface roughness, air gap thickness, and type of concrete on heat transport in the microstructure of vertical multilayer building walls. The surface analysis conducted using three-dimensional modeling tools provided information about the formation of its microstructure before and after the application of a reflection-smoothing coating, which has a direct impact on the emissivity of the surface and was reduced from 0.93 to 0.29. Thermal analyses demonstrated that after applying the reflective coating, thermal resistance increased significantly in the air gap, by approximately 86%, which resulted in a 28% improvement of the evaluated walls samples. The studies have shown that increasing the gap thickness between concrete and thermal insulation results in a thermal resistance increase. It is feasible to enhance the thermal insulation of walls while simultaneously reducing their thickness, a development that holds significant potential for application in the production of prefabricated sandwich panels. The statistical analyzes performed showed significant differences between the analyzed configurations.

Suggested Citation

  • Arkadiusz Urzędowski & Andrzej Sachajdak & Arkadiusz Syta & Jacek Zaburko, 2024. "CFD and Statistical Analysis of the Impact of Surface Physical Parameters on the Thermal Resistance of Layered Partitions in ETICS Systems," Energies, MDPI, vol. 18(1), pages 1-19, December.
    • Handle: RePEc:gam:jeners:v:18:y:2024:i:1:p:107-:d:1556987
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    References listed on IDEAS

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    1. Surakit Thongsuk & Panapong Songsukthawan & Praikanok Lertwanitrot & Santipont Ananwattanaporn & Suntiti Yoomak & Chaichan Pothisarn, 2024. "Impact of Building Envelope Materials on Energy Usage and Performance of Evaporative Cooling System in Residential Building," Energies, MDPI, vol. 17(15), pages 1-27, July.
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