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Durability Analysis of Building Exterior Thermal Insulation System in Hot Summer and Cold Winter Area Based on ANSYS

Author

Listed:
  • Zhijia Huang

    (School of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan 243032, China)

  • Yadong Sun

    (School of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan 243032, China)

  • Lin Gan

    (Zhejiang Modern Architectural Design & Research Institute Co., Ltd., Hangzhou 310007, China)

  • Guo Liu

    (School of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan 243032, China)

  • Yang Zhang

    (School of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan 243032, China)

  • Tao Zhou

    (School of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan 243032, China)

Abstract

External thermal insulation systems often have durability problems, including cracking, hollowing, and falling off, which seriously affect safety and energy-saving effects. Based on finite element theory and using ANSYS software, this paper studies the distribution law of the temperature field and temperature stress of the external thermal insulation system. It was found that, compared with an uninsulated wall, the temperature stress of the substrate in summer was reduced by 52.9%, and the temperature stress of the substrate in winter was reduced by 50.9%. The temperature stress is mainly concentrated in the middle position of the external wall insulation system, and the middle of the wall can appear as a hollow drum and fall off. When the temperature of the external wall surface is 60 °C, the maximum temperature stress of the insulation system is 2.46 MPa, compared with the external wall surface of 70 °C—a decrease of 22.2%; the maximum temperature stress on the substrate is 0.46 MPa—a decrease of 20.7%. When the temperature of the outer wall surface is 50 °C, the maximum temperature stress suffered by the insulation system is 1.75 MPa, compared with the outer wall surface of 70 °C—a decrease of 44.4%. Meanwhile, the maximum temperature stress suffered by the substrate is 0.34 MPa—a decrease of 41.4%. This paper investigates and numerically simulates the durability of external wall insulation systems for buildings in hot summer and cold winter regions, and studies the durability of EPS insulation, which can provide guidance for other insulation material design and durability studies.

Suggested Citation

  • Zhijia Huang & Yadong Sun & Lin Gan & Guo Liu & Yang Zhang & Tao Zhou, 2022. "Durability Analysis of Building Exterior Thermal Insulation System in Hot Summer and Cold Winter Area Based on ANSYS," Sustainability, MDPI, vol. 14(9), pages 1-11, May.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:9:p:5702-:d:811271
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    References listed on IDEAS

    as
    1. Ying Zhang & Jian Kang & Hong Jin, 2018. "A Review of Green Building Development in China from the Perspective of Energy Saving," Energies, MDPI, vol. 11(2), pages 1-18, February.
    2. Kuang-Sheng Liu & Xiao-Feng Zheng & Chia-Hsing Hsieh & Shin-Ku Lee, 2021. "The Application of Silica-Based Aerogel Board on the Fire Resistance and Thermal Insulation Performance Enhancement of Existing External Wall System Retrofit," Energies, MDPI, vol. 14(15), pages 1-19, July.
    3. Fan Zhang & Yanbing Ju & Ernesto D.R. Santibanez Gonzalez & Aihua Wang & Peiwu Dong & Mihalis Giannakis, 2020. "A new framework to select energy-efficient retrofit schemes of external walls: A case study," Post-Print hal-03102999, HAL.
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