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Analysis of the Effects of Strengthening Building Energy Policy on Multifamily Residential Buildings in South Korea

Author

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  • Byung Chang Kwag

    (Center for Housing Environment Research and Innovation of the Korea Land and Housing Institute, Sejong 30065, Korea)

  • Sanghee Han

    (Center for Housing Environment Research and Innovation of the Korea Land and Housing Institute, Sejong 30065, Korea)

  • Gil Tae Kim

    (Center for Housing Environment Research and Innovation of the Korea Land and Housing Institute, Sejong 30065, Korea)

  • Beobjeon Kim

    (Center for Housing Environment Research and Innovation of the Korea Land and Housing Institute, Sejong 30065, Korea)

  • Jong Yeob Kim

    (Center for Housing Environment Research and Innovation of the Korea Land and Housing Institute, Sejong 30065, Korea)

Abstract

The purposes of this study were to overview the building-energy policy and regulations in South Korea to achieve energy-efficient multifamily residential buildings and analyze the effects of strengthening the building design requirements on their energy performances. The building energy demand intensity showed a linear relationship with the area-weighted average U-values of the building envelope. However, improving the thermal properties of the building envelope was limited to reducing the building-energy demand intensity. In this study, the effects of various energy conservation measures (ECMs) on the building-energy performance were compared. Among the various ECMs, improving the boiler efficiency was found to be the most efficient measure for reducing the building-energy consumption in comparison to other ECMs, whereas the building envelope showed the least impact, because the current U-values are low. However, in terms of the primary energy consumption, the most efficient ECM was the lighting power density because of the different energy sources used by various ECMs and the different conversion factors used to calculate the primary energy consumption based on the source type. This study showed a direction for updating the building-energy policy and regulations, as well as the potential of implementing ECMs, to improve the energy performances of Korean multifamily residential buildings.

Suggested Citation

  • Byung Chang Kwag & Sanghee Han & Gil Tae Kim & Beobjeon Kim & Jong Yeob Kim, 2020. "Analysis of the Effects of Strengthening Building Energy Policy on Multifamily Residential Buildings in South Korea," Sustainability, MDPI, vol. 12(9), pages 1-20, April.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:9:p:3566-:d:351214
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    References listed on IDEAS

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    1. Kang, Hyuna & An, Jongbaek & Kim, Hakpyeong & Ji, Changyoon & Hong, Taehoon & Lee, Seunghye, 2021. "Changes in energy consumption according to building use type under COVID-19 pandemic in South Korea," Renewable and Sustainable Energy Reviews, Elsevier, vol. 148(C).
    2. Pedone, Livio & Molaioni, Filippo & Vallati, Andrea & Pampanin, Stefano, 2023. "Energy refurbishment planning of Italian school buildings using data-driven predictive models," Applied Energy, Elsevier, vol. 350(C).
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