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Detailed Office Building Energy Information Based on In Situ Measurements

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  • Seung-Yeong Song

    (Department of Architectural & Urban Systems Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea)

  • Hye-Sun Jin

    (Department of Architectural & Urban Systems Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea)

  • Soo-Yeon Ha

    (Department of Architectural & Urban Systems Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea)

  • Sung-Im Kim

    (Department of Architectural & Urban Systems Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea)

  • You-Jeong Kim

    (Department of Architectural & Urban Systems Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea)

  • Soo-Jin Lee

    (Department of Architectural & Urban Systems Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea)

  • In-Ae Suh

    (Department of Architectural & Urban Systems Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Korea)

Abstract

Energy consumption in the building sector has been continuously increasing, and energy conservation in this sector has become critical for achieving the national goal of reducing greenhouse gas emissions. In South Korea, information on energy sources (electricity, gas, district heating, etc.) is provided, but detailed energy use information, such as space heating, space cooling, domestic hot water (DHW) and lighting, is insufficient to establish a specific action plan for energy savings. Energy use information by end-use can be acquired through actual measurements in close proximity to actual energy use. This information reflects the effects of complex elements such as building operations and residential characteristics, but it is also insufficient. This study presents statistical data on energy use intensities (EUIs) and greenhouse-gas-emission intensities by end-use, derived by measured data collected from 48 sample office buildings in representative city from May 2017 to April 2018, and compares those with the U.S. commercial building energy consumption survey (CBECS) 2012 report. The average site EUIs by end-use were in the following order: space heating > electric appliances (typical floors) > space cooling > lighting > air movement > DHW > vertical transportation > city water supply. With regard to the average primary EUIs by end-use, the magnitude relationship between electric appliances (typical floors) and space heating was opposite that of the average site EUIs. Vertical transportation and DHW exhibited almost the same average greenhouse-gas-emission intensities as those of the average annual primary EUIs. The average site EUIs in the CBECS 2012 data were slightly different from those in this study: electric appliances, etc. > space heating > air movement > lighting > space cooling > DHW. The number of office buildings monitored in this study increased until 2019 (the number of total samples: 85), and the intensity data by end-use will be brought up to date through continuous measurement.

Suggested Citation

  • Seung-Yeong Song & Hye-Sun Jin & Soo-Yeon Ha & Sung-Im Kim & You-Jeong Kim & Soo-Jin Lee & In-Ae Suh, 2020. "Detailed Office Building Energy Information Based on In Situ Measurements," Energies, MDPI, vol. 13(12), pages 1-26, June.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:12:p:3050-:d:370866
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    References listed on IDEAS

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    1. Saidur, R., 2009. "Energy consumption, energy savings, and emission analysis in Malaysian office buildings," Energy Policy, Elsevier, vol. 37(10), pages 4104-4113, October.
    2. Jaber, J. O. & Mohsen, M. S. & Al-Sarkhi, A. & Akash, B., 2003. "Energy analysis of Jordan's commercial sector," Energy Policy, Elsevier, vol. 31(9), pages 887-894, July.
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