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Energy Consumption Verification of SPD Smart Window, Controllable According to Solar Radiation in South Korea

Author

Listed:
  • Yujin Ko

    (Department of Mechanical Engineering, Graduate School of KyungHee University, Yongin 17104, Korea)

  • Hyogeun Oh

    (Department of Mechanical Engineering, Graduate School of KyungHee University, Yongin 17104, Korea)

  • Hiki Hong

    (Department of Mechanical Engineering, KyungHee University, Yongin 17104, Korea)

  • Joonki Min

    (Department of Mechanical Engineering, KyungHee University, Yongin 17104, Korea)

Abstract

Between 60% and 70% of the total energy load of a house or office occurs through the exteriors of the building, and in the case of offices, heat loss from windows and doors can approach 40%. A need for glass that can artificially control the transmittance of visible light has therefore emerged. Smart windows with suspended particle device (SPD) film can reduce energy consumption by responding to environmental conditions. To measure the effect of SPD windows on the energy requirements for cooling and heating in Korea, we installed a testbed with SPD windows. With TRNSYS18, the comparison between measurements and simulation has been made in order to validate the simulation model with respect to the modeling of an SPD window. Furthermore, the energy requirements of conventional and SPD-applied windows were compared and analyzed for a standard building that represented an actual office building. When weather for the city of Anseong and a two-speed heat pump were used to verify the simulation, the simulated electricity consumption error compared with the testbed was −1.0% for cooling and −0.9% for heating. The annual electricity consumption error was −0.9%. When TMY2 Seoul weather data were applied to the reference building, the decrease in electricity consumption for cooling in the SPD model compared with the non-SPD model was 29.1% and the increase for heating was 15.8%. Annual electricity consumption decreased by 4.1%.

Suggested Citation

  • Yujin Ko & Hyogeun Oh & Hiki Hong & Joonki Min, 2020. "Energy Consumption Verification of SPD Smart Window, Controllable According to Solar Radiation in South Korea," Energies, MDPI, vol. 13(21), pages 1-18, October.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:21:p:5643-:d:436176
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    References listed on IDEAS

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    1. Nundy, Srijita & Ghosh, Aritra, 2020. "Thermal and visual comfort analysis of adaptive vacuum integrated switchable suspended particle device window for temperate climate," Renewable Energy, Elsevier, vol. 156(C), pages 1361-1372.
    2. Ghosh, Aritra & Norton, Brian, 2019. "Optimization of PV powered SPD switchable glazing to minimise probability of loss of power supply," Renewable Energy, Elsevier, vol. 131(C), pages 993-1001.
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    Cited by:

    1. Wang, Nan & Ghaeili, Neda & Wang, Julian & Feng, Yanxiao & Zhang, Enhe & Chen, Chenshun, 2023. "Using architectural glazing systems to harness solar thermal potential for energy savings and indoor comfort," Renewable Energy, Elsevier, vol. 219(P1).
    2. Mohammed Lami & Faris Al-naemi & Hameed Alrashidi & Walid Issa, 2022. "Quantifying of Vision through Polymer Dispersed Liquid Crystal Double-Glazed Window," Energies, MDPI, vol. 15(9), pages 1-23, April.
    3. Jae-Hyang Kim & Jongin Hong & Seung-Hoon Han, 2021. "Optimized Physical Properties of Electrochromic Smart Windows to Reduce Cooling and Heating Loads of Office Buildings," Sustainability, MDPI, vol. 13(4), pages 1-30, February.

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