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Thermal and Energy Performance Assessment of the Prefab Electric Ondol System for Floor Heating in a Residential Building

Author

Listed:
  • Wongeun Lee

    (Department of Architectural Engineering, Seoil University, Seoul 02192, Korea)

  • Taesub Lim

    (Department of Architectural Engineering, Seoil University, Seoul 02192, Korea)

  • Daeung Danny Kim

    (Department of Architectural Engineering, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi Arabia)

Abstract

In South Korea, radiant floor heating has been used from old housing to the recently constructed residential buildings, which is called “Ondol”. The Ondol system is generally a water-based system and it uses hot water as a heat medium provided by boilers fueled by natural gas. With great effort to reduce greenhouse gas emissions, electric Ondol panels have been increasingly applied to the recent residential buildings for floor heating. While the prefab electric Ondol panels were developed with the demand for dry construction method, the information about the prefab electric Ondol system is not sufficient. For the present study, the thermal performance of the prefab electric Ondol panels was investigated through field measurement. In addition, the heating energy and economic performance of the electric panel were compared with the conventional Ondol system. As a result, a significant surface temperature difference was observed. Moreover, the heating cost for the prefab electric Ondol system was more expensive than the conventional system, even though a heat loss was observed by the operation of the conventional system.

Suggested Citation

  • Wongeun Lee & Taesub Lim & Daeung Danny Kim, 2020. "Thermal and Energy Performance Assessment of the Prefab Electric Ondol System for Floor Heating in a Residential Building," Energies, MDPI, vol. 13(21), pages 1-11, November.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:21:p:5723-:d:438792
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    References listed on IDEAS

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    1. Chung, Mo & Park, Chuhwan & Lee, Sukgyu & Park, Hwa-Choon & Im, Yong-Hoon & Chang, Youngho, 2012. "A decision support assessment of cogeneration plant for a community energy system in Korea," Energy Policy, Elsevier, vol. 47(C), pages 365-383.
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    Cited by:

    1. Łukasz Amanowicz, 2020. "Controlling the Thermal Power of a Wall Heating Panel with Heat Pipes by Changing the Mass Flowrate and Temperature of Supplying Water—Experimental Investigations," Energies, MDPI, vol. 13(24), pages 1-18, December.
    2. Vítor Leal, 2021. "Buildings Energy Efficiency and Innovative Energy Systems," Energies, MDPI, vol. 14(16), pages 1-5, August.

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