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

Wongeun Lee, Taesub Lim and Daeung Danny Kim
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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

Energies, 2020, vol. 13, issue 21, 1-11

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.

Keywords: prefab electric Ondol system; thermal performance; heating energy; heating cost; residential building (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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