| Title |
Comparative Analysis on the Heat Transfer Characteristics between Dry and Wet Ondol Systems |
| Authors |
Jung Hae-Kwon ; Cho Dong-Woo ; Yu Ki-Hyung |
| Keywords |
Ondol ; Heat Transfer Characteristics ; Energy Consumption ; Dry Ondol System |
| Abstract |
This study aims to evaluate the heat transfer characteristics and energy consumption in the wet and dry ondol systems. Conditions of the continued heating mode set the indoor temperature at 20℃ and hot water supply temperature at 60℃ and 70℃ for 3 days. The scheduled heating mode operates heating at 6～9am (room temperature at 20℃), suspends heating at 9～18pm (out mode), and runs heating at 18～24am (room temperature at 20℃) and 24～6am (room temperature at 17℃) for 2 days. The results from the continuous heating mode in the dry/wet ondol systems confirmed that the dry and wet systems had the same average indoor air temperature (18.9℃) and similar energy consumption. In addition, the results from the scheduled heating mode in the dry/wet ondol systems confirmed that the dry ondol system had lower energy consumption than the wet ondol system. Therefore, the scheduled heating mode in the dry ondol system is expected to reduce energy consumption. |