| Title |
Theoretical Analysis on the Applications of the Double-Floor Ondol System |
| Authors |
최원기(Won-Ki Choi) ; 이강영(Kang-Young Lee) ; 이현근(Hyun-Geun Lee) ; 서승직(Seung-Jik Suh) |
| Keywords |
이중 바닥 온돌 시스템 ; 다층 공동주택 ; 벤트 존 ; CFD 분석 ; 민감도 분석 Double floor ondol system ; Multi-stories buildings ; Vent zone ; CFD analysis ; Sensitivity analysis |
| Abstract |
The Korean traditional ‘Ondol’ system has been a target for innovation to meet the requirements of sustainable domestic building and low carbon emission energy utilization. Simulation techniques provide designers and researchers with powerful tools to predict heating load and thermal behaviour of Ondol systems installed in various contexts. However, there are few studies on Ondol models, especially associated with multi-stories buildings of which type covers about 50% of Korean housing stock. In this study, we analyzed the double floor Ondol system on the multi-stories buildings using the ESP-r program. On the basis of the double floor Ondol system, we suggested the new modelling method that is composed of the Vent zone and Ondol zone. Using the this model, sensitivity analysis was carried out to refine the applicability of the model taking account of control conditions, constructions, air change and air flow network method and CFD analysis using the FLUENT. The air layer has enough temperature to use in heating zone. It is suggested that the simplicity of the model will allow building designers and mechanical engineers easily to implement scenario-based assessments of design options as well as control strategies. Later, we will simulate the real buildings and analyze the air distributions using the Fluent according to the various conditions. |