| 논문명 |
DesignBuilder 프로그램을 이용한 건물에너지 해석에서 열교 영향 모델링 방법 평가 / Evaluation of Thermal Bridging Effect Modeling Method in Building Energy Simulation Using DesignBuilder Program |
| 수록사항 |
한국건축친환경설비학회 논문집, Vol.18 No.2 (2024-04) |
| 주제어 |
디자인빌더; 동적 건물에너지 해석; 열교; 유효 열관류율; 전열계수 ; DesignBuilder; Dynamic Building energy simulation; Thermal bridge; Effective U-factor; Heat transfer coefficient |
| 요약2 |
The purpose of this study was to compare of results according to thermal bridging modeling method in building energy simulation using DesignBuilder program. To model the thermal bridging effect in the DesignBuilder program, the effective U-factor and the heat transfer coefficient through linear and point thermal bridges were calculated and reflected through a three-dimensional heat transfer analysis. In the former case, the effect of thermal bridges is approximated by increasing or decreasing the thickness of the insulation only in the exterior wall configuration, while in the latter case, the effect of linear and point thermal bridges can be considered together by subtracting the heat flow rate through non-thermal bridges from the total heat flow rate. The method reflecting the heat transfer coefficient through the linear and point thermal bridges results in 13.9 to 19.6% greater annual heating and cooling energy use than the method reflecting the effective U-factor, and the savings for the base case and alternatives are similar for both methods. |
