| Title |
Green Remodeling Decision-Making Considering Dynamic Interactions of Passive and Active Retrofit Variables |
| Authors |
허선영(Heo, Seon-Young) ; 라선중(Ra, Seon-Jung) ; 김영섭(Kin, Young-Sub) ; 추한경(Chu, Han-Gyeong) ; 박철수(Park, Cheol-Soo) |
| DOI |
https://doi.org/10.5659/JAIK.2023.39.8.187 |
| Keywords |
Sensitivity analysis; SHAP method; Retrofit variables; Interaction; Performance-based; decision making |
| Abstract |
With the urgency of global warming, the building sector is trying to curtail building energy for sustainable development. The current building
codes relies on a prescriptive approach that specifies thermal properties of building components such as wall U-value, window U-value,
fenestration SHGC, heat pump COP, lighting density. However, this prescriptive falls short because it does not consider the holistic energy
performance of a building as well as sometimes results in biased or wrong decision making. To overcome this, we selected a target building
(US DOE small office building), conducted global sensitivity analysis and analyzed interwoven interactions between retrofit variables and
building energy use through the SHAP method, one of the explainable AIs. Conclusively, it was found that if the interwoven interactions
were not properly taken into account, the prescriptive approach could lead to a wrong decision making. In addition, it emphasized that the
performance based thinking must be employed in building energy decision making. |