Prediction Model of CO2 Emission for Residential Buildings in South Korea: Fid-Bau Portal

Prediction Model of CO2 Emission for Residential Buildings in South Korea

Moon, HyunSeok / Hyun, ChangTaek / Hong, TaeHoon

The emission of ${CO}_{2}$ is becoming an increasingly important consideration in the construction industry, resulting in a significant amount of research actively being conducted to assess ${CO}_{2}$ emission by using the completed designs of construction projects. However, studies on estimating ${CO}_{2}$ emission of new construction projects remain few and far between. Thus, this study aimed at developing a model for estimating ${CO}_{2}$ emission based on materials required in the construction and maintenance phases of residential buildings prior to design completion. Toward this end, the study used a case-based reasoning approach to predict the quantities of materials required in the construction and maintenance phases. Furthermore, through the life-cycle assessment approach, this study established a database of ${CO}_{2}$ emission to calculate ${CO}_{2}$ emission according to the construction materials. The study then proposed a method that could estimate ${CO}_{2}$ emission by using the predicted quantities of materials and the established database. To validate the developed model, the study performed five case studies. Results showed that the error ratios of the prediction were $- 4.26$ , $- 5.06$ , 7.37, $- 4.32$ , and $- 2.94 %$ , respectively, in each of the cases, and ${CO}_{2}$ emissions of materials for residential buildings could be estimated prior to design completion. It is expected that the developed model will be a useful tool in the decision-making process on design alternatives that consider ${CO}_{2}$ emission and the type of construction materials.