건축물 전과정평가 기법에 기반한 업무용 건축물의 단계별 온실가스 배출량 분석

Abstract

This study aims to analyze the GHG emissions per step of the life cycle of office building as part of the reduction of Green House Gas emissions in the construction sector. For this purpose, the data about the design documents, quantity and building energy efficiency rating were collected, and primary building materials and annual energy consumption of the office buildings were analyzed. In addition, the life cycle GHG emissions generated in life cycle of the office building were quantitatively assessed, and the method of reduction of the GHG emissions in the construction sector were proposed based on the international standard ISO14040s and the building life cycle assessment guideline of the G-SEED 2016 which is the building certification system in South Korea. As a result of the analysis, the GHG emissions were generated more than 95% in the production stage and the operation stage. It was analyzed that the GHG emissions were differed according to the structure type in the production stage, and the energy consumption of the heating, cooling, hot water supply, lighting and ventilation sectors which are continuously used for 50 years in the operation stage. Hence, it would be possible to decrease the GHG emissions if causes of the GHG emissions increase by stage was analyzed and building design was held considering it during the early stage of construction