전과정목록 분석을 이용한 전동차의 구체 재질에 따른 CO₂ 배출량에 관한 연구

초록

As Kyoto protocol has been effective in 2005, the reduction of CO₂ emission is a global urgent problem. In Korea, the CO₂ emission of transportation increases continuously, which can be solved partially by the use of railroad. Therefore, it is necessary to calculate exactly the CO2 emission of railroad through life cycle approach. In this study, the CO₂ emission of electric motor unit (EMU) was evaluated with its carboy material using life cycle inventory analysis (LCIA). Among the life cycles of EMU, CO₂ emission was the highest in the running phase. As the total weight of EMU was lowered, CO₂ emission was reduced. In conclusion, the light-weighting of EMU can reduce CO₂ emission efficiently.