공동주택 건물의 상수도 절감량에 따른 CO 2 배출량 저감효과에 관한 연구

The current worldwide interest in environmental issues has moved from energy conservation to CO 2 emission reduction. Recently, according to the increase in demand for water resources, insufficient potable water circumstance is supposed, unless there are corresponding in crease in water conservation and water recycling. This study has attempted to analyze CO 2 emission reduction by water saving strategies like installation water saving devices, rain water harvesting and grey water system. To do this, this research investigates applicable water conservative strategies by literature review and calculated total water saving. There sults show that (1) firstly, the water usage and CO 2 emission could be reduced up to 44%, (2) CO 2 emission reduction by water saving devices and rainwater harvesting system is about 47.7%, and (3) water usage and CO 2 emission reduction by grey water system is about 66%. In the future, this paper will be utilized for water management from the early design stage to maintenance stage of water glutton building.