지역냉방 공동주택 세대 내 냉방시스템 경제성 평가

An Economic Assessment of Cooling Systems for District Cooling in Residential Buildings

In Korean residential buildings, the packaged air-conditioner(PAC) has been widely used as a cooling system. However, the PAC creates a negative effect on the environment since this system uses CFCs(chlorofluorocarbon), also apparently causes a problem of day-time peak of electric power demand in summer. In order to reduce problems caused by the PAC, district cooling system has been suggested. This study aims to determine cooling system which is installed in occupied zone for district cooling in residential buildings. LCC analysis is used to evaluate cooling system. Fan coil unit system and the radiant floor cooling system are selected as an alternative. LCC analysis results show that the radiant floor cooling system is most economical cooling system.