건물의 에너지 절약을 위한 외기냉수냉방 시스템에 관한 연구

Using energy economically and environment - friendly is important. Recently the cooling load in buildings is increasing even in winter. Free cooling can be a very energy efficient way for buildings that are high in cooling load all year round. In this research economical aspect of free cooling and problems of operation were studied through surveys of buildings that need all year round cooling load. On the basic theory and then designs guide lines of using free cooling and upgraded operation method are suggested. Through developments of design guide lines and control algorithm free cooling system is expected to be adopted in new buildings as well as building renovation.