인버터형 냉각탑의 구조진동 절연효과에 관한 연구

Cooling tower is essential air conditioning equipment for discharging to the atmosphere to absorb energy from the chiller. Lately, there are a lot of instances that drive in inverter form of automatic control system so that can change the cooling tower rotational speed according to cooling load condition of building inside. This method is economical to be able to save energy. But, rotational speed of cooling tower can be match the building floor natural frequency because of extensive rotational speed. Specially, a large cooling load is required, buildings such as data center happens occasion that can not avoid resonance phenomenon because of low fan speed. This research confirmed effect of vibration isolator that is installed to cooling tower to target the actual structure, and the tuned mass damper(TMD) installation reduced vibration by the resonance phenomenon in the office and verified their performance. And proved structure sound reduction performance of coil style vibration-isolation spring installed to cooling tower. We wish to use to basis data about vibration isolator choice and building measure of inverter style cooling tower through this field example.