| 논문명 |
Water-side economizer의 Free cooling 운전 기간 확대를 위한 냉각탑 Fan 풍량 제어에 관한 연구 / Fan Flow Control of Cooling Tower with Water-side Economizer for Free Cooling Period Expansion |
| 저자명 |
김유진(Kim, Yu-Jin) ; 송영학(Song, Young-Hak) ; 김환용(Kim, Hwan-Yong) |
| 수록사항 |
한국건축친환경설비학회 논문집, Vol.17 No.3 (2023-06) |
| 주제어 |
냉각탑 풍량; WSE 시스템; 냉각수 온도; 에너지 절감; 프리쿨링 ; Cooling tower fan air flow rate; Water-side economizer system; Condenser water temperature; Energy saving; Free cooling |
| 요약2 |
Recently, various strategies have been proposed to reduce energy of Water-side economizer (WSE), and in particular, due to the increase in the construction of data centers, many studies have been conducted to reduce cooling energy. Therefore, in this study, a strategy to expand full-free cooling according to the decrease in the cooling tower outlet temperature of the cooling tower was established by increasing the cooling tower air volume for the WSE system. In addition simulation calculations were performed to analyze the effectiveness of the strategy to analyze the energy savings. According to the simulation calculation of the cooling tower fan air volume at intervals of 5% in the range of 50% ~ 100%, the energy was saved from 100% to 22.4% compared to the cooling tower fan ratio of 50%, during the representative week of partial load, a total of 100 hours of full-free cooling operation time was increased. Therefore, in order to implement the efficient operation of the WSE system, it is necessary to first consider increasing the cooling tower fan air volume as much as possible. |
