김원년 김서영 2024-01-21T03:04:51Z 2024-01-21T03:04:51Z 2021-09-06 2006-05 1229-6422 https://pubs.kist.re.kr/handle/201004/135536 For the design of a liquid direct contact cooling system, thermal and hydraulic analysis has been carried out. Well-known Zukauskas correlations are used to estimate the Nusselt number between the liquid refrigerant columns and the inlet airflow. The inlet air velocity is set at a typical value used in an actual showcase. For a constant column number, the best nozzle arrangement is determined for the maximum heat transfer. Heat transfer increases as the transverse pitch of the refrigerant column decreases. Among all the cases dealt with in the present study, the staggered arrangement with 140-columns of 14×10 shows the best thermal performance and the expected temperature drop is 27.8℃. The effect of downstream refrigerant columns on the overall thermal performance is investigated as well. 대한설비공학회 액체식 직접 접촉 냉각장치의 노즐배열 최적화：정풍량 해석 Optimization of Nozzle Arrangement in a Liquid Direct Contact Cooling System:Constant InletFlowrate Analysis Article 2 설비공학 논문집, v.18, no.5, pp.402 - 409 설비공학 논문집 18 5 402 409 kci ART001011019 Showcase(쇼케이스) Zukauskas correlation(주카우스카스 상관식) Liquid direct contact cooling(액체식 직접 접촉 냉각)