화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2017년 가을 (10/25 ~ 10/27, 대전컨벤션센터)
권호 23권 2호, p.1623
발표분야 분리기술
제목 Three-phase computational fluid dynamics (CFD) of crude oil separator under off-shore conditions
초록 This study aims to predict the fluid behaviors and oil separation efficiency under offshore conditions. A three-dimensional (3D) Eulerian computational fluid dynamics (CFD) model was developed for an air-water-oil separation, which combined with a rotation matrix and k-ɛ turbulence model. The air-phase was considered continuous, while oil and water phases were supposed as mono-dispersed secondary phases. The momentum equation included drag force, lift force and resistance of porous media. The exit pressures of oil and water play an important role in maintaining the liquid level of oil and water in the separator, which influences the separation efficiency of oil. It was found that the exit pressures of water and oil were at 6.3 kPa and 5.1 kPa, respectively, to keep the liquid level of 25 cm with a good separation efficiency. The mean residence time for water and oil obtained from the CFD simulation was about 15 and 16 min, respectively. The predicted oil separation efficiency (99.85%) agreed well with experimental data (99.96 %). The CFD results also showed the pitching motion and three ship motions influence significantly the separation performance in the separator.
저자 임영일1, Le Thi Thuy1, 박치균2, 이병돈2, 김병국2, 임동하3
소속 1한경대, 2Jeonjin EnTech Co, 3KITECH Busan
키워드 액체분리
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