| 학회 |
한국화학공학회 |
| 학술대회 |
2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터) |
| 권호 |
25권 1호, p.128 |
| 발표분야 |
공정시스템(Process Systems Engineering) |
| 제목 |
A CFD-PBE model of an air-kerosene bubble column under high pressure |
| 초록 |
A gas-liquid Eulerian computational fluid dynamics (CFD) coupled with the population balance equation (PBE) was developed in an air-kerosene bubble column under high pressures up to 35 bar. The mixture shear stress transport k-ω turbulent model with modification of turbulent liquid viscosity was used. The drag coefficient, breakup and coalescence model were proposed to account for the pressure effect on the gas holdup and the fraction of micro-bubbles. The bubble column had 0.1 m in diameter and 1.8 m in height. The kerosene was filled initially at a height of 1 m. The air was injected with a superficial velocity of 12.3 mm/s through a gas distributor located at the bottom of column. The calculated specific pressure drop, total gas holdup and micro-bubble fraction were validated with experimental data. The specific surface area was 196.5, 296.6, 328.4 and 348.7 m2/m3 at 1, 15, 25 and 35 bar, respectively. The CFD-PBE model can be used to predict the hydrodynamics of a gas-organic liquid bubble column at high pressure. |
| 저자 |
Tran Van Bay1, Ngo Ich Son1, 임영일1, 이동현2, 고강석3, 노남선3
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| 소속 |
1한경대, 2성균관대, 3KIER |
| 키워드 |
공정모델링; 공정최적화; 공정모사
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| E-Mail |
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| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
