| 학회 |
한국화학공학회 |
| 학술대회 |
2020년 가을 (10/14 ~ 10/16, e-컨퍼런스) |
| 권호 |
26권 1호, p.123 |
| 발표분야 |
공정시스템 |
| 제목 |
Computational fluid dynamics of gas-organic liquid bubble column under high pressure |
| 초록 |
A two-phase computational fluid dynamics (CFD) model coupled with the population balance equation (PBE) was developed in a homogeneous air–kerosene bubble column under high pressure (P). The hydrodynamics in terms of specific pressure drop (ΔP/L ), gas holdup (αG ), and Sauter mean diameter (d32 ) were experimentally measured in a bubble column with 1.8 m height and 0.1 m inner diameter, which was operated at a superficial gas velocity of 12.3 mm/s, and P = 1-35 bar. The drag coefficient model was modified to consider the effect of both bubble swarm and pressure on the hydrodynamics. The modified Luo breakage model accounted for the liquid density, viscosity, surface tension and gas density. The calculated ΔP/L , αG , and d32 were compared with experimental data, and the gas density-dependent parameters of the CFD model were identified. With increasing P from 1 to 35 bar, the αG varied from 5.4% to 7.2% and the d32 decreased from 2.3 to 1.5 mm. The CFD-PBE model is applicable to predict hydrodynamics of homogeneous bubble columns for gas–organic liquid under elevated pressure. |
| 저자 |
Tran Van Bay1, Ngo Ich Son2, 임영일2, 배건3, 이동현3, 고강석4, 노 남선4
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| 소속 |
1한경대, 2CoSPE, 3Sungkyunkwan Univ., 4KIER |
| 키워드 |
공정시스템 |
| E-Mail |
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| 원문파일 |
초록 보기 |
