computational fluid dynamics simulation of pilot-plant-scale two-phase separators推荐.pdf

296 A. Pourahmadi Laleh et al. Ali Pourahmadi Laleh1 Research Article William Y. Svrcek1 2 Wayne D. Monnery Computational Fluid Dynamics Simulation of 1The University of Calgary, Pilot-Plant-Scale Two-Phase Separators Department of Chemical and Petroleum Engineering, Calgary, Alberta, Canada. Two computational fluid dynamics (CFD) modeling approaches, the discrete 2 phase model (DPM) and the combination of volume of fluid (VOF) and DPM, Chem-Pet Process Tech Ltd., are developed to simulate the phase separation phenomenon in four pilot-plant- Calgary, Alberta, Canada. scale separators. The incipient vapor phase velocity, at which liquid droplet carry- over occurs, and separation efficiency plots are used as criteria for evaluating the developed CFD models. The simulation results indicate that the VOF-DPM approach is a substantial modification to the DPM approach in terms of the pre- dicted separation efficiency data and diagrams. CFD simulation profiles demon- strate that all the separators are essentially operating at a constant pressure. The CFD results also show that mist eliminators may operate more efficiently in hori- zontal separators than in vertical separators. Keywords: Computational fluid dynamics simulation, Multiphase flows, Phase separation, Two-phase separator