期刊
CHEMICAL ENGINEERING & TECHNOLOGY
卷 37, 期 3, 页码 383-391出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ceat.201300219
关键词
CFD; Froth height; Hydrodynamics; Valve tray
A computational fluid dynamics model was developed to investigate the hydrodynamic characteristics of a novel orthogonal fixed-valve tray, which offers a larger effective contact perimeter under the same orifice area than its previously reported counterparts. The liquid-gas phases were simulated in the Eulerian framework, with the interphase momentum transfer source term based on the experimentally obtained liquid hold-up correlation. The simulation results were consistent with the experimental data. In addition, the gas hold-up profile of this new design was compared with its triangular cousin under the conditions of a typical run, showing that the former has a higher froth height, which indicated better interphase contact on the tray.
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