Hydrodynamics in bubble columns with helically-finned tube Internals: Experiments and CFD-PBM simulation
نویسندگان
چکیده
Experiments and CFD-PBM simulation were performed in this study to investigate the effects of helically-finned tube (HFT) internals on gas-liquid flow a laboratory-scale bubble column. Hydrodynamic parameters, including gas holdup, size field as well turbulence properties, compared for an empty column other two columns with bare-tube (BT) or HFT internals. We found that bare rods promote stability two-phase flow, whereas helical fins destabilize flow. Meanwhile, spatial distribution holdup becomes more uniform presence internals, liquid velocity turbulent dissipation rate evidently decreases. The fin-induced spiral movement, resistance accumulation are mechanisms underlying these experimental observations. Integration rod fin may be promising process intensification columns.
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ژورنال
عنوان ژورنال: Chemical Engineering Science
سال: 2021
ISSN: ['1873-4405', '0009-2509']
DOI: https://doi.org/10.1016/j.ces.2021.116674