Abstract

Hydrodynamics of Taylor (slug) flow in horizontal capillary with an inner diameter of 0.92 mm in water–air and glycerol solution–air systems was studied. Experimental data of bubble velocity, dynamic gas hold-up and void fraction were compared with values that were calculated by proposed earlier mathematical model of slug flow in capillary. This model is in a good agreement with experimental data in the range of capillary numbers between 0.05 and 0.12. Also liquid–solid mass transfer coefficient for slug flow and homogeneous flow was experimentally obtained in horizontal capillary with an inner diameter of 2.26 mm and 2.76 mm in a caustic soda solution–air system.

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