Liquid phase velocity in A 5.5M diameter bubble column.
Eiichi Kojima,Hajime Unno,Yukinari Sato,Tadashi Chida,Hiroshi Imai,Kazuo Endo,Ichiro Inoue,Jiro Kobayashi,Hisatsugu Kaji,Hajime Nakanishi,Kazuo Yamamoto +10 more
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In this paper, a bubble column 5.5 m in diameter and approximately 7 m in liquid height was measured and the velocity distribution was analyzed by a circulating flow model, with values of the turbulent viscosity in the range from 3000 to 4000 g/cm • sec.Abstract:
Liquid Telocity distribution was measured in a bubble column 5.5 m in diameter and approximately 7 m in liquid height. Liquid flow was upward in the column center and downward near the wall. The upward velocities were from 52 to 115 cm/sec in the superficial gas velocity range from 2.4 to 8.5 cm/sec. The liquid velocity distribution is analyzed by a circulating flow model. Values of the turbulent viscosity-the parameter of the model-are in the range from 3000 to 4000 g/cm • sec. These values agree well with those estimated by an empirical formula for turbulent viscosity proposed by Miyauchi and Shyu for smaller-diameter bubble columns.read more
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