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Power requirements of gas‐liquid agitated systems
Author(s) -
Michel B. J.,
Miller S. A.
Publication year - 1962
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690080226
Subject(s) - process engineering , materials science , environmental science , engineering , nuclear engineering , petroleum engineering
Power data for dispersion of air in liquids by means of a six‐bladed flat blade turbine are presented in the form of a logarithmic plot of actual power consumed against a function of speed, impeller diameter, gas flow rate, and impeller power characteristics. The data are those of Michel ( 7 ), Bimbenet ( 2 ), Sachs ( 12 ), and Oyama and Endoh ( 10 ). Turbines of from 3‐ to 8‐in. diameter were run in tanks of from 6.5‐ to 18‐in. diameter, with the D / T never exceeding 0.47. The fluids tested covered a density range of 0.8 to 1.65 g./ml. and a viscosity range of 0.9 to 100 centipoises. Data are also presented on dispersion of air in a 50% by volume batch of carbon tetrachloride in water and dispersion of air in a suspension of Alundum particles in water, and compared with data on water in a similar system. The qualitative effect of a surface active agent is demonstrated in a comparison of data for a 0.1% by weight mixture of Pluronic L‐62 in water with data for pure water with the same apparatus.