Premium
Effect of Impeller Vertical Position on Drop Sizes in Agitated Dispersions
Author(s) -
Daglas D.,
Stamatoudis M.
Publication year - 2000
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/(sici)1521-4125(200005)23:5<437::aid-ceat437>3.0.co;2-x
Subject(s) - impeller , sauter mean diameter , drop (telecommunication) , materials science , kerosene , mechanics , slip factor , thermodynamics , engineering , mechanical engineering , physics , nozzle
The effect of impeller height relative to the vessel bottom was studied by measuring the drop size distributions of kerosene dispersions in water at two positions inside a stirred tank. Measurements were taken at 1/3, 1/ 2, and 2/3 of total vessel height for rotational speeds 250, 300, 350 and 400 RPM and for hold‐up fractions 0.02 and 0.04. Results show an influence of impeller height on drop sizes ranging from a Sauter mean diameter decrease of 7.8 % to an increase of 35 % relative to the ones obtained with the impeller at the center of the vessel