2024-03-28T09:23:00Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:00002148
2022-12-15T03:34:59Z
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Mixing and mass transfer characteristics of an unbaffled aerated agitation vessel with unsteadily forward-reverse rotating multiple impellers
Mixing and mass transfer characteristics of an unbaffled aerated agitation vessel with unsteadily forward-reverse rotating multiple impellers
Yoshida, M.
Akiho, M.
Nonaka, K.
Yamagiwa, K.
Ohkawa, A.
Tezura, S.
mixing time
volumetric mass transfer coefficient
unbaffled aerated agitation vessel
unsteadily forward-reverse rotating impeller
multiple impeller system
Mixing and mass transfer characteristics of an unbaffled aerated agitation vessel with a liquid height-to-diameter ratio of 2 having unsteadily forward-reverse rotating multiple impellers, a cross type of impellers with four delta blades (CDs), were experimentally studied for air-water system in comparison with those of a baffled vessel having steadily unidirectionally rotating disk turbine impellers with six flat blades (DTs). For the forward-reverse rotating CD vessel, the contribution of sparged gas to enhancement in liquid phase mixing was observed in the entire range of gas sparging rate including its lower range. Agitating by the forward-reverse rotating CDs functioned effectively to enhance gas-liquid mass transfer not only in the lower range of gas sparging rate but also in its higher range. The features in operating the forward-reverse rotating multiple CD vessel were discussed in terms of the differences in the mixing time and volumetric mass transfer coefficient due to changes in the power input.
Universidad Nacional del Sur
2005-03
eng
journal article
http://hdl.handle.net/10191/26465
https://niigata-u.repo.nii.ac.jp/records/2148
AA10741012
03270793
Latin American applied research
Latin American applied research
35
1
37
42
https://niigata-u.repo.nii.ac.jp/record/2148/files/35_1_37-42.pdf
application/pdf
15.2 MB
2019-07-29