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Title :Effect of impeller clearance on power consumption of unsteadily forward-reverse rotating multiple impellers in an unbaffled agitation vessel
Authors :Yoshida, Masanori
Ito, Akira
Yamagiwa, Kazuaki
Ohkawa, Akira
Abe, Masahiko
Tezura, Shuichi
Shimazaki, Masuo
Publisher :Universidad Nacional del Sur
Issue Date :Apr-2002
Journal Title :Latin American applied research
Volume :32
Issue :2
Start Page :189
End Page :194
ISSN :0327-0793
Abstract :Power consumption of unsteadily forward-reverse rotating multiple impellers, a new cross type of impellers with four delta blades (CDs), was experimentally studied in an unbaffled agitation vessel containing water with a liquid heigh t-to-diameter ratio of 2. The effect of clearance on the power number of forward-reverse rotating double and triple CDs was compared with that of udidinationally rotating disk turbine impellers with six flat blades (Dls) in the baffled vesseL The result was discussed in relation to the difference in bulk flow pattern between the unbaffled vessel with CDs and the baffled vessel with Dls, The study also revealed that the value of power consumption for the forward-reverse rotating multiple CDs in the unbaffled vessel can be evaluated as the value for the single CD system multiplied by the number of impeller stages over a wide range of impeller clearances.
Keywords :power consumption
unbaffled agitation vessel
unsteadily forward-reverse rotating impeller
multiple impeller system
impeller clearance
Type Local :学術雑誌論文
Language :eng
Format :application/pdf
URI :http://hdl.handle.net/10191/26467
fullTextURL :http://dspace.lib.niigata-u.ac.jp/dspace/bitstream/10191/26467/1/32_2_189-194.pdf
Appears in Collections:10 査読済論文 = Postprint

Please use this identifier to cite or link to this item: http://hdl.handle.net/10191/26467