Enhancement of Mixing by Unsteady Agitation of an Impeller in an Agitated Vessel

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概要

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• The effects of unsteady agitation, which was carried out by counter rotation, or raising and lowering of an impeller, on mixing of viscous liquids in an agitated vessel are investigated experimentally. A decoloration reaction is adopted to observe the mixing pattern and to measure the mixing time. By steady agitation, the segregated regions are formed in a vessel equipped with a 4-bladed pitched paddle in the range of relative low Reynolds numbers less than 200. It is demonstrated that these segregated regions are readily destroyed when counter rotation is carried out and are prevented from forming when the impeller is raised and lowered.

著者

• Nomura Toshio

  Shinto Scientfflic Co., Ltd.

• Uchida Tatsuo

  Shinto Scientific Co., Lid,

• Takahashi Koji

  Shinto Scientific Co., Lid,

• Nomura Toshio

  Shinto Scientific Co., Lid,

関連論文

• Performance of a Shaking Vessel-Type Bioreactor with a Current Pole
• IMPROVEMENT OF PARTICLE DISPERSION IN A SHAKING VESSEL WITH CURRENT POLE
• EFFECT OF SCALE ON PARTICLE-IMPELLER IMPACT IN AN AGITATED VESSEL EQUIPPED WITH A RUSHTON TURBINE
• PARTICLE-IMPELLER IMPACT IN AN AGITATED VESSEL EQUIPPED WITH A RUSHTON TURBINE
• Enhancement of Mixing by Unsteady Agitation of an Impeller in an Agitated Vessel
• PARTICLE-IMPELLER IMPACT FOR A SIX BLADED 45°PITCHED TURBINE IN AN AGITATED VESSEL
• EFFECT OF PARTICLE-IMPELLER IMPACT RATE ON PROPERTIES OF PRODUCT CRYSTALS IN AGITATED CRYSTALLIZERS OF DIFFERENT SIZES
• Effects of Position and Geometry of Current Pole on Mixing Characteristics in Shaking Vessel

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