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  • Tackling Difficult Mixing Problems - AIChE

    Mixing non-Newtonian fluids may be doubly complicated when the mixing process creates the non-Newtonian proper-ties. For example, a formulation process may start with a low-viscosity liquid, and mixing causes the viscosity to increase until the fluid becomes non-Newtonian. Sometimes mixer power may be used as an indicator of final fluid viscosity.

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  • MIXER MECHANICAL DESIGN—FLUID FORCES

    2016-1-10 · the mixing impeller. These loads are dynamic and are transmitted from the impeller blades to the mixer shaft and gear reducer. A general result for the form of the fluid force equation can be developed. The importance of the mechanical interaction of the mixing process with the mixing vessel and impeller is stressed.

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  • The Motorcycle Tire Question: Radial, Bias or Both?

    2017-2-7 · Harley-Davidson Softail Breakout and CVO Breakout are both equipped with a radial rear (240/40R-18) and a bias-ply front (130/60B-19) are examples of .

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  • Mixing Fundamentals - Mixing Fundamentals

    Mixing impellers fall into one of two categories: Radial Flow or Axial Flow. Radial flow impellers have multiple flat blades mounted parallel to the axis of the mixing shaft. The blades can be attached to a disc forming a "closed" impeller or on a simple hub making an "open" style impeller. Typical uses are gas/liquid dispersion, liquid ...

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  • How to Choose the Right Impeller - Paul Mueller .

    2021-5-7 · Instead of creating the two mixing loops of an axial flow pattern, radial impellers create four loops that divide the tank into quadrants. Radial flow patterns are most useful for gas-liquid and liquid-liquid dispersion, but they can be used for other processes. Radial impellers can leave solid particles on the bottom of the tank if their is ...

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  • CHARACTERIZING IMPELLER PERFORMANCE IN STIRRED .

    2019-3-5 · IMPORTANCE OF MIXING • Smith (Trans IChemE., 1990): –US chemical industry loses $ 10 109 each year due to poor mixing: • 1 % increase in yield ~ $ .

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  • IDEAL PLUG FLOW REACTOR

    2010-10-8 · perfect mixing in the radial dimension (uniform cross section concentration) no mixing in the axial direction, or no axial dispersion (segregated flow) tracer pulse input at t = 0 translated to equal pulse output at t = = l/v (l = pfr length, v = average velocity) compare with cstr response to tracer pulse dispersion 0 q c o q c l l 0 time 0 time

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  • Mixers: Don't Let Baffles Baffle You | Chemical .

    2018-1-10 · This work showed the classic baffle load correlation to be conservative, particularly for axial flow impellers. Specifically, based upon actual power draw, for the radial flow impeller, CFD predicted a maximum baffle force of 9.3 N (versus 15.2 N calculated); for the pitched blade turbine, CFD predicted 4.6 N (versus 14.4 N calculated).

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  • Mixing in large-scale vessels stirred with multiple .

    Mixing in large-scale vessels stirred with multiple radial or radial and axial up-pumping impellers: modelling and measurements Peter Vra H bel, Rob G. J. M. van der Lans *, Karel Ch. A. M. Luyben,

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  • What is the Difference Between Axial and Radial Flow ...

    2010-9-1 · Radial and Axial Temperature Variations in a Tubular Reactor Chap. 15 We now will extend this concept to consider diffusion superimposed on the molar average velocity. 15.1.1 Definitions Diffusion is the spontaneous intermingling or mixing of atoms or molecules by random thermal motion. It gives rise to motion of the species relative to

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  • CHARACTERIZING IMPELLER PERFORMANCE IN STIRRED .

    2019-3-5 · IMPORTANCE OF MIXING • Smith (Trans IChemE., 1990): –US chemical industry loses $ 10 109 each year due to poor mixing: • 1 % increase in yield ~ $ 1 106. • One day of down time ~ $ 1 106. • Examples: –Low yields in chemical reactions: • Change in selectivity on scale-up. • .

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  • Quantification of Axial Solids Mixing and Impacts of ...

    2020-10-13 · Doan, Ha, "Quantification of Axial Solids Mixing and Impacts of Internals in a Liquid-Solids Circulating Fluidized Bed Downer" (2014). Electronic Thesis and Dissertation Repository. 2029.

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  • Types of Agitators, Agitators Design and Usages for .

    2021-4-4 · Propeller Agitators: It is an axial flow high performance mixer consisting of three blades mounted on the main shaft. They are ideal for mixing low viscosity and medium viscosity fluids and improving uniformity. Propeller agitators are popular for simple mixing jobs.

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  • Mixing and Reaction Technology - Sulzer

    2017-4-12 · Radial mixing in static mixers equalizes not only concentrations and temperatures, but also velocity distribution. Equal velocity means uniform residence time and little axial backmixing. Neither breakthroughs nor stagnant zones are observed. Static mixers are therefore employed as plug flow reactors. The flow

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  • Turbomachinery Design Software - PCA Engineers

    Vista Software. PCA has developed software for turbomachinery analysis since 1990 and has since achieved a worldwide user-base. The software comprises a range of systems for the entire aerothermal design process for all types of turbomachines, including radial and axial machines, and compressible and incompressible flow.

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  • How to Choose the Right Impeller - Paul Mueller .

    2021-5-7 · Instead of creating the two mixing loops of an axial flow pattern, radial impellers create four loops that divide the tank into quadrants. Radial flow patterns are most useful for gas-liquid and liquid-liquid dispersion, but they can be used for other processes. Radial impellers can leave solid particles on the bottom of the tank if their is ...

  • Get Price
  • Quantification of Axial Solids Mixing and Impacts of ...

    2020-10-13 · 2.4.2 Axial Hydrodynamic Behaviour ..... 41 2.4.3 Radial Hydrodynamic Behaviour ..... 41 2.4.4 Phase Mixing ..... 42

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  • Mixing Fundamentals - Mixing Fundamentals

    Mixing impellers fall into one of two categories: Radial Flow or Axial Flow. Radial flow impellers have multiple flat blades mounted parallel to the axis of the mixing shaft. The blades can be attached to a disc forming a "closed" impeller or on a simple hub making an "open" style impeller. Typical uses are gas/liquid dispersion, liquid ...

  • Get Price
  • Mixing Fundamentals - Mixing Fundamentals

    Mixing impellers fall into one of two categories: Radial Flow or Axial Flow. Radial flow impellers have multiple flat blades mounted parallel to the axis of the mixing shaft. The blades can be attached to a disc forming a "closed" impeller or on a simple hub making an "open" style impeller. Typical uses are gas/liquid dispersion, liquid ...

  • Get Price
  • Axial segregation of granular mixtures as the .

    2017-4-27 · We use the concept of rotational stability to explain the axial segregation of granular mixture inside a rotating horizontal container. We consider the core of radially segregated granular mixture as a dissipative rotating rigid body. The geometric constraints imposed by the container and the minimization of the rotational kinetic energy favor the deformation of the radial core from prolate to ...

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  • Which Impeller Is Right for Your Cell Line? - .

    2009-1-1 · As Figure 1 shows, radial flow occurs when fluid is pushed away from the impeller's axis toward the vessel wall. Axial flow occurs when fluid is pushed up or down along the axis or shaft of the impeller. .

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  • Tests of a New Axial Sputtering Technique in an ECRIS

    2011-6-28 · TESTS OF A NEW AXIAL SPUTTERI NG TECHNIQUE IN AN ECRIS* R. Scott #, R. Pardo, R. Vondrasek, Argonne Natio nal Laboratory, Argonne, IL 60439, U.S.A. Abstract Axial and radial sputtering techniques have been used over the years to create beams from an ECRIS at multiple

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  • Mixing and entrainment in the near eld of turbulent .

    2017-12-18 · Mixing and entrainment in the near field of turbulent round jets 5 where Q0 = ˇD2U0=4 is the flow rate at the jet noz- zle. Along the streamwise direction x, from 13, the well known linear increase of the axial flow rate can be de-

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  • Turbomachinery Design Software - PCA Engineers

    Vista Software. PCA has developed software for turbomachinery analysis since 1990 and has since achieved a worldwide user-base. The software comprises a range of systems for the entire aerothermal design process for all types of turbomachines, including radial and axial machines, and compressible and incompressible flow.

  • Get Price
  • A multi-dimensional population balance model .

    2013-1-1 · Mixer RPM affects the degree of axial and radial mixing. To simulate impact of RPM, the axial and radial fluxes were varied. Fig. 5a illustrates the RSD versus axial length for differing axial powder fluxes. It can be seen that as the axial powder fluxes increases, the RSD increases, indicating de-mixing in the mixer.

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  • Mixing and Reaction Technology - Sulzer

    2017-4-12 · Radial mixing in static mixers equalizes not only concentrations and temperatures, but also velocity distribution. Equal velocity means uniform residence time and little axial backmixing. Neither breakthroughs nor stagnant zones are observed. Static mixers are therefore employed as plug flow reactors. The flow

  • Get Price
  • Static Mixer Designs and Applications

    2020-4-3 · homogenous. But in the practical sense, a radial coefficient of variation of 0.05 or less is acceptable for most processes. In other words, "95% mixing or better" is a typical target for most static mixer applications. Thus, the number of elements prescribed for a specific process is usually the minimum required to reach a 0.05 CoV.

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  • Tests of a new Axial Sputtering Technique in an ECRIS

    2011-6-1 · Axial and radial sputtering techniques have been used over the years to ... Operational experience has shown greater beam production when using the radial sputtering method versus axial sputtering. At Argonne National Laboratory, previous work ... gas mixing •Grounded bias disk •Same sample shapes and sizes for

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  • Mathematical Development and Comparison of a .

    Mixing can occur in both axial and radial direction by convection and dispersion. In a continuous blender, mixing takes place when the particles are moved about by the motion of the blades with the dispersive component being negligibly small as compared to the convective one. ... Figures 3(a) and 3(b) represent the RSD versus time (at the mixer ...

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  • Types of Agitators, Agitators Design and Usages for .

    2021-4-4 · Propeller Agitators: It is an axial flow high performance mixer consisting of three blades mounted on the main shaft. They are ideal for mixing low viscosity and medium viscosity fluids and improving uniformity. Propeller agitators are popular for simple mixing jobs.

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