Chapter 4. Experimental Methods

  1. Edward L. Paul4,
  2. Victor A. Atiemo-Obeng5,
  3. Suzanne M. Kresta6
  1. David A. R. Brown1,
  2. Pip N. Jones1,
  3. John C. Middleton1,
  4. George Papadopoulos2,
  5. Engin B. Arik3,†

Published Online: 30 JAN 2004

DOI: 10.1002/0471451452.ch4

Handbook of Industrial Mixing: Science and Practice

Handbook of Industrial Mixing: Science and Practice

How to Cite

Brown, D. A. R., Jones, P. N., Middleton, J. C., Papadopoulos, G. and Arik, E. B. (2004) Experimental Methods, in Handbook of Industrial Mixing: Science and Practice (eds E. L. Paul, V. A. Atiemo-Obeng and S. M. Kresta), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/0471451452.ch4

Editor Information

  1. 4

    Merck & Co., Inc. (retired); 308 Brooklyn Boulevard, Sea Girt, NJ 08750, USA

  2. 5

    The Dow Chemical Company, Building 1776, Midland, MI 48674, USA

  3. 6

    Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada T6G 2G6

Author Information

  1. 1

    BHR Group Ltd., Fluid Engineering Centre, Cranfield, Bedfordshire MK43 0AJ, United Kingdom

  2. 2

    Dantec Dynamics, Inc., 777 Corporate Drive, Mahwah, NJ 07430, USA

  3. 3

    VioSense Corporation, 36 S. Chester Ave., Pasadena, CA 91106-3105, USA

  1. Formerly with Dantec Dynamics, Inc.

Publication History

  1. Published Online: 30 JAN 2004
  2. Published Print: 14 NOV 2003

ISBN Information

Print ISBN: 9780471269199

Online ISBN: 9780471451457

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Keywords:

  • measurements;
  • model fluids;
  • simulant fluids;
  • rheology;
  • viscosity;
  • scale-up;
  • power draw;
  • torque;
  • strain gauge(s);
  • load cell(s);
  • air bearing;
  • rheometer;
  • (flow) visualisation;
  • decolourisation;
  • mixing time;
  • blend time;
  • optical probe(s);
  • Schlieren effect;
  • thermocouple;
  • conductivity probe;
  • residence time distribution;
  • degree of mixedness;
  • coefficient of variation;
  • reactive mixing;
  • Bourne reaction scheme;
  • Azo-coupling;
  • solid suspension;
  • solid distribution;
  • just suspended speed;
  • Njs;
  • ultrasonic Doppler flow-meter;
  • UDF;
  • droplet size;
  • image analysis;
  • bubble size;
  • interfacial tension;
  • pendant drop;
  • phase inversion;
  • laser diffraction;
  • mass transfer;
  • coalescence;
  • gas hold-up;
  • tomography;
  • laser Doppler velocimetry;
  • laser Doppler anemometry;
  • PIV;
  • particle image velocimetry;
  • phase Doppler anemometry

Summary

Mixing experiments are often essential for successful process development and scale-up. The techniques and equipment required to make both qualitative and quantitative measurements of mixing processes are discussed. Emphasis is placed on practical instructions on how to perform the techniques and analyse the resulting data. Examples of typical data are included. Guidance on why and when mixing experiments should be performed is provided, as is information on some of the essential equipment and model fluids required to perform a typical range of mixing experiments. Sections describing the different types of measurements follow. These include rheology measurement, power measurement, miscible liquid phase mixing or blend time, solid–liquid mixing, immiscible liquid–liquid dispersion and gas–liquid mixing and mass transfer. A final extensive section describes the direct flow measurements LDA (or LDV), PDA, and PIV from both theoretical and practical perspectives.