Applications of laser Doppler anemometry in understanding food processing operations

The measurement of local fluid velocities in food processing equipment is needed for the validation of mathematical models that are used to simulate transport phenomena, and for the estimation of process parameters such as local shear rates and residence time distributions. Laser Doppler anemometry...

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Bibliographic Details
Published inTrends in food science & technology Vol. 8; no. 11; pp. 369 - 375
Main Authors Chandrasekaran, M., Marcroft, H., Bakalis, S., Karwe, M.V.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.11.1997
Elsevier
Subjects
Biological and medical sciences
Food engineering
Food industries
Fundamental and applied biological sciences. Psychology
General aspects
Laser dopplerometry
Double screw extruder
Mixer
Fermenter
Flow velocity
Foodstuff
Review
Measurement method
Anemometry
Furnace
Mass transfer
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Summary:The measurement of local fluid velocities in food processing equipment is needed for the validation of mathematical models that are used to simulate transport phenomena, and for the estimation of process parameters such as local shear rates and residence time distributions. Laser Doppler anemometry (LDA), a non-invasive technique for measuring fluid velocities, can be used to measure two- or three-dimensional flow fields in food processing equipment. In this article, the application of LDA to facilitate the understanding of fluid flow in extruders, mixers, fermenters and jet impingement ovens with the view to improving equipment performance is described.
ISSN:0924-2244
1879-3053
DOI:10.1016/S0924-2244(97)01084-4