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Optical Measuring Methods for the Investigation of High-Pressure Homogenisation

Bisten, Ariane; Schuchmann, Heike P.

Abstract:
High-pressure homogenisation is a commonly used technique to produce emulsions with droplets in the micro to nano scale. Due to the flow field in the homogenizer, stresses are transferred to the interface between droplets and continuous phase. Cohesive forces within droplets interact with external stresses. To exceed the cohesive forces, high process pressures are necessary, which might cause a complex flow pattern and large flow velocities. Additionally, the pressure drop can induce cavitation. Inline measurements are a challenge, but necessary to understand droplet break-up in a high-pressure homogenizer. Recently, different optical methods have been used to investigate the flow conditions as well as the droplet deformation and break-up in high-pressure homogenisation, such as high speed imaging, particle and micro particle image velocimetry. In this review, those optical measuring methods are considered critically in their applications and limitations, achievable results and further developments.

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Verlagsausgabe §
DOI: 10.5445/IR/1000132128
Veröffentlicht am 30.04.2021
Originalveröffentlichung
DOI: 10.3390/pr4040041
Scopus
Zitationen: 12
Web of Science
Zitationen: 9
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Bio- und Lebensmitteltechnik (BLT)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 15.11.2016
Sprache Englisch
Identifikator ISSN: 2227-9717
KITopen-ID: 1000132128
Erschienen in Processes
Verlag MDPI
Band 4
Heft 41
Seiten Art. Nr.: 41
Schlagwörter high-pressure homogenisation; optical measurement methods; flow field characterisation; droplet break-up; emulsification
Nachgewiesen in Scopus
Web of Science
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