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Characterization of a Raman Spectroscopic and Holographic System for Gas‐Liquid Flows in Microchannels
Author(s) -
Schurr Daniela,
Guhathakurta Jajnabalkya,
Simon Sven,
Rinke Günter,
Dittmeyer Roland
Publication year - 2017
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201600622
Subject(s) - microchannel , characterization (materials science) , holography , transient (computer programming) , microfluidics , mass transport , flow (mathematics) , mechanics , temporal resolution , raman spectroscopy , resolution (logic) , chemistry , materials science , nanotechnology , optics , physics , computer science , engineering physics , artificial intelligence , operating system
The description and prediction of the highly transient processes on the molecular scale in gas‐liquid Taylor flows in microchannels are a great challenge. Due to a lack of in situ measurement techniques with satisfactory spatial and temporal resolution, existing models and numerical simulations of reactive two‐phase flows are poorly developed. The Raman spectroscopic and holographic system presented herein overcomes shortcomings regarding the high temporal resolution and concomitant difficulties with the high energy densities that must be coupled into microstructured devices to give good limits of detection. It gives insight into the concentration profiles in the liquid phase within the microchannel to study the interaction between hydrodynamics, mass transport, and reaction kinetics.