cfd analysis and flow model reduction for surfactant production in helix reactor

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ID: 234355
2015
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Abstract
Flow pattern analysis in a spiral Helix reactor is conducted, for the application in the commercial surfactant production. Step change response curves (SCR) were obtained from numerical tracer experiments by three-dimensional computational fluid dynamics (CFD) simulations. Non-reactive flow is simulated, though viscosity is treated as variable in the direction of flow, as it increases during the reaction. The design and operating parameters (reactor diameter, number of coils and inlet velocity) are varied in CFD simulations, in order to examine the effects on the flow pattern. Given that 3D simulations are not practical for fast computations needed for optimization, scale-up and control, CFD flow model is reduced to one-dimensional axial dispersion (AD) model with spatially variable dispersion coefficient. Dimensionless dispersion coefficient (Pe) is estimated under different conditions and results are analyzed. Finally, correlation which relates Pe number with Reynolds number and number of coils from the reactor entrance is proposed for the particular reactor application and conditions.
Reference Key
n.m.2015chemicalcfd Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Nikačević N.M.;Thielen L.;Twerda A.;Van Den Hof P.M.J.
Journal organon
Year 2015
DOI
10.2298/CICEQ131010003N
URL
http://www.doiserbia.nb.rs/img/doi/1451-9372/2015/1451-93721400003N.pdf
Keywords
process intensification cfd simulation batch to continuouschemical engineeringchemical industries

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