TY  - JOUR
AU  - Nikačević, Nikola
AU  - Thielen, L.
AU  - Twerda, A.
AU  - Van den Hof, P. M. J.
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2989
AB  - Flow pattern analysis in a spiral Helix reactor is conducted, for the application in 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 30 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. The dimensionless dispersion. coefficient (Pe) is estimated under different conditions and results are analyzed. Finally, a correlation relating the Pe number with the Reynolds number and number of coils from the reactor entrance is proposed for the particular reactor application and conditions.
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry & Chemical Engineering Quarterly
T1  - Cfd analysis and flow model reduction for surfactant production in helix reactor
EP  - 44
IS  - 1
SP  - 35
VL  - 21
DO  - 10.2298/CICEQ131010003N
ER  - 

@article{
author = "Nikačević, Nikola and Thielen, L. and Twerda, A. and Van den Hof, P. M. J.",
year = "2015",
abstract = "Flow pattern analysis in a spiral Helix reactor is conducted, for the application in 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 30 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. The dimensionless dispersion. coefficient (Pe) is estimated under different conditions and results are analyzed. Finally, a correlation relating the Pe number with the Reynolds number and number of coils from the reactor entrance is proposed for the particular reactor application and conditions.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry & Chemical Engineering Quarterly",
title = "Cfd analysis and flow model reduction for surfactant production in helix reactor",
pages = "44-35",
number = "1",
volume = "21",
doi = "10.2298/CICEQ131010003N"
}

Nikačević, N., Thielen, L., Twerda, A.,& Van den Hof, P. M. J.. (2015). Cfd analysis and flow model reduction for surfactant production in helix reactor. in Chemical Industry & Chemical Engineering Quarterly
Savez hemijskih inženjera, Beograd., 21(1), 35-44.
https://doi.org/10.2298/CICEQ131010003N

Nikačević N, Thielen L, Twerda A, Van den Hof PMJ. Cfd analysis and flow model reduction for surfactant production in helix reactor. in Chemical Industry & Chemical Engineering Quarterly. 2015;21(1):35-44.
doi:10.2298/CICEQ131010003N .

Nikačević, Nikola, Thielen, L., Twerda, A., Van den Hof, P. M. J., "Cfd analysis and flow model reduction for surfactant production in helix reactor" in Chemical Industry & Chemical Engineering Quarterly, 21, no. 1 (2015):35-44,
https://doi.org/10.2298/CICEQ131010003N . .