Effect of microchannel aspect ratio on residence time distributions and the axial dispersion coefficient

Chemical Engineering and Processing: Process Intensification

Volumn 48, Issue 1, 2009, Pages 554-559

  Aubin, J ^a   Prat, L ^a   Xuereb, C ^a   Gourdon, C ^a  

^a CNRS   (France)

Author keywords

Aspect ratio; Axial dispersion; Computational fluid dynamics (CFD); Laminar flow; Microchannel; Microreactor; Residence time distributions (RTD)

Indexed keywords

AXIAL DISPERSION; AXIAL DISPERSION COEFFICIENTS; AXIAL DISPERSIONS; CROSS SECTIONAL AREA; FLUID VELOCITIES; HYDRAULIC DIAMETER; LINEAR FUNCTIONS; LOW ASPECT RATIO; MICROREACTOR; NEWTONIANS; RESIDENCE TIME DISTRIBUTIONS; RESIDENCE TIME DISTRIBUTIONS (RTD); SHEAR THINNING;

COMPUTATIONAL FLUID DYNAMICS; DISPERSIONS; ELECTRON TUBE DIODES; FLUID DYNAMICS; FLUIDS; LAMINAR FLOW; MICROCHANNELS; MOLTEN MATERIALS; NON NEWTONIAN FLOW; PRESSURE DROP; RESONANT TUNNELING; REYNOLDS NUMBER; SEMICONDUCTOR DIODES; TEMPERATURE MEASURING INSTRUMENTS;

ASPECT RATIO;

EID: 68749098585     PISSN: 02552701     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.cep.2008.08.004     Document Type: Article

References (28)

1. Günther M., Schneider S., Wagner J., Gorges R., Henkel Th., Kielpinski M., Albert J., Bierbaum R., and Köhler J.M. Characterisation of residence time and residence time distribution in chip reactors with modular arrangements by integrated optical detection. Chem. Eng. J. 101 (2004) 373-378
2. Günther A., Khan S.A., Thalmann M., Trachsel F., and Jensen K.F. Transport and reaction in microscale segmented gas-liquid flow. Lab Chip (2004) 278-286
3. Golbig K., Kursawe A., Hohmann M., Taghavi-Moghadam S., and Schwalbe T. Designing microreactors in chemical synthesis-residence-time distribution of microchannel devices. Chem. Eng. Commun. 192 (2005) 620-629
4. Trachsel F., Günther A., Khan S., and Jensen K.F. Measurement of residence time distribution in microfluidic systems. Chem. Eng. Sci. 60 (2005) 5729-5737
5. Salman W., Angeli P., and Gavriilidis A. Sample pulse broadening in Taylor flow microchannels for screening applications. Chem. Eng. Technol. 28 (2005) 509-514
6. Commenge J.-M., Obein T., Genin G., Framboisier X., Rode S., Schanen V., Pitiot P., and Matlosz M. Gas-phase residence time distribution in a falling-film microreactor. Chem. Eng. Sci. 61 (2006) 597-604
7. Boskovic D., and Loebbecke S. Modelling of the residence time distribution in micromixers. Chem. Eng. J. 135S (2008) S138-S146
8. Jiang F., Drese K.S., Hardt S., Küpper M., Schönfeld F., and Helical Flows. Chaotic mixing in curved microchannels. AIChE J. 50 (2004) 2297-2305
9. Aubin J., Fletcher D.F., and Xuereb C. Design of micromixers using CFD modelling. Chem. Eng. Sci. 60 (2005) 2503-2516
10. Adeosun J.T., and Lawal A. Mass transfer enhancement in microchannel reactors by reorientation of fluid interfaces and stretching. Sens. Actuators B 110 (2005) 101-111
11. Salman W., Gavriilidis A., and Angeli P. Axial mass transfer in Taylor flow through circular microchannels. AIChE J. 53 (2007) 1413-1428
12. Amador C., Wenn D., Shaw J., Gavriilidis A., and Angeli P. Design of a mesh microreactor for even flow distribution and narrow residence time distribution. Chem. Eng. J. 135S (2008) S259-S269
13. Geyer P.E., Rosaguti N.R., Fletcher D.F., and Haynes B.S. Thermohydraulics of square-section microchannels following a serpentine path. Microfluid Nanofluid 2 (2006) 195-204
14. Sarrazin F., Prat L., Di Miceli N., Cristobal G., Link D.R., and Weitz D.A. Mixing characterization of microdroplets engineering on a microcoalescer. Chem. Eng. Sci. 62 (2007) 1042-1048
15. Shah R.K., and London A.L. Laminar Flow Forced Convection in Ducts (1978), Academic Press Inc., NY
16. Gobby D., Angeli P., and Gavriilidis A. Mixing characteristics of T-type microfluidic mixers. J. Micromech. Microeng. 11 (2001) 126-132
17. Chen J.M., Horng T.-L., and Tan W.Y. Analysis and measurements of mixing in pressure-driven microchannel flow. Microfluid Nanofluid 2 (2006) 455-469
18. Dutta D., and Leighton Jr. D.T. Dispersion reduction in pressure-driven flow through microetched channels. Anal. Chem. 73 (2001) 504-513
19. Dutta D., Ramachandran A., and Leighton Jr. D.T. Effect of channel geometry on solute dispersion in pressure-driven microfluidic systems. Microfluid Nanofluid 2 (2006) 275-290
20. Taylor G.I. Dispersion of soluble matter in solvent flowing slowly through a tube. Proc. R. Soc. (London) 219A (1953) 186-203
21. ANSYS, 2007, www.ansys.com/cfx.
22. Dunleavy J.E., and Middleman S. Relation of shear behavior of solutions of polyisobutylene. Trans. Soc. Rheol. 10 (1966) 151
23. Park S., and Lee D.-R. Experimental and numerical investigations of pressure drop in a rectangular duct with modified power law fluids. Heat Mass Transfer 39 (2003) 645-655
24. Fogler H.S. Elements of Chemical Reaction Engineering. 2nd ed. (1992), PTR Prentice Hall, Englewood Cliffs, NJ
25. Couderc J.-P., Gourdon C., and Liné A. Phénomènes de transfert en génie des procédés (2008), Lavoisier, Paris pp. 230-232
26. Ranade V.R., and Ulbrecht J.J. Velocity profiles of Newtonian and non-Newtonian toroidal flows measured by a LDA technique. Chem. Eng. Commun. 20 (1982) 253-272
27. Saxena A.K., Nigam K.M., and Nigam K.P.D. RTD for diffusion-free laminar flow of non-Newtonian fluds through coiled tubes. Can. J. Chem. Eng. 61 (1983) 50-52
28. Castelain C., and Legentilhomme P. Residence time distribution of a purely viscous non-Newtonian fluid in helically coiled of spatially chaotic flows. Chem. Eng. J. 120 (2006) 181-191