A combined criterion to identify mixing performance for the blending of non-Newtonian fluids using a Kenics KM static mixer
作者： E. Hugh Stitt , Federico Alberini , Mark J.H. Simmons , Andy Ingram
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摘要: Planar Laser Induced Fluorescence (PLIF) has been used to determine the mixing performance of KM static mixers for blending Newtonian fluids (aqueous glycerol solutions) and time-independent non-Newtonian carbopol 940 solutions), whose rheology shows Herschel-Bulkley behaviour. The effect number elements, fluid apparent viscosity ratio two-fluid have investigated at constant mixture velocity 0.3 m s -1 . For blending, addition a high stream into lower main flow causes very poor performance, with unmixed spots visible on PLIF image. Determination log variance average striation thickness revealed conflicting trends. A combined area based method allows presentation criterion which combines aspects both scale intensity segregation, can be in combination conventional approaches.
mixing14.eu 参考文章(10)
Victor A Atiemo-Obeng, Suzanne M. Kresta, Edward L. Paul, Handbook Of Industrial Mixing Science And Practice ,(2003)
Jonathan F. Hall, Mostafa Barigou, Mark J. H. Simmons, E. Hugh Stitt, Mixing in Unbaffled High-Throughput Experimentation Reactors Industrial & Engineering Chemistry Research. ,vol. 43, pp. 4149- 4158 ,(2004) , 10.1021/IE049872Q
M. M. Alvarez, J. M. Zalc, T. Shinbrot, P. E. Arratia, F. J. Muzzio, Mechanisms of mixing and creation of structure in laminar stirred tanks AIChE Journal. ,vol. 48, pp. 2135- 2148 ,(2002) , 10.1002/AIC.690481005
Alena Kukukova, Joelle Aubin, Suzanne M. Kresta, Measuring the scale of segregation in mixing data The Canadian Journal of Chemical Engineering. ,vol. 89, pp. 1122- 1138 ,(2011) , 10.1002/CJCE.20532
Paulo E. Arratia, Fernando J. Muzzio, Planar Laser-Induced Fluorescence Method for Analysis of Mixing in Laminar Flows Industrial & Engineering Chemistry Research. ,vol. 43, pp. 6557- 6568 ,(2004) , 10.1021/IE049838B
N.F. Shah, D.D. Kale, Pressure drop for laminar flow of non-Newtonian fluids in static mixers Chemical Engineering Science. ,vol. 46, pp. 2159- 2161 ,(1991) , 10.1016/0009-2509(91)80175-X
J. M. Zalc, E. S. Szalai, M. M. Alvarez, F. J. Muzzio, Using CFD to understand chaotic mixing in laminar stirred tanks AIChE Journal. ,vol. 48, pp. 2124- 2134 ,(2002) , 10.1002/AIC.690481004
Dineshkumar Patel, Farhad Ein-Mozaffari, Mehrab Mehrvar, Dynamic Performance of Continuous-Flow Mixing of Pseudoplastic Fluids Exhibiting Yield Stress in Stirred Reactors Industrial & Engineering Chemistry Research. ,vol. 50, pp. 9377- 9389 ,(2011) , 10.1021/IE102388Y
Adamiak I, Jaworski Z, An experimental investigation of the non-Newtonian liquid flow in a Kenics static mixer Inzynieria Chemiczna I Procesowa. ,vol. 22, pp. 175- 180 ,(2001)
Edward L Paul, Victor A Atiemo-Obeng, Suzanne M Kresta, Handbook of Industrial Mixing John Wiley & Sons, Inc.. ,(2003) , 10.1002/0471451452