TY - JOUR
T1 - A high-pressure homogenization emulsification model
T2 - improved emulsifier transport and hydrodynamic coupling
AU - Håkansson, Andreas
AU - Innings, Fredrik
AU - Trägårdh, Christian
AU - Bergenståhl, Björn
PY - 2013
Y1 - 2013
N2 - The high-pressure homogenizer emulsification modelling framework by Håkansson et al. (2009a, Chemical Engineering Science 64, 2915–2925; 2009b. Food Hydrocolloids 23, 1177–1183), is further developed in this study. The model, including the simultaneous fragmentation of drops, coalescence of drops and kinetic adsorption of macromolecular emulsifiers, is improved with regard to two points. First, the transport of adsorbed emulsifier between drops of different sizes due to the fragmentation and coalescence of drops, is included using bivariate population balances. Second, the coupling of hydrodynamics to the emulsification model is improved using information from recent hydrodynamic investigations. The proposed framework is exemplified using a set of physically reasonable kernels and a production scale high-pressure homogenizer geometry, showing realistic emulsification results.
AB - The high-pressure homogenizer emulsification modelling framework by Håkansson et al. (2009a, Chemical Engineering Science 64, 2915–2925; 2009b. Food Hydrocolloids 23, 1177–1183), is further developed in this study. The model, including the simultaneous fragmentation of drops, coalescence of drops and kinetic adsorption of macromolecular emulsifiers, is improved with regard to two points. First, the transport of adsorbed emulsifier between drops of different sizes due to the fragmentation and coalescence of drops, is included using bivariate population balances. Second, the coupling of hydrodynamics to the emulsification model is improved using information from recent hydrodynamic investigations. The proposed framework is exemplified using a set of physically reasonable kernels and a production scale high-pressure homogenizer geometry, showing realistic emulsification results.
KW - Computational fluid dynamics
KW - Emulsion
KW - Homogenization
KW - Hydrodynamics
KW - Population balance
KW - Turbulence
U2 - 10.1016/j.ces.2013.01.011
DO - 10.1016/j.ces.2013.01.011
M3 - Article
SN - 0009-2509
VL - 91
SP - 44
EP - 53
JO - Chemical Engineering Science
JF - Chemical Engineering Science
ER -