TY - JOUR
T1 - A computational study on dispersing gas in a stirred reactor
AU - Bakker, A.
AU - Van den Akker, H. E.A.
PY - 1992
Y1 - 1992
N2 - A model has been presented with which local values of holdup, bubble size and mass transfer can be calculated in a stirred vessel. All the model equations are incorporated in an in-house code named GHOST!, that is capable of performing both 2D and 3D computations on any type of cylindrical finite difference grid. The model allows for an assessment of effects on mass transfer, gas holdup and bubble size of impeller type, impeller position, sparger position, aeration rate, etc. Predicted values of local holdup, and overall holdup compare very well with experimental data. Overall mass transfer tends to be underpredicted, but lacking data of local bubble shape make an accurate calculation of the interfacial area difficult. Further research would be useful. Especially more experimental data on local bubble size, local bubble shape, local gas holdup and local mass transfer rate is required, to make an extensive verification of the modeling results possible. (Authors)
AB - A model has been presented with which local values of holdup, bubble size and mass transfer can be calculated in a stirred vessel. All the model equations are incorporated in an in-house code named GHOST!, that is capable of performing both 2D and 3D computations on any type of cylindrical finite difference grid. The model allows for an assessment of effects on mass transfer, gas holdup and bubble size of impeller type, impeller position, sparger position, aeration rate, etc. Predicted values of local holdup, and overall holdup compare very well with experimental data. Overall mass transfer tends to be underpredicted, but lacking data of local bubble shape make an accurate calculation of the interfacial area difficult. Further research would be useful. Especially more experimental data on local bubble size, local bubble shape, local gas holdup and local mass transfer rate is required, to make an extensive verification of the modeling results possible. (Authors)
UR - http://www.scopus.com/inward/record.url?scp=84943008754&partnerID=8YFLogxK
U2 - 10.1007/978-94-015-7973-5_5
DO - 10.1007/978-94-015-7973-5_5
M3 - Article
AN - SCOPUS:84943008754
VL - 10
SP - 37
EP - 45
JO - Fluid Mechanics and its Applications
JF - Fluid Mechanics and its Applications
ER -