An experimental and theoretical study of multiphase flow in a circulating fluidized bed
Hyppänen, Timo (1989-08-11)
Väitöskirja
Hyppänen, Timo
11.08.1989
Lappeenranta University of Technology
Tieteellisiä julkaisuja - Research Papers
Julkaisun pysyvä osoite on
https://urn.fi/URN:ISBN:978-952-214-874-2
https://urn.fi/URN:ISBN:978-952-214-874-2
Tiivistelmä
A systematic averaging procedure has been derived in order to obtain an integral form of conservation equations for dispersed multiphase flow, especially applicable to fluidized beds. A similar averaging method is applied further to formulate macroscopic integral equations, which can be used in one-dimensional and macroscopic multi dimensional models. Circulating fluid bed hydrodynamics has been studied experimentally and both macroscopic and microscopic flow profiles have been measured in a cold model. As an application of the theory, the one dimensional model has been used to study mass and momentum conservation of gas and solid in a circulating fluid bed. Axial solid mixing has also been modelled by the one dimensional model and mixing parameters have been evaluated.
Kokoelmat
- Väitöskirjat [1099]