893329 Fluidization engineering

Lecture and exercise
Semester hours
Lecturer (assistant)
Offered in
Wintersemester 2022/23
Languages of instruction


Fundamental characteristics of fluidized systems, characterization of granular solids, fluid dynamics in stationary granular solids, minimum fluidization condition and onset of fluidization, fluid-particle system characterization by Geldart, fluidized bed regime maps by Reh and Grace, bubbling fluidized beds, turbulent fluidized beds, circulating fluidized beds, heat transfer in fluidzed beds, chemical reactions in fluidized beds, interconnected fluidized beds, components of fluidized bed systems, scale-up of fluidized beds, fluid-dynamic cold flow models, scaling relationships for fluidized beds, history of fluidization engineering and overview on typical fluidized bed processes

Previous knowledge expected

Master-course: Bachelor-level knowledge in physics and engineering is expected The students know the main characteristics of fluidized systems and know about the relevant differences to fixed and moving bed systems.
The students know the basic conditions for achieving a fluidized state.
The students know the particle-Reynolds number and the Archimedes number.
The students are able to define the gross dimensions of a fluidized bed for given fluid and solid parameters

Objective (expected results of study and acquired competences)

The students are able to design a gas distributor for gas-solid fluidized beds.
The students know the categories of fluid/solid systems by Geldart and are able to define the regime for given fluid and solids parameters.
The students are able to localize the operating point of a fluid/solid system in fluidized bed regime maps and are able to verbally describe the expected regime.
The students know the scaling relationships for fluidized beds by Glicksman and are able to describe the effect of changing process parameters on the comparability of states.
The students know the main components of fluidized bed systems and can rationally propose fluidized bed systems arrangements for certain applications.
The students are able to give an overview on the classical practical fluidized bed applications and are able to discuss the advantages and disadvantages of fluidized bed systems with respect to competing technologies
You can find more details like the schedule or information about exams on the course-page in BOKUonline.