EY4093 Fluidized Bed Systems Syllabus:
EY4093 Fluidized Bed Systems Syllabus – Anna University PG Syllabus Regulation 2021
COURSE OBJECTIVES:
1. To understand the behavior of fluidized beds
2. To learn about the heat transfer process
3. To differentiate the combustion and gasification, and appreciate the relative merits
4. To design components of fluidized bed systems
5. To understand the industrial applications of fluidized bed systems
UNIT– I FLUIDIZED BED BEHAVIOUR
Characterization of bed particles–comparison of different methods of gas–solid contacts. Fluidization phenomena – regimes of fluidization – bed pressure drop curve. Two phase and wellmixed theory of fluidization. Particle entrainment and elutriation – unique features of circulating fluidized beds.
UNIT– II HEAT TRANSFER
Different modes of heat transfer in fluidized bed– bed to wall heat transfer – gas to solid heat transfer – radiant heat transfer – heat transfer to immersed surfaces. Methods for improvement – external heat exchangers– heat transfer and part load operations.
UNIT–III COMBUSTION AND GASIFICATION
Fluidized bed combustion and gasification–stages of combustion of particles–performance–start –up methods. Pressurized fluidized beds.
UNIT– IV DESIGN CONSIDERATIONS
Design of distributors–stoichiometric calculations–heat and mass balance–furnace design–design of heating surfaces–gas solid separators.
UNIT– V INDUSTRIAL APPLICATIONS
Physical operations like transportation, mixing of fine powders, heat exchange, coating, drying and sizing. Cracking and reforming of hydrocarbons, carbonization, combustion and gasification. Sulphur retention and oxides of nitrogen emission Control.
TOTAL:45PERIODS
COURSE OUTCOMES:
Upon completion of this course, the students will be able to:
1. Illustrate the behavior of fluidized bed particles and explain the theory of fluidization.
2. Analyze the heat transfer process in fluidized beds
3. Apply concepts of combustion and gasification in fluidized beds
4. Interpret the design consideration for components of fluidized bed system.
5. Evaluate fluidized bed systems for various industrial applications.
REFERENCES:
1. Howard,J.R.,FluidizedBedTechnology:PrinciplesandApplications,AdamHilger,NewYork,1983.
2. Geldart, D., Gas Fluidization Technology, John Willey and Sons, 1986.
3. Kunii,D and Levespiel,O., Fluidization Engineering, John Wiley and Son Inc, New York,1969.
4. Howard,J.R.(Ed), Fluidized Beds: Combustion and Applications, Applied Science Publishers, New York, 1983.
5. Botteril,J.S.M., Fluid Bed Heat Transfer, Academic Press, London,1975.