Course Details

Subject {L-T-P / C} : CH6132 : Advanced Fluidization Engineering { 3-0-0 / 3}

Subject Nature : Theory

Coordinator : Prof. Abanti Sahoo

Syllabus

Introduction to fluidization, types of fluidization, Gross behaviour of fluidized beds, Minimum fluidizing velocity and pressure drops, Distributor design, Voidage, transport disengaging height.

Bubbles in dense beds, Davidson Model, stream of bubbles, bubbling bed models, Emulsion phase, Turn-over rate of solids, residence time distribution diffusion model of solids movement, interchange coefficient into and out of wake.
Diffusion model for gas flow two region models, evaluation of interchange coefficients. Mass and heat transfer between fluids and solid from bubbling bed model Catalytic conversion from bubbling bed model contacting efficiency application to successive reactions Theories and bed-wall heat transfer comparison of theories.

Entrainment and elutrition, application of entrainment model Residence time distribution and size distribution of solids in fluidized beds, particles of changing size Circulation rates of solids, flow of high and low bulk density mixtures.

Design for catalytic reactors Design for noncatalytic gas-solid reactors.

Course Objectives

Course Outcomes

1. better understanding of fluidization phenomena <br />2. develop generic fluidized bed reactor models <br />3. investigate new diagnostic methods and analysis techniques to enable more reliable design and operation of industrial-scale fluidized bed reactors. <br />4. learn technique of Beneficiation of Low grade Minerals and high ash coals, Energy Winning and Treatment of Wastes

Essential Reading

Supplementary Reading