Department of Chemical Engineering, Unit Catalogue 2008/09 |
CE20093 Particle technology |
| Credits: 3 |
| Level: Intermediate |
| Semester: 2 |
| Assessment: EX 100% |
| Requisites: |
| Before taking this unit you must take CE20089 and take MA10192 |
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Aims: To give students an introduction to the behaviour of particulate systems within a broad range of applications.
Learning Outcomes: After successfully completing this unit students should be able to: * characterise particles by size, shape, and size distribution; * calculate drag forces using standard correlations and determine particle trajectories; * calculate terminal and equilibrium velocities for single particles and design and evaluate classifiers, elutriators and centrifuges; * calculate sedimentation velocities for suspensions; * calculate pressure drop in packed beds, describe the basic fluidisation phenomena; * describe techniques for the storage and conveyance of particles and associated hazards; * calculate filter performance for constant pressure and rate operation; * describe the behaviour of fine particles and the electrical and surface effects that cause this behaviour. Skills: Analysis, Synthesis and Design and creativity. Content: * Formation and characterisation of dispersed phases; * Crushing and grinding; * Fluid mechanics applied to deformable and non-deformable dispersed phases; * Settler thickener design: precipitation and coalescence; * Centrifugation: disk; decanter; solid bowl types; * Packed and fluidised beds; * Filtration; * Pneumatic and hydraulic conveying and other methods of transport for solids and slurries; * Colloids and emulsions; * Agglomeration and flocculation. |