GITAM University Mechanical Operations IV SEM Syllabus
B.Tech. (BT) IV Semester
Course Code : EURBT403 Category: CE
Credits: 3 Hours: 3 per week
Characteristics of solid particles: shape-size differential and cumulative screen
analysis – specific surface area – particle population – different mean diameters for a
mixture of particles – storage of solids.
Principles of communition – laws of crushing (rittinger’s, bond’s, kick’s laws) – work
index – classification, description and working of size reduction equipment – jaw,
gyratory and roll crushers – hammers – revolving mills – attrition mills – fluid energy
mill – cutting machines – open and closed circuit grinding – wet and dry grinding –
Size separation: screening – industrial screens – grizzly – gyratory and vibratory
screens – revolving screens – trommels – capacity and effectiveness of screens – froth
Filtration: description and working of filtration equipment – plate and frame filter
press. Shell and leaf filters, rotary drum filter – filter aid – centrifugal filtration – top
suspended batch centrifuge. Theory of filtration – washing of cakes.
Motion of particles through fluids: drag – free and hindered settling.
Settling velocities – classification – sink & float methods – differential setting.
Batch sedimentation – thickeners – flocculation – centrifugal sedimentation – gravity
and centrifugal decanters.
Agitation of liquids – power consumption in agitated vessels – scale up of agitation
equipment – mixing equipment for mixing of solids and pastes – mixing for dry
powders – mixing index.
1. Unit operations of chemical engineering. McCabe, Smith and Harriot. 7th ed. 2005.
McGraw Hill Book Co.