JNTUK B.Tech Mechanical Unit Operations gives you detail information of Mechanical Unit Operations R13 syllabus It will be help full to understand you complete curriculum of the year.
Learning Objectives
The course introduces the student principles of mechanical operations and their application in chemical process industries. The students will be able to
- understand the fundamentals associated to liquid agitation and mixing.
- gain basic knowledge in particle characterization namely particle size, shape and specific surface.
- have working knowledge of particulate solids handling and mixing
- learn the principles of size reduction and screening
- understand the Principles and concepts of filtration
- understand the functioning of various prominent solid fluid operations related equipment namely gravity settlers, thickeners, classifiers, clarifiers, sedimenters and Cyclones.
- understand the working principle of electrostatic precipitation and flotation and their relevance in industrial practice.
UNIT-I: Agitation and mixing of liquids: Agitation of liquids, circulation velocities, power consumption in agitated vessels, purpose of Agitation, types of impellers. Blending and mixing of liquids, suspension of solid particles, dispersion operations.
UNIT –II: Properties, handling and mixing of particulate solids: Characterization of solid particles, properties of particulate masses, storage of solids and mixing of solids, types of mixers, mixers for non-cohesive solids and mixers for cohesive solids.
UNIT –III: Size reduction: Principles, criteria for comminution, characteristics of comminution, size reduction equipment-crushers, grinders, ultra-fine grinders, cutting machines, Equipment operation.
Screening: Screening, Industrial screening equipment’s, general factors in selecting a screening equipment, comparison of ideal and actual screens, material balance over a screen and screening efficiency.
UNIT –IV: Filtration: Cake filters, centrifugal filters, filter aids, clarifying filters, liquid clarification, and gas cleaning. Principles of cake filtration, principles of clarification and principles of centrifugal filtration.
UNIT –V: Separations based on motion of particles through fluids: Gravity sedimentation process: gravity classifiers, sorting classifiers, clarifiers and thickeners, Equipment for sedimentation, clarifier and thickener design.
Centrifugal settling process: Separations of solids from gases: Cyclones; Separations of solids from liquids: Hydrocyclones, principles of centrifugal sedimentation, centrifugal classifiers.
UNIT –VI: Electrostatic separation: Principle, charging by contact electrification, charging by conductive induction, charging by ion bombardment, types of equipment, effect of humidity, applications of process.
Flotation: General description, flotation reagents, applications, flotation machines, capacities, flotation economics.
Out Comes
A student proficient in Mechanical Unit Operations will have working knowledge associated with.
- particle Characterizations and Solids Handling
- mixing and size reduction of solids
- screening and Filtration
- equipments associated to solid fluid mechanical operations such as gravity settlers, thickeners, classifiers, clarifiers, sedimenters and Cyclones.
- electrostatic precipitators and flotation equipment
- industrial case studies associated to mechanical unit operations
- conceptual design of equipments in mechanical unit operations
Text Book
- McCabe,W.L.and J.C.Smith and Peter Harriott, Unit Operations in Chemical Engineering, McGraw Hill, 7th Edition. 2001.
Reference Books
- Brown, G.G., Unit Operations, CBS Publishers, 1995.
- Badger,W.L.and J.T.Banchero, Introduction to Chemical Engineering, Tata McGraw- Hill, international Edition, 1997.
- Narayanan, C.M., abd Bhattacharya,B.C., Khanna Publishers, 2011.
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