←Mechanical Engineering

3L + 0T + 3P practical problems using empirical correlations. ➔ The course will also briefly cover boiling and condensation heat transfer, and the analysis and design of heat exchangers. Detailed contents: Module 1 Introduction to three modes of heat transfer, Derivation of heat balance equation- Steady one dimensional solution for conduction heat transfer in Cartesian, 1 cylindrical and spherical geometry, concept of conduction and film resistances, critical insulation thickness, lumped system approximation and Biot number, heat transfer through pin fins- Two dimensional conduction solutions for both steady and unsteady heat transfer-approximate solution to unsteady conduction heat transfer by the use of Heissler charts. Module 2 Heat convection, basic equations, boundary layers: Forced convection, external and internal flows- Natural convective heat transfer- Dimensionless parameters for forced and free convection heat transfer-Correlations for forced and free convection- Approximate solutions to laminar boundary layer equations (momentum and energy) for both internal and external flow- Estimating heat transfer rates in laminar and turbulent flow situations using appropriate correlations for free and forced convection. Module 3 Interaction of radiation with materials, definitions of radiative properties, Stefan Boltzmann’s law, black and gray body radiation, Calculation of radiation heat transfer between surfaces using radiative properties, view factors and the radiosity method. Module 4 Types of heat exchangers, Analysis and design of heat exchangers using bothLMTD and ε-NTU methods. Module 5 Boiling and Condensation heat transfer, Pool boiling curve. Module 6 Introduction mass transfer, Similarity between heat and mass transfer

3L + 0T + 3P Detailed contents: Module 1 Introduction: Classification of fluid machinery. Module 2 3 Dynamic action of fluid jet: Impact of fluid jet on fixed and moving flat places, impact of jet on fixed and moving curved vanes, flow over radial vanes, jet propulsions. Module 3 Euler’s fundamental equation, degree of reaction. Module 4 Hydraulic turbines, introduction, classification, impulse turbine, construction details, velocity triangles, power and efficiency calculations, reaction turbines; construction details, working principle, velocity triangles, power and efficiency calculations, draft tube, cavitation, Governing. Module 5 Principle of similarity in fluid machinery; unit and specific quantities, testing models and selection of hydraulic turbines. Module 6 Positive displacement pumps: Reciprocating pump; working principle, classification, slip, indicator diagram, effect of friction and acceleration, theory of air vessel, performance characteristics gas gear oil pump and screw pump. Module 7 Rotodynamic pumps: Introduction, classification, centrifugal pump; main components, working principle velocity triangle, effect of shape of blade specific speed, heats, power and efficiency, calculations minimum steering speed, multi stage pumps, performance characteristic, comparison with reciprocating pump.

3L + 0T + 3P Detailed contents: Module 1 Conventional Manufacturing processes: Casting and Moulding: Metal casting processes and equipment, Heat transfer and solidification, shrinkage, riser design, casting defects and residual stresses. Module 2 Introduction to bulk and sheet metal forming, plastic deformation and yield criteria; fundamentals of hot and cold working processes; load estimation for bulk forming (forging, rolling, extrusion, drawing) and sheet forming (shearing, deep drawing, bending) principles of powder metallurgy. 5 Module 3 Metal cutting: Single and multi-point cutting; Orthogonal cutting, various force components: Chip formation, Tool wear and tool life, Surface finish and integrity, Machinability, Cutting tool materials, Cutting fluids, Coating; Turning, Drilling, Milling and finishing processes, Introduction to CNC machining. Module 4 Joining/fastening processes: Physics of welding, brazing and soldering; design considerations in welding, Solid and liquid state joining processes; Adhesive bonding. Additive manufacturing: Rapid prototyping and rapid tooling Module 5 Machine Tools: ➔ Lathe: Principle, types, operations, turret/capstan, semi/automatic, Tool layout. ➔ Shaper, slotted, planer, operation, drive. ➔ Milling, Milling cutter, up & down milling, dividing head indexing, Max chip thickness, power required. ➔ Drilling and boring, reaming tools, Geometry of twist drill, Grinding, Grinding wheel, Abrasive, cutting action, grinding wheel specification, Grinding wheel wear, alterations, wear, fracture wear, dressing and trimming. Max chip thickness and guest criteria, Flat and cylindrical grinding, Centerless grinding, Super finishing, Honing lapping, Pol

3L + 1T + 0P Detailed contents: Module 1 Introduction: Classification of mechanisms: Basic kinematic concepts and Definitions-Degree of freedom, mobility-Grashof’s law, Kinematic inversions of four bar chain and slider crank chains. Module 2 7 Kinematic analysis of plane mechanism: Displacement, velocity and acceleration analysis of simple mechanisms, graphical velocity analysis using instantaneous centers, kinematic analysis of simple mechanisms- slider crank mechanism dynamics- Coriolis component of Acceleration. Module 3 Friction devices: Belt drive, Clutch, Shoe brakes, Band and block brakes. Module 4 Gear: gear terminology, Involute and Cycloidal gear profiles, gear parameters, fundamental law of gearing and conjugate action, spur gear contact ratio and interference/undercutting. Gear Train: Analysis of simple, compound, reverted and epicyclic gear trains with problems. Module 5 Balancing of rotating masses: Balancing of rotating masses in the same plane by a single revolving mass. Balancing of several rotating masses in the same plane. Balancing of several rotating masses in different planes by two revolving masses in suitable planes. Module 6 Governors: Watt, Porter, Proel & Hartnell Governors, Effect of friction, controlling force, governor effort and power, sensitivity and isochronics.