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Electrical Engineering Optional Subjects (Group 3)
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Postby champcsm » Fri Jun 17, 2016 4:35 pm

Group A
Positive displacement and turbo machines. Basic principles of rotodynamic machines. Efficiency of turbo machines.
Flow through nozzles and blade passages: Steady flow through nozzles, isentropic flow; Effect of friction in flow passages; Converging-diverging nozzles; Flow of wet steam through nozzles; Diffusers.
Steam and gas turbines. Pressure and velocity compounding; Velocity diagrams; Degree of reaction; Utilisation factor; Reaction blanding; Analysis of flow through turbo machines; Energy equation; Momentum equation.
Fluid dynamic consideration: Theoretically obtainable work head; Profile losses. Clearance and leakage losses. Windage losses. Partial admission losses. Flow deviation, Diffuser performance. Design of blade passages. Cavitation in turbo machines.
Group B
Centrifugal compressors: Description and operation, energy transfer and relations, losses, adiabatic efficiency, effect of compressibility, performance characteristics, pressure coefficient, slip factor, surging, surge lines and stall line.
Axial compressor: Introduction, stage characteristics, blade efficiency, design coefficients, blade loading, cascade characteristics, three-dimensional flow considerations, supersonic axial flow compressor, performance characteristics.
Wind turbines: Power, energy and torque of wind turbines, coefficient of performance, energy production and capacity factor, turbine shaft power, torque at variable speeds.
Hydraulic turbomachines: Hydraulic turbines (Pelton wheel and Kaplan turbines), centrifugal and axial flow pumps, characteristics of hydraulic turbomachines.
Fans: Classification, fan laws.
Power transmitting turbomachines; Hydraulic coupling; Torque converters.
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Joined: Fri Jun 17, 2016 3:58 pm

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