ME-603 (A) · Turbomachinery/Official Syllabus
Turbomachinery (ME-603 (A)) - Official Syllabus
1
Unit 1
Energy transfer in turbo machines
- Application of first and second laws of thermodynamics to turbo machines
- moment of momentum equation and Euler turbine equation
- principles of impulse and reaction machines
- degree of reaction
- energy equation for relative velocities
- one dimensional analysis only
2
Unit 2
Steam turbines
- Impulse staging, velocity and pressure compounding
- utilization factor
- analysis for optimum U.F Curtis stage, and Rateau stage, include qualitative analysis
- effect of blade and nozzle losses on vane efficiency
- stage efficiency, analysis for optimum efficiency
- mass flow and blade height
- Reactions staging: Parson's stages
- degree of reaction, nozzle efficiency, velocity coefficient, stator efficiency
- carry over efficiency, stage efficiency, vane efficiency
- conditions for optimum efficiency, speed ratio
- axial thrust
- reheat factor in turbines
- problem of radial equilibrium, free and forced vortex types of flow
- flow with constant reaction
- governing and performance characteristics of steam turbines
3
Unit 3
Water turbines
- Classification, Pelton, Francis and Kaplan turbines
- vector diagrams and work-done
- draft tubes
- governing of water turbines
- Centrifugal Pumps: classification, advantage over reciprocating type, definition of mano-metric head, gross head, static head
- vector diagram and work done
- Application of dimensional analysis and similarity to water turbines and centrifugal pumps
- unit and specific quantities
- selection of machines
- Hydraulic, volumetric, mechanical and overall efficiencies
- Main and operating characteristics of the machines
- cavitations
4
Unit 4
Rotary Fans, Blowers and Compressors
- Classification based on pressure rise, centrifugal and axial flow machines
- Centrifugal Blowers Vane shape, velocity triangle
- degree of reactions, slip coefficient
- size and speed of machine, vane shape and stresses
- efficiency, characteristics, fan laws and characteristics
- Centrifugal Compressor - Vector diagrams, work done, temp and pressure ratio
- slip factor, work input factor, pressure coefficient
- Dimensions of inlet eye, impeller and diffuser
- Axial flow Compressors- Vector diagrams, work done factor, temp and pressure ratio
- degree of reaction, Dimensional Analysis, Characteristics
- surging
- Polytrophic and isentropic efficiencies
5
Unit 5
Power transmitting turbo machines
- Application and general theory, their torque ratio, speed ratio, slip and efficiency
- velocity diagrams, fluid coupling and Torque converter
- characteristics
- Positive displacement machines and turbo machines, their distinction
- Positive displacement pumps with fixed and variable displacements
- Hydrostatic systems hydraulic intensifier, accumulator, press and crane
Reference Books
- turbomachinery
- Turbo machinery
- Turbo machines
- Fluid Mechanics & Fluid Machines
- Gas Turbine Theory
- Steam Turbine: Theory & Practice
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