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Unit 1
Introduction:
Definition of turbo machine, parts of turbo machines, Comparison with positive displacement machines, Classification, Dimensionless parameters and their significance, Unit and specific quantities, model studies and its numerical.
Thermodynamics of fluid flow:
Application of first and second law of thermodynamics to turbo machines, Efficiencies of turbo machines, Static and Stagnation states, overall isentropic efficiency, stage efficiency (their comparison) and polytropic efficiency for both compression and expansion processes. Reheat factor for expansion process. Simple Numerical on stage efficiency and polytropic efficiency.
Unit 2
Energy exchange in Turbo machines:
Euler’s turbine equation, Alternate form of Euler’s turbine equation, Velocity triangles for different values of degree of reaction, Components of energy transfer, Degree of Reaction, utilization factor, Relation between degree of reaction and Utilization factor, Problems.
General Analysis of Turbo machines:
Radial flow compressors and pumps - general analysis, Expression for degree of reaction, velocity triangles, Effect of blade discharge angle on energy transfer and degree of reaction, Effect of blade discharge angle on performance, General analysis of axial flow pumps and compressors, degree of reaction, velocity triangles, Numerical Problems.
Unit 3
Steam Turbines:
Classification, Single stage impulse turbine, condition for maximum blade efficiency, stage efficiency, Need and methods of compounding, Multi-stage impulse turbine, expression for maximum utilization factor, Numerical Problems.
Reaction turbine:
Parsons’s turbine, condition for maximum utilization factor, reaction staging. Numerical Problems MECHANICAL AND INDUSTRIAL ENGINEERING Curriculum & Evaluation Scheme V & VI semester
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Which semester is Turbo Machines taught in for ME?
Turbo Machines (BME062) is a semester 6 subject in the AKTU B.Tech Mechanical Engineering (ME) curriculum.
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Unit 4
Hydraulic Turbines:
Classification, various efficiencies, Principle of working, velocity triangles, design parameters, maximum efficiency, Theory and types of Draft tubes. and numerical problems
Unit 5
Centrifugal Pumps:
Classification and parts of centrifugal pump, different heads and efficiencies of centrifugal pump, Theoretical head - capacity relationship, Minimum speed for starting the flow, Maximum suction lift, Net positive suction head, Cavitation, Need for priming, Pumps in series and parallel. Problems.
Centrifugal Compressors:
Stage velocity triangles, slip factor, power input factor, Stage work, Pressure developed, stage efficiency and surging and problems.
As per the latest AKTU syllabus — cross-check electives with your college.