Subject Syllabus
ME-603 (A) - Turbomachinery
ME · Semester 6
Course Modules
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Impulse stagingVelocity and pressure compoundingUtilization factorAnalysis for optimum U.F. Curtis stage and Rateau stageQualitative analysisEffect of blade and nozzle losses on vane efficiency and stage efficiencyAnalysis for optimum efficiencyMass flow and blade heightReaction staging: Parson's stagesDegree of reaction, nozzle efficiency, velocity coefficient, stator efficiencyCarry over efficiency, stage efficiency, vane efficiencyConditions for optimum efficiencySpeed ratio, axial thrustReheat factor in turbinesProblem of radial equilibriumFree and forced vortex types of flowFlow with constant reactionGoverning and performance characteristics of steam turbines
Classification of water turbinesPelton, Francis and Kaplan turbinesVector diagrams and work-doneDraft tubesGoverning of water turbinesCentrifugal pumps: classificationAdvantage over reciprocating typeDefinition of mano-metric head, gross head, static headVector diagram and work doneApplication of dimensional analysis and similarity to water turbines and centrifugal pumpsUnit and specific quantitiesSelection of machinesHydraulic, volumetric, mechanical and overall efficienciesMain and operating characteristics of the machinesCavitations
Classification based on pressure riseCentrifugal and axial flow machinesCentrifugal blowers: vane shape, velocity triangle, degree of reactionsSlip coefficient, size and speed of machineVane shape and stresses, efficiency, characteristicsFan laws and characteristicsCentrifugal compressor: vector diagrams, work done, temp and pressure ratioSlip factor, work input factor, pressure coefficientDimensions of inlet eye, impeller and diffuserAxial flow compressors: vector diagrams, work done factorTemp and pressure ratio, degree of reactionDimensional analysis, characteristics, surgingPolytrophic and isentropic efficiencies
Application and general theoryTorque ratio, speed ratio, slip and efficiencyVelocity diagramsFluid coupling and torque converterCharacteristicsPositive displacement machines and turbo machines, their distinctionPositive displacement pumps with fixed and variable displacementsHydrostatic systems: hydraulic intensifier, accumulator, press and crane