Hydraulic characteristic of a reaction turbine, a Pelton turbine and a pump, losses and efficiencies of a turbomachine, real hydraulic characteristics. Similtude laws, non dimensional coefficients, reduced scale model testing, scale effects. Cavitation, hydraulic machine setting, operating range, adaptation to the piping system, operating stability, start stop transient operation, runaway. Reaction turbine design: general procedure, general project layout, design of a Francis runner, design of the spiral casing and the distributor, draft tube role, CFD validation of the design, design fix, reduced scale model experimental validation. Pelton turbine design: general procedure, project layout, injector design, bucket design, mechanical problems. In the programs Mechanical Engineering, , Master semester 1.
|Published (Last):||13 November 2017|
|PDF File Size:||5.21 Mb|
|ePub File Size:||11.64 Mb|
|Price:||Free* [*Free Regsitration Required]|
In consideration of the reference table AA of the program " Master's degree civil engineer mechanics ", this course contributes to the development, to the acquisition and to the evaluation of the following experiences of learning:.
Explain the fundamental principles of design and operation of axial and radial turbomachines turbines. In view of the health context linked to the spread of the coronavirus, the methods of organisation and evaluation of the learning units could be adapted in different situations; these possible new methods have been - or will be - communicated by the teachers to the students.
See also the list of assessments for the June session. Teacher s. Arts Tony ;. The main focus of these lectures is directed towards axial steam and gas turbines. The description of radial gas turbines, as well as their operation, is of less importance.
A short description of hydraulic machines ends the lectures. At the end of this learning unit, the student is able to : 1 In consideration of the reference table AA of the program " Master's degree civil engineer mechanics ", this course contributes to the development, to the acquisition and to the evaluation of the following experiences of learning: AA1.
Energetical study of the operation of a turbine stage. Flow field in stationary nozzles. Expansion in a converging-diverging nozzle. Flow field in rotating blade rows. Degree of reaction. Operation of action and reaction machines. Characteristic coefficients of the operation of a turbine stage. Velocity triangles. Determination of the aerodynamic angles of stationary and rotating blade rows.
Various operation principles of a turbine stage. Efficiency of a turbine stage. Typical action and reaction stages. Curtis turbine. Flow field in a cascade : various blade design methods. Evaluation of the aerodynamic performance of a blade row. Determination of losses by experimental correlations. Secondary flows. Total-to-total efficiency of a turbine stage. Radial equilibrium principles in turbines. Equations and general solutions. Description of particular solutions free vortex, General design principles of large power steam turbines.
Exit stage. Industrial exploitation of steam turbines. Analysis of pressure and mass flow regimes. Heat and power production by steam turbines -General description and manufacturing particularities of axial gas turbines. General description of radial turbines. Geometrical particularities. Characteristic coefficients. Loss analysis and efficiency.
General description of hydraulic turbines. Overall operation characteristics. Evaluation Oral open book exam, allowing an in depth evaluation of the skills of the student. Three visits to turbomachines companies are organized. Bibliographie : J. Traupel, Thermische Turbomaschinen, Springer Verlag. Title of the programme. In consideration of the reference table AA of the program " Master's degree civil engineer mechanics ", this course contributes to the development, to the acquisition and to the evaluation of the following experiences of learning: AA1.
Introduction to Turbomachinery