Transfert de l'énergie dans les turbomachinesAérodynamique et transport (GSI)
Energy Transfer in Turbomachinery
Séquencement
Learning objectives
-Determine criteria for the selection and optimization of turbomachine operation in the fields of hydraulics, aeraulics, pneumatics and wind turbines. -Introduce the approach of energy diagnosis of production equipment.
Prerequisites
| Module | Teaching unit | Semester |
|---|---|---|
| Fluid Mechanics 1 | Mechanical Engineering 2 | S6 |
| Fluid Mechanics 3 | pre-orientation IMC | S8 |
Program
I. GENERALITIES ON SCHOOLS IN TURBOMACHINES 1.1. Classification. 1.2. Arrangement of the components of a turbomachine. 1.3. Composition of speeds. 1.4. EULER theory for incompressible machines. 1.5. Energy characteristics. II. DIMENSIONAL ANALYSIS AND SIMILITUDE OF TURBOMACHINES 2.1. Dimensional analysis. 2.2. VASCHY Theorem - BUCKINGHAM 2.3. Similarity of incompressible fluid turbomachines. RATEAU coefficients. Specific coefficients. Machines in similar operation. Classification of turbomachines. CORDIER diagram. III. AXIAL TURBOMACHINES IN INCOMPRESSIBLE FLUID 3.1. Constituent bodies. 3.2. Flow modelling. Decomposition of the speed field. Transfer of energy within an axial drive wheel. Height control indicated by a tilter. Energy conversion within a rectifier. 3.3. Dynamic behavior of grating blades. Circonferential development of a radiant grid. Representation by a parallel flat grid. Distinctions in flow analysis through fixed grids and moving grids. General reviews. Modeling of non-viscous fluid forces. Aerodynamic approach to actual deviation and energy losses. Height indicated, efficiency indicated and flow rate. 3.4. Radial balance. Special disposal laws. Free Vortex. Forced Vortex.
Assessment
Duty to be monitored Ventilation calculation project
References
Kovats, Pumps, fans, centrifugal and axial compressors. Dunod. Lexis, Fan Practice. Paris edition. Paraschivoiu, Wind Turbine Design : With Emphasis on Darrieus Concept. PIP. Hau, Wind Turbines : Fundamentals, Technologies, Application, Economics. Springer.
Skills
2| Ref. | Verb | Description | Level |
|---|---|---|---|
| C1_2 | analyze | Analyze solutions offered by suppliers | 2 |
| C3_2 | calculate | Calculate the physical dimensions to meet a Workbook | 2 |