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Abstract
Master lecture on Hydraulic Turbomachines: impulse and reaction turbines,pumps and pump-turbines.
Objective
By the end of the course, the student must be able to: Formulate the operating point of a hydraulic turbomachine Specify a type of hydraulic turbine Sketch the layout of a hydraulic turbomachine Select appropriately the dimensions of a hydraulic turbomachine
Content
- Turbomachine equations, mechanical power balance in a hydraulic machines, moment of momentum balance applied to the runner/impeller, generalized Euler equation. - 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. - Centrifugal pump design: general architecture, energetic loss model in the diffuser and/or the volute, volute design, operating stability.
Resources
Lecture Notes
slides handout Handbook.
Literature
Bibliography P. HENRY: Turbomachines hydrauliques - Choix illustré de réalisation marquantes, PPUR, Lausanne, 1992. Franc, Avellan et al., Cavitation, EDP Grenoble, 1994 Handout and Scientifc Litterature from LMH, Industry, International Association
General Information
- Language
- English
- Levels
- MSC
- Frequency
- Yearly recurring
Examination
- Type
- graded semester performance
Course Components
| Type | Title | Time & Place | Hours |
|---|---|---|---|
| lecture with exercise |
Hydraulic Turbomachines (EPFL)
**Course at EPFL**
|
No time listed | 4 h weekly |
Offered In
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Nuclear Engineering Master (MSc Nuclear Engineering is a joint program of EPF Lausanne and ETH Zurich. The first semester takes place in Lausanne. Students therefore have to enroll at EPFL. For more information about the curriculum and courses see: ?)
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