Hydraulic turbomachines
Summary
Master lecture on Hydraulic Turbomachines: operating principles and design of impulse and reaction turbines, industrial pumps and pump-turbines.
Content
- Fundamental equations for turbomachines operation: mass conservation and specific energy equation for turbulent flows, 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, 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.
- Sustainability in turbomachines manufacturing and operation
Learning Prerequisites
Recommended courses
Incompressible Fluids Mechanics
Introduction to turbomachines
Learning Outcomes
By the end of the course, the student must be able to:
- Formulate the operating point of a hydraulic turbomachine
- Specify types and components of hydraulic turbine
- Design the layout of a hydraulic turbomachine
- Select appropriately the dimensions of a hydraulic turbomachine
- Describe The flow phenomena and instabilities in turbomachines
Transversal skills
- Use a work methodology appropriate to the task.
- Communicate effectively with professionals from other disciplines.
- Assess one's own level of skill acquisition, and plan their on-going learning goals.
Teaching methods
ex cathedra lectures with working case studies
Expected student activities
attendance at lectures completing exercises and reading written material
Assessment methods
written exam
Resources
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
Ressources en bibliothèque
Notes/Handbook
slides handout Handbook
Moodle Link
Prerequisite for
Cavitation, Hydroacoustic, Master Project
Dans les plans d'études
- Semestre: Automne
- Forme de l'examen: Ecrit (session d'hiver)
- Matière examinée: Hydraulic turbomachines
- Cours: 3 Heure(s) hebdo x 14 semaines
- Exercices: 1 Heure(s) hebdo x 14 semaines
- Type: optionnel
- Semestre: Automne
- Forme de l'examen: Ecrit (session d'hiver)
- Matière examinée: Hydraulic turbomachines
- Cours: 3 Heure(s) hebdo x 14 semaines
- Exercices: 1 Heure(s) hebdo x 14 semaines
- Type: optionnel
- Semestre: Automne
- Forme de l'examen: Ecrit (session d'hiver)
- Matière examinée: Hydraulic turbomachines
- Cours: 3 Heure(s) hebdo x 14 semaines
- Exercices: 1 Heure(s) hebdo x 14 semaines
- Type: obligatoire
- Semestre: Automne
- Forme de l'examen: Ecrit (session d'hiver)
- Matière examinée: Hydraulic turbomachines
- Cours: 3 Heure(s) hebdo x 14 semaines
- Exercices: 1 Heure(s) hebdo x 14 semaines
- Type: obligatoire
- Semestre: Automne
- Forme de l'examen: Ecrit (session d'hiver)
- Matière examinée: Hydraulic turbomachines
- Cours: 3 Heure(s) hebdo x 14 semaines
- Exercices: 1 Heure(s) hebdo x 14 semaines
- Type: optionnel
- Semestre: Automne
- Forme de l'examen: Ecrit (session d'hiver)
- Matière examinée: Hydraulic turbomachines
- Cours: 3 Heure(s) hebdo x 14 semaines
- Exercices: 1 Heure(s) hebdo x 14 semaines
- Type: optionnel
- Semestre: Automne
- Forme de l'examen: Ecrit (session d'hiver)
- Matière examinée: Hydraulic turbomachines
- Cours: 3 Heure(s) hebdo x 14 semaines
- Exercices: 1 Heure(s) hebdo x 14 semaines
- Type: optionnel
- Forme de l'examen: Ecrit (session d'hiver)
- Matière examinée: Hydraulic turbomachines
- Cours: 3 Heure(s) hebdo x 14 semaines
- Exercices: 1 Heure(s) hebdo x 14 semaines
- Type: optionnel