Hydraulic turbomachines

ME-453 / 4 credits

Teacher: Vagnoni Elena

Language: English

Summary

Master lecture on Hydraulic Turbomachines: impulse and reaction turbines,pumps and pump-turbines.

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.
  • 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 a type of hydraulic turbine
  • Sketch the layout of a hydraulic turbomachine
  • Select appropriately the dimensions of a hydraulic turbomachine

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

In the programs

  • Semester: Fall
  • Exam form: Written (winter session)
  • Subject examined: Hydraulic turbomachines
  • Courses: 3 Hour(s) per week x 14 weeks
  • Exercises: 1 Hour(s) per week x 14 weeks
  • Type: optional
  • Semester: Fall
  • Exam form: Written (winter session)
  • Subject examined: Hydraulic turbomachines
  • Courses: 3 Hour(s) per week x 14 weeks
  • Exercises: 1 Hour(s) per week x 14 weeks
  • Type: optional
  • Semester: Fall
  • Exam form: Written (winter session)
  • Subject examined: Hydraulic turbomachines
  • Courses: 3 Hour(s) per week x 14 weeks
  • Exercises: 1 Hour(s) per week x 14 weeks
  • Type: mandatory
  • Semester: Fall
  • Exam form: Written (winter session)
  • Subject examined: Hydraulic turbomachines
  • Courses: 3 Hour(s) per week x 14 weeks
  • Exercises: 1 Hour(s) per week x 14 weeks
  • Type: mandatory
  • Semester: Fall
  • Exam form: Written (winter session)
  • Subject examined: Hydraulic turbomachines
  • Courses: 3 Hour(s) per week x 14 weeks
  • Exercises: 1 Hour(s) per week x 14 weeks
  • Type: optional
  • Semester: Fall
  • Exam form: Written (winter session)
  • Subject examined: Hydraulic turbomachines
  • Courses: 3 Hour(s) per week x 14 weeks
  • Exercises: 1 Hour(s) per week x 14 weeks
  • Type: optional
  • Semester: Fall
  • Exam form: Written (winter session)
  • Subject examined: Hydraulic turbomachines
  • Courses: 3 Hour(s) per week x 14 weeks
  • Exercises: 1 Hour(s) per week x 14 weeks
  • Type: optional
  • Exam form: Written (winter session)
  • Subject examined: Hydraulic turbomachines
  • Courses: 3 Hour(s) per week x 14 weeks
  • Exercises: 1 Hour(s) per week x 14 weeks
  • Type: optional

Reference week

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