Duration
20h Th, 8h Ex., 2h Labo.
Number of credits
| Master of Science (MSc) in Electromechanical Engineering | 3 crédits | |||
| Master of Science (MSc) in Mechanical Engineering (EMSHIP+, Erasmus Mundus) | 3 crédits |
Lecturer
Language(s) of instruction
French language
Organisation and examination
Teaching in the first semester, review in January
Schedule
Units courses prerequisite and corequisite
Prerequisite or corequisite units are presented within each program
Learning unit contents
- Classification and use of turbomachines
- Recapitulation of fluid dynamics: conservation of mass, momentum and mechanical energy; dynamic similarity.
- Hydraulic circuits: total, manometric and dynamic head; losses; energy grade line.
- Cavitation: physical phenomenon, NPSH;
- Turbomachinery fluid dynamics: force, torque and energy transfer; Eulers equation of turbomachinery, velocity triangles; similarity.
- Incompressible flow in turbomachinery passages: forces and energy transfer in stationary and moving axial blade passages; stages, degree of reaction; flow and forces in stationary and rotating radial flow passages;
- Pumps and fans: classification and similarity; components; energy balance; cavitation; characteristic curves of centrifugal and axial pumps; use in circuits and regulation;
- Hydraulic turbines: classification and similarity; components, power balance, characteristic curves and regulation of Pelton/Turgo, Francis, Deriaz/Kaplan/bulb turbines; cavitation;
- Wind turbines: classification, general principles of horizontal and vertical axis wind turbines; Betz limit; blade design of HAWT following Betz and Schmitz; regulation.
Learning outcomes of the learning unit
The first part of the course is dedicated to hydraulic pumps and turbines. At the end of the course, the student should
- understand the operation principles and classification of different types of machines
- understand, evaluate and use the power balance of the machine and its installation
- understand the off-design operation, regulation and the limits of operation
- is able to calculate the performance, global dimensions and flow conditions in the machine
- is able to compute the operating point and regulation of the machine in a hydraulic circuit
- understands the operating principles and classification of different wind turbine types
- understands the aerodynamic considerations and design of horizontal axis wind turbines
- understands how wind turbines are regulated
This course contributes to the learning outcomes I.1, I.2, II.1, III.1, III.2, IV.1, IV.3, VI.1, VI.2, VII.2 of the MSc in electromechanical engineering.
This course contributes to the learning outcomes I.1, I.2, II.1, III.1, III.2, IV.1, IV.3, IV.4, VI.1, VI.2, VII.2 of the MSc in mechanical engineering.
Prerequisite knowledge and skills
fluid mechanics
Planned learning activities and teaching methods
Two lab exercises are foreseen (2 hours) in which a two-person team of students measures the characteristics of a hydraulic machine.
Mode of delivery (face to face, distance learning, hybrid learning)
Face-to-face course
Recommended or required readings
Course notes are available, as well as a collection of solved exercises.
Exam(s) in session
Any session
- In-person
written exam ( open-ended questions ) AND oral exam
- Remote
written exam ( open-ended questions ) AND oral exam
Written work / report
Additional information:
The evaluation is based upon the laboratory reports, a written exercise exam and an oral exam on the theory, contributing in equal parts to the final grade.
Work placement(s)
Organizational remarks
This course is organized throughout the quadrimester, by live lectures of 2h. Per session, an extra half hour is foreseen for questions on theory and exercises.
The date of labs and oral exam (within the foreseen period) will be organised individually with the student.
Contacts
Teacher : Koen Hillewaert (koen.hillewaert@uliege.be) Assistant : Nicolas Leclère (n.leclere@uliege.be)