Teaching content:

1. Introduction
2. Basic principles
3. System analysis
4. Elementary theory
5. Operating behavior, characteristic curves
6. Similarity, key figures
7. Control
8. Wind turbines, propellers
9. Cavitation
10. Hydrodynamic couplings, converters

Prerequisites:

2157432 cannot be combined with the course 2157451 (Wind and Hydropower).

Recommendations:

2153412 Fluid Mechanics

Learning objectives:

Students acquire the ability to name the fundamentals of hydraulic fluid machinery (pumps, fans, water turbines, wind turbines. Hydrodynamic couplings and converters) and apply them to problems in various areas of engineering, in particular mechanical engineering.

In the lecture, the basics for the calculation and operation of hydraulic flow machines (pumps, fans, water turbines, wind turbines. Hydrodynamic couplings and converters). The conservation laws for mass, momentum and energy are applied to turbomachines and their systems. The Euler equation for turbomachines and the operating characteristics of turbomachines are derived on the basis of the velocity diagrams in the blade grid. Dimensionless characteristic numbers are introduced and their meaning and use are presented. The operating behavior of turbomachines in interaction with the system is discussed. The basics of cavitation and how to avoid it are covered. Special designs such as wind turbines, propellers and hydrodynamic couplings and converters are explained.

The students are thus able to understand the mode of operation of hydraulic turbomachines and their

interaction with typical systems in which they are used.

Workload:

Attendance time: 56 hours
Self-study: 150 hours

Exam preparation: 40 hours

Verification:

Oral or written (see announcement)
Aids: none

1. Fister, W.: Fluid Energy Machines I & II, Springer-Verlag
2. Bohl, W.: Fluid Energy Machines I & II . Vogel-Verlag
3. Gülich, J.F.: Centrifugal pumps, Springer-Verlag
4. Pfleiderer, C.: The centrifugal pumps. Springer-Verlag
5. Carolus, T.: Fans. Teubner-Verlag
6. Centrifugal pump lexicon. KSB Aktiengesellschaft
7. Zierep, J., Bühler, K.: Fundamentals of fluid mechanics. Teubner publishing house