Chemical Energy Conversion II
The class is currently only offered in German!
It is taught in the winter semester.
Dates
Lecture
Thursday, 10:30 - 12:00, H06 (CARL) (12.10.2023 - 01.02.2024)
Exercise
Friday, 12:30 - 14:00, H05 (CARL) (13.10.2022 - 02.02.2023)
Exam
Friday, 23.02.2024, 08:30-10:30 (multiple locations)
Office hours
Fridays (appointment required)
Lecture
Registration: RWTHonline
Lecture and exercise share one moodle room.
Lecture slides, script, and exercises -> RWTHmoodle
Course Description of Lecture and Exercise
Laminar Flames
- Chemical kinetics: Elementary reactions, reaction rates, catalysis, combustion of hydrocarbons, reaction mechanisms, emissions
- Laminar premixed flames: Overview and introduction, laminar burning velocity , thermal diffusive instabilities, flame structure
- Laminar diffusion flames: Overview and introduction, mixture fraction, laminar jet flames
Turbulent Combustion
- Theory of turbulent Flows: Characteristics of turbulent flows, averaging/decomposition of statistical properties, specific flow cases (e.g. isotropic turbulence), derivation of the Reynolds-equation, k- and epsilon-equation, turbulence models, turbulent length and time scales, Kolmogorov hypothesis, balance equation of reacting scalars
- Turbulent premixed flames: Length- and velocity scales of turbulent combustion, regime diagram, turbulent flame velocity
- Turbulent diffusion flames: turbulent jet flames
Introduction to modeling of turbulent combustion
- Simple models illustrated by example of the flow solver "Fluent"
- Modeling of turbulent premixed flamers: Introduction to statistical Methods (PDF, CDF,...), BML-Model, G-equation/Level-Set-Ansatz
- Modeling of turbulent diffusion flames: Flamelet-Koncept
Multiphase combustion
- Engineering Application
- Phenomenological description of the breakup process
- Single droplet flame
- Modeling and simulation of multiphase flows