Course syllabus
Turbulent förbränning
Turbulent Combustion
MVK135, 7,5 credits, A (Second Cycle)
Valid for: 2013/14
Decided by: Education Board E
Date of Decision: 2013-04-17
General Information
Elective for: M4
Language of instruction: The course will be given in English
Aim
The objectives of this course are to give a fundamental
understanding of turbulent combustion process found in typical
combustion devices; to give basic knowledge about the structures of
the reaction zones in turbulent flames and how turbulence and the
reaction zones affect each other; and to develop skills to analyze
and model turbulent combustion processes in engineering combustion
devices.
Learning outcomes
Knowledge and understanding
For a passing grade the student must
- be able to describe the basic transport processes involved in
combustion processes, i.e., transport of mass, momentum and
energy
- be able to describe basic chemical reactions involved in
combustion, i.e., chain initiating, branching and terminating
reactions and the effect of temperature and pressure on these
reactions
- be able to analyze basic flame structures in premixed flames,
diffusion flames, and partially premixed flames, and explain
different mechanisms of turbulence eddy and flame interaction
- be able to describe different modeling approaches for turbulent
combustion, and propose and apply relevant models for typical
engineering turbulent combustion processes
Competences and skills
For a passing grade the student must
- be able to use the knowledge of elementary reactions to
determine, for typical premixed flames, the flame propagation
properties, i.e., lean and rich flammability limits, burning
velocity, quenching distances
- be able to use flamelet theory to determine, for typical jet
diffusion flames, the flame quenching conditions, and to explain
the process of flame stabilization by the burner rim, the bluff
body and the inflow swirl
- be able to use relevant models to determine the composition and
temperature of gaseous mixture in the reaction zones and post-flame
zone of premixed turbulent flames
- be able to determine the regimes of turbulent premixed and
diffusion flames based on turbulent eddy scales and flame
scales
- be able to in groups, under the supervision of teachers, use
the theory and models discussed in the course to predict and
analyze typical turbulent combustion processes found in gas
turbines, piston engines and furnaces
Judgement and approach
For a passing grade the student must
- be able to actively participate the discussions about turbulent
combustion processes
- be able to in both written and oral form, present analysis of
turbulent combustion processes in typical engineering devices
Contents
The course starts by going through fundamental knowledge of
thermo-chemistry, chemical kinetics, transport processes and
fundamental equations for turbulent reacting flows. Then, laminar
premixed and non-premixed flames will be studied, followed by
turbulent flame theories and modeling of turbulent combustion.
Existing models for turbulent combustion process will be discussed,
based on systematical understanding on how turbulence and chemical
reaction interact. The last part of the course deals with
application of turbulent combustion theory and modeling to typical
engineering combustion devices, e.g., gas turbines, piston engines
and furnaces.
Examination details
Grading scale: TH
Assessment: To pass the course the student has to pass a written examination. In addition to this, obligatory home works and project works must be carried out satisfactorily. The obligatory home works shall be presented in written form. Project work shall be presented both orally and in a written report form.
Admission
Admission requirements:
Required prior knowledge: MMVF01 Thermodynamics and Fluid Mechanics, MVK140 Turbulence - Theory and Modelling.
The number of participants is limited to: No
Reading list
- S. R. Turns: An Introduction to Combustion: Concepts and Applications, 3rd Edition. McGraw-Hill, 2011, ISBN: 9780071086875.
Contact and other information
Course coordinator: Professor Xue-Song Bai, Xue-Song.Bai@energy.lth.se
Course homepage: http://www.energy.lth.se
Further information: The course will be based on lectures, exercise, projects and home works.