Combustion theory
The theory of combustion , more rarely also called combustion science or science , is a scientific subject that deals with the chemical and physical processes during combustion and the effects within flames and fires .
Combustion theory is largely a sub-area within physical chemistry , but also touches on heat theory (thermodynamics), fluid mechanics and other areas of physics.
application
Combustion theory forms the knowledge base for the technical use of fire by people in "utility / purpose fires", such as those used in combustion technology in internal combustion engines or in pyrotechnics . There is a close connection to fuel technology here .
At the same time, however, it also forms the basis for fire protection theory , which deals with the prevention of " damaging fires " (fires) and for fighting them by the fire brigade .
A specialty within combustion theory is explosion theory, which deals with explosive combustion. Applications exist on the side of the useful fire in pyro and blasting technology , with the damaging fire in explosion protection .
Content
As part of the combustion theory, the following are examined:
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Chemical reactions : stoichiometry and thermodynamics (substance quantity and energy balance)
- Main reactions, especially oxidation of the fuel
- Side reactions, especially formation of air pollutants
- Physical processes
- Mass transfer in the flame: mixing of fuel, oxidizing agent and exhaust gas, diffusion processes
- Heat transfer within the fire and to the environment
- Fluid mechanical and dynamic effects: formation and repercussions of turbulence, vibrations, pulsations, ...
- Reaction kinetics (mixing, ignition, burn-off, burn-out, ...)
- Modeling the combustion process
literature
- Jürgen Warnatz, Ulrich Maas, Robert W. Dibble: Combustion: Physico-chemical principles, modeling and simulation, experiments, generation of pollutants . 3. Edition. Springer, 2001, ISBN 3-540-42128-9 ( limited preview in Google book search).
- Franz Joos: Technical Combustion: Combustion Technology, Combustion Modeling, Emissions . Springer, 2006, ISBN 3-540-34333-4 ( limited preview in Google book search).
- Gisbert Rodewald: fire theory . Fire protection book series. 6th edition. W. Kohlhammer Verlag, 2007, ISBN 3-17-019129-2 ( limited preview in Google book search).
- Norbert Peters: Technical combustion . Lecture reprint. Institute for Technical Combustion at RWTH Aachen University , Aachen 2006 ( full text as PDF ).
- Fritz Schuster: Combustion theory . Oldenbourg R. Verlag, 1982, ISBN 3-486-38491-0 .
- Franz Seufert: Combustion theory and combustion technology . Julius Springer, Berlin 1921.
