Adiabatic combustion temperature
The adiabatic combustion temperature is a parameter from engineering and combustion theory . It characterizes a combination of fuel and oxidizer , the state of which is known before the start of combustion.
The adiabatic combustion temperature is the temperature that results after the complete combustion process if the gas mixture has not exchanged any heat with the environment during the combustion (therefore adiabatic). The adiabatic combustion temperature is a theoretical maximum value which cannot be reached in practice.
I. d. As a rule, the flame temperature of a combustion is below the adiabatic combustion temperature, since the flame gives off part of the energy released by the combustion as heat to the environment.
The following variables influence the adiabatic combustion temperature:
- The calorific value of the fuel . (The calorific value is used instead of the calorific value , since it is assumed that water is in gaseous form after combustion)
- The chemical composition of the fuel
- The composition of the oxidizer (e.g. air )
- The starting temperatures of the fuel and oxidizer
- The air ratio
literature
- Reinhard Leithner, Bernd Epple, Wladimir Linzer, Heimo Walter: Simulation of power plants and thermal systems . Springer, September 1, 2009, ISBN 978-3-211-29695-0 , p. 245.
proof
- ↑ Theoretical maximum value ( Memento from March 14, 2016 in the Internet Archive )
Web links
- Fuel characterization (accessed April 6, 2020)
- Application of the principle of absolute enthalpies and entropies for the thermodynamic calculation of chemical energy conversion processes (accessed on April 6, 2020)
- Avoidance of superheater corrosion due to external overheating (accessed April 6, 2020)
- Thermal design of boilers for the incineration of residues - basics and corrosion diagram (accessed on April 6, 2020)
- Thermodynamically based limit value definition (accessed on April 6, 2020)