411 Modeling of Hydrogen/Nitrogen Turbulent Diffusion Flame Using a Moment Method Being Able to Handle Detailed Chemical Kinetics

2005 ◽  
Vol 2005.7 (0) ◽  
pp. 29-30
Author(s):  
Susumu Noda ◽  
Atsushi Oku ◽  
Kunihiko Yamamuro
Keyword(s):  
Chemical Kinetics ◽  
Diffusion Flame ◽  
Turbulent Diffusion ◽  
Moment Method ◽  
Detailed Chemical Kinetics ◽  
Turbulent Diffusion Flame ◽  
Detailed Chemical

Simulation of H2-Air Turbulent Diffusion Flame by the Combustion Model Using Chemical Equilibrium Combined With the Eddy Dissipation Concept

2009 ◽  
Author(s):  
Kazui Fukumoto ◽  
Yoshifumi Ogami
Keyword(s):  
Chemical Equilibrium ◽  
Diffusion Flame ◽  
Turbulent Diffusion ◽  
Combustion Products ◽  
Combustion Model ◽  
Intermediate Species ◽  
Turbulent Diffusion Flame ◽  
Chemical Mechanisms ◽  
Equilibrium Method ◽  
Detailed Chemical

This research aims at developing a turbulent diffusion combustion model based on the chemical equilibrium method and chemical kinetics for simplifying complex chemical mechanisms. This paper presents a combustion model based on the chemical equilibrium method and the eddy dissipation concept (CE-EDC model); the CE-EDC model is validated by simulating a H2-air turbulent diffusion flame. In this model, the reaction rate of fuels and intermediate species is estimated by using the equations of the EDC model. Further, the reacted fuels and intermediate species are assumed to be in chemical equilibrium; the amount of the other species is determined from the amount of the reacted fuels, intermediate species, and air as reactants by using the Gibbs free energy minimization method. An advantage of the CE-EDC model is that the amount of the combustion products can be determined without using detailed chemical mechanisms. The results obtained by using this model were in good agreement with the experimental and computational data obtained by using the EDC model. Using this model, the amount of combustion products can be calculated without using detailed chemical mechanisms. Further, the accuracy of this model is same as that of the EDC model.

Sign in / Sign up

Export Citation Format

Share Document