Abstract
The previously developed numerical model available for predicting nitrogen oxide emissions uses flamelet approach to calculate the flame properties and estimates the concentration of NOX with GRI 3.0 mechanism by solving the species transport equation. The existing model is further optimized to reduce the computation time without losing the accuracy. Three approaches, by modifying the reaction rate calculation method, by predicting the initial values and by using dynamic mesh refinement, were implemented on OpenFOAM and analyzed with experimental data from Sandia Flame D. The application of post-processor in simulating an industrial burner of 850 kW to determine nitrogen oxide emissions is also demonstrated.
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