19.03.2024 - 10:07:55

14.03.2023

Exhaust Gas Recirculation (EGR) analysis of a swirl-stabilized pulverized coal flame with focus on NOx release using FPV-LES

https://authors.elsevier.com/a/1ghG73iH4M29L

In this study, highly-resolved FPV-LES are performed to investigate the combustion characteristics and the NOx-formation of a swirl-stabilized pulverized coal flame.

Two ways to determine NO species are investigated.

1. In a first approach, NO species is directly extracted from the flamelet library, leading to an overprediction of the experiments by a factor > 3.

2. In a second approach, an additional transport equation for NO is solved, in which the reaction source term is split into a formation and a rescaled consumption part.

The second approach better accounts for forward- and backward reactions of NO, resulting in a much better prediction of experimental data.

This work is a collaboration with the University of Stuttgart.