Research Information System
International Journal of Hydrogen Energy, vol.143, pp.978-988, 2025 (SCI-Expanded, Scopus)
In this study, a three-dimensional mathematical model designed for integrated staged combustion chambers used in large-scale coke ovens was created. This model was meticulously solved using Computational Fluid Dynamics (CFD) software, such as Ansys Fluent, and its results were validated against existing literature, with a focus on the central temperature. The analysis considered factors like temperature fluctuations within the coke bed and the concentration of NOX in the exhaust gases. The study emphasizes the crucial role that staged combustion plays in enhancing temperature uniformity within the coke oven and lowering NOX emissions in the exhaust, which is especially advantageous for larger coke oven systems. The research suggests that this model and the gathered data will be instrumental in advancing the development of large coke ovens with higher energy efficiency and lower emissions. In the conducted study, the NOX pollutant emission value in a non-staged combustion coke oven was measured at 8.26 ppm, while the application of staged combustion reduced this value to 4.81 ppm. This indicates that the staged combustion technique results in nearly a 50% reduction in NOX emissions. When a colorless distributed combustion technique was applied in the staged burner under a 15% O2/CO2 condition, the NOX pollutant emission value was further reduced to 0.187 ppm. As a result, an ultra-low (<1 ppm) emission level was achieved.