Controlling emissions while maintaining product quality is a key challenge in rotary kiln operations. During the combustion process in the kiln and preheat zone, high levels of NOx emissions can be generated, requiring optimization of burner design to meet environmental regulations. Using CFD simulations, combustion flame behavior, temperature distribution, kiln wall heat flux, and exit flue gas properties were analyzed.
The study provided actionable insights into how new burner designs can reduce NOx formation without compromising temperature uniformity, pellet quality, or kiln efficiency. Explore how simulation supported cleaner and more efficient rotary kiln operation in this case study.