The project “NOx Formation Mechanism and Control Strategy in Hydrogen Turbulent Combustion” is a collaboration between KTH and industrial partners in the steel and energy sectors. It aims to support the transition toward fossil-free industrial processes by enabling hydrogen-based combustion in high-temperature applications, particularly in iron ore pelletizing. Iron ore pelletizing is a critical step in the steelmaking value chain, converting fine iron ore into pellets suitable for use in blast furnaces or direct reduction processes. Currently, many industrial pelletizing plants rely on fossil fuels such as coal and oil, which lead to significant CO₂ and NOx emissions. Hydrogen represents a promising fossil-free alternative; however, it introduces new challenges such as increased NOx formation and potential risks to burner integrity. The core objective of this project is to develop advanced simulation tools for turbulent hydrogen combustion in industrial furnaces. These tools will provide predictive capabilities to support the design and optimization of hydrogen burners, with a focus on NOx formation, flame stability, and thermal efficiency. The project will produce high-fidelity models incorporating finite-rate chemical kinetics and accounting for the unique behavior of hydrogen flames. These models will be validated against experimental data and adapted for application in full-scale industrial scenarios. The university team contributes specialized expertise in computational combustion modeling, using customized solvers built on OpenFOAM for hydrogen and hydrogen-containing fuels. Industrial partners provide domain knowledge in furnace operations, process parameters, and integration requirements. Together, the consortium will develop accurate sub-models for combustion and emissions across both steady-state and transient conditions. The outcomes will address key knowledge gaps in hydrogen combustion under real-world industrial conditions and provide simulation-based design tools to accelerate the transition toward fossil-free production. The results are expected to enhance safety, efficiency, and environmental performance in sectors where high-temperature combustion remains essential. This project directly contributes to national and EU-wide decarbonization targets by enabling practical implementation of hydrogen technologies in the heavy industry, supporting the shift toward a sustainable and low-emission future.