"Tuning CO/CO2 Formation, Flame Temperature, and Ignition Delay Time Through Steam Dilution and Hydrogen Enrichment in Methane Oxy-Combustion"
This dataset contains numerical simulation results of methane oxy-combustion under varying levels of steam dilution and hydrogen enrichment. The fuel consists of methane with hydrogen addition, while the oxidizer is oxygen diluted with steam. The study investigates how steam dilution (0–40%) and hydrogen enrichment (0–5%) influence ignition behaviour, CO/CO2 formation and adiabatic flame temperature.
Simulations were performed using zero-dimensional, constant-pressure homogeneous reactor models with detailed chemical kinetics implemented in Cantera. The analysis is conducted in mixture-fraction space, allowing systematic investigation of ignition delay time (IDT), temperature evolution, and species distributions across a wide range of operating conditions.
The results demonstrate the dual role of steam dilution as a temperature-control mechanism and ignition inhibitor, and the effectiveness of hydrogen enrichment in enhancing reactivity and reducing ignition delay time. The dataset enables detailed analysis of the trade-offs between ignition performance, flame temperature reduction, and carbon conversion efficiency.
The simulation results are provided in files named according to the corresponding figures (e.g., Fig*.dat, ignition_.dat, profiles_.dat, adiabatic_*.dat), where each file is directly associated with a figure from the publication. A structured description linking files to figures is included in the accompanying documentation.
This work was supported by the National Science Center in Poland (Grant No. 2024/53/B/ST8/02908).
(2026)
