Radiation and Combustion Effects of Hydrogen Enrichment on Biomethane Flames

Processes, Год журнала: 2025, Номер 13(4), С. 1048 - 1048

Опубликована: Апрель 1, 2025

Hydrogen has been presented as a promising energy vector in decarbonized economies. Its singular properties can affect important aspects of industrial flames, such the temperature, emissions, and radiative/convective transfer balance, thus requiring in-depth studies to optimize combustion processes using this fuel isolate or combination with other renewable alternatives. This work aims conduct detailed numerical analysis temperatures gas emissions biomethane enriched different proportions hydrogen, intent contribute understanding impacts natural surrogate on practical applications. RANS k-ω k-ϵ turbulence models were combined GRI Mech 3.0, San Diego, USC mechanisms ANSYS-Fluent 2024-R2 softwareto evaluate its performance regarding flame prediction. The Moss–Brookes model was adopted predict soot formation for methane flames by solving transport equations normalized radical nuclei concentration mass fraction. Discrete Ordinates (DOs) method gray band applied solve Radiation Transfer Equation (RTE). results experiments simulations highlight importance carefully selecting chemical kinetics an accurate representation real-scale burners. Relative mean errors 1.5% 6.0% registered temperature pollutants predictions, respectively, USD scheme k-omega presenting most results. operational hydrogen enrichment accessed system. With 15% blending, obtained indicate 73% penalty CO increase 6% NO 34 K increase. Also, reduction radiation due observed concentrations above 20%, behavior that systems those glass ceramics industries.

Язык: Английский

Numerical Analysis of Combustion Characteristics and Emissions of Recycled Flare Gas in Ethylene Cracking Furnaces

Journal of Cleaner Production, Год журнала: 2025, Номер unknown, С. 145510 - 145510

Опубликована: Апрель 1, 2025

Язык: Английский