Radiation and Combustion Effects of Hydrogen Enrichment on Biomethane Flames

Processes, Journal Year: 2025, Volume and Issue: 13(4), P. 1048 - 1048

Published: April 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.

Language: Английский

A comprehensive review of design optimization methods for hybrid electric vehicles

Renewable and Sustainable Energy Reviews, Journal Year: 2025, Volume and Issue: 217, P. 115765 - 115765

Published: April 19, 2025

Language: Английский