Computational Analysis of Premixed Syngas/Air Combustion in Micro-channels: Impacts of Flow Rate and Fuel Composition

Due to increasing demand for clean and green energy, a need exists fuels with low emissions, such as synthetic gas (syngas), which exhibits excellent combustion properties has demonstrated promise in low-emission energy production, especially at microscales. However, due complicated flame microscale systems, it is of utmost importance describe syngas comprehend its respect boundary inlet conditions, geometric characteristics. The present work studied premixed two-dimensional channel, length 20 mm half-width 1 mm, using computational approaches. Specifically, fixed temperature gradient was imposed the upper wall, from 300 K 1500 outlet, preheat mixture, accounting conjugate heat transfer through walls. detailed chemistry ignition process imitated San Diego mechanism involving 46 species 235 reactions. For given stoichiometric containing various compositions carbon monoxide, methane, hydrogen, over range velocities, simulated, phenomena, ignition, stabilization, flames repeated extinction (FREI), were analyzed different metrics. stability time found correlate velocity mixture composition. Similarly, velocity, correlation composition further scrutinized.