Laminar flame speed of different syngas compositions for varying thermodynamic conditions

摘要: Abstract Syngas (for synthetic gas) is a well known gaseous biofuel, also as producer gas or wood gas. It composed mainly of N2, CO2, CO, H2 and CH4, with varying shares depending on the gasification process biomass source. When syngas used in Internal Combustion engines for stationary electricity generation, operation modes have to be adapted. The problem that, moment, combustion parameters complex compositions are not fully covered by literature. In this study, laminar flame speeds Markstein lengths measured three compositions. These were chosen represent typical production types gasifiers (Updraft, Downdraft Fluidized Bed). Measurements made at initial temperatures (298–423 K), pressures (1–5 bar) equivalence ratios (0.6–1.4). method was outwardly propagating spherical method. Higher CO contents Updraft produced two times higher than Fluidbed composition. Results compared data from only previous studies but no quantitative agreement found. results obtained kinetic modeling four mechanisms provide global specially those CRECK mechanism that deviated experimental 5–10%.