Abstract The temporal dynamics of the spatial distribution atomic hydrogen and oxygen in a lean methane–air flame, forced by nanosecond repetitively pulsed discharge-induced plasma, are investigated via femtosecond two-photon absorption laser-induced fluorescence technique. Plasma luminescence that interferes with from H O atoms was observed to decay completely within 15 ns, which is minimum de...

Ammonia combustion appears as a meaningful way to retrieve stored amounts of excess variable renewable energy, and the spark-ignition (SI) engine has been proposed practical conversion system. The present work aims at elucidating characteristics ammonia blends in engine-relevant turbulent conditions. To that end, laminar flame experiments were conducted constant-volume vessel conditions 445 K 0...