Fig. 1. Atmospheric jet plasma combustion generation device

Fig. 2. Effect of different discharge voltage on the emission spectra intensity of OH(A-X), CH(A-X), C₂(d)

Fig. 3. Effect of premixed oxygen flow rate on flame morphology

Fig. 4. (a) When Φ=4, the flame morphology changes under different discharge voltage; (b) Morphology of non-premixed flame with a voltage of 22 kV

Fig. 5. Spectrogram of 1 cm flame at 0 and 22 kV discharge voltage

Fig. 6. Effect of discharge voltage on the emission spectrum intensity of OH(A-X), CH(A-X) and C₂(d) with different air-fuel ratios was investigated