Nitrogen/argon diluted acetylene and ethylene blue flames under infrared CO2 laser irradiation
Peter V. Pikhitsa,
Daegyu Kim,
Mansoo Choi
Affiliations
Peter V. Pikhitsa
National Creative Research Initiatives Center for Nano Particle Control, Division of World Class University Multiscale Mechanical Design, Institute of Advanced, Machinery and Design, School of Mechanical and Aerospace Engineering, Seoul National University, 151-742, Seoul, Korea
Daegyu Kim
National Creative Research Initiatives Center for Nano Particle Control, Division of World Class University Multiscale Mechanical Design, Institute of Advanced, Machinery and Design, School of Mechanical and Aerospace Engineering, Seoul National University, 151-742, Seoul, Korea
Mansoo Choi
National Creative Research Initiatives Center for Nano Particle Control, Division of World Class University Multiscale Mechanical Design, Institute of Advanced, Machinery and Design, School of Mechanical and Aerospace Engineering, Seoul National University, 151-742, Seoul, Korea
We investigated changes in emission spectra from nitrogen/argon diluted laminar diffusion acetylene and ethylene blue flames irradiated by a powerful cw infrared CO2 laser. The changes in the radical emission bands can be interpreted as an indication of laser-induced decomposition of ethylene (for laser absorbing C2H4 fuel) and of laser-absorbing intermediates (for non-absorbing C2H2 fuel). The results indicate that released active hydrogen plays an important role in addition/abstraction reactions without any participation of oxygen.
