Identification of the Features of the Unstable Flame Propagation by 4D Optical Spectroscopy and Color Speed Cinematography

N Rubtsov^1, , A Kalinin^{2, 3}, A Vinogradov⁴, A Rodionov⁵, K Troshin³, G Tsvetkov¹ and V Chernysh¹

¹Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences, Chernogolovka 142432, Moscow Region, Russia

²Ishlinsky Institute for Problems in Mechanics of Russian Academy of Sciences, Moscow 119526, Russia

³N.N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, 119991, Moscow, Russia

⁴Lomonosov Moscow State University, Faculty of Physics, Russia, 119991, Moscow, Russia

⁵Joint Stock Company “Reagent” Research & Development Center Russia, 125190, ab192, Moscow, Russia

Cite this paper:
N Rubtsov, A Kalinin, A Vinogradov, A Rodionov, K Troshin, G Tsvetkov and V Chernysh. Identification of the Features of the Unstable Flame Propagation by 4D Optical Spectroscopy and Color Speed Cinematography. Journal of Materials Physics and Chemistry. 2017; 5(1):11-19. doi: 10.12691/jmpc-5-1-2

Abstract

The specific features of combustion in flame cells caused by hydrodynamic instability are experimentally established. It is shown that each flame cell represents a separate "chemical reactor", and in the cell, the process of complete chemical transformation occurs. A cellular combustion regime of 40% H₂-air mixture in the presence of Pt wire within the interval 270-350 C was observed for the first time. It is shown that the regime is caused by the catalytic action of Pt containing particles formed by decomposition of volatile platinum oxide in the gas phase.

Keywords:
speed cinematography optical spectroscopy combustion ignition instabilities cellular catalysis hydrogen

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