Experimental study on effect of gas concentration on characteristic of visible light emitted by gas explosion in induction period
LI Shu-gang
LI Xiao-bin
CHENG Lian-hua
LIN Hai-fei
Abstract：The gas explosion experiment was made in the small scale laneway system. The characteristic of the visible light emitted by the gas explosion in the initial stages was shot by the fast camera. The data was analyzed by the soft-ware named Matlab. The distribution of the visible light emitted by the gas explosion in the induction period and the characteristic data of the maximum of the lightness of the visible light was educed. The effect of the concentration of gas to the characteristic data of the visible light was analyzed in detail. The results show that the biggest lightness, the average lightness and the biggest rate of change of the visible light in induction increase with the concentration of gas increasing, which is mainly because of the differences of the reaction degree of the gas combustion and the energy emitted by the gas combustion with the different concentration of gas. The more complete the reaction degree of the gas combustion, the less the lightness of visible light emitted by the gas combustion. The more great the energy emitted by the gas combustion, the more great the lightness of visible light. It is not visible that the concentration of the gas affects to the threshold of the lightness of visible light to judge ignition which is much the same, so the criterion of judging ig-nition becomes easier.
Keywords：gas concentrationgas explosioninduction period of gas explosionvisible lightlightness
Publication Date：2010-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 241-245 )