Measurement of Radical Luminescence Distribution under High Combustion Pressure

Abstract

The distribution of luminous intensity of radicals, CH and C_2 were measured under atmospheric pressure and high combustion pressure. From the experiment with the premixed laminar burner, it could be confirmed that the radical luminescence distribution and the distribution of radical luminous intensity ratio could be measured. And it was found that the luminous intensity of CH radical was greater than that of C_2 radical and the value of luminous intensity ratio became small as the mixture became rich. From the experiment with the combustion chamber, it was also found that the luminous intensity became strong as the combustion pressure rose and the value of luminous intensity ratio became large as the combustion pressure rose.