Experimental Study of Ignition of Electrode Carbon by Thermal Radiation

This paper presents the results of an experimental study of the ignition of electrode carbon samples heated by an integral flux of thermal radiation. The experiments were carried out using an Uran-1 radiant heating system in the range of heat flux density incident on the sample surface 75–314 W/cm2 in oxygen at different pressures (0.1 and 1.1 MPa). Ignition temperature values and the dependence of the ignition delay time on the heat flux density were obtained. The formal kinetic constants of the process were determined from the measured dependences using a heterogeneous ignition model.