Investigation into spontaneous ignition of propane-air and n-pentane-air mixtures in heated vessel at atmospheric pressure by means of high-speed cinematography
By means of high-speed cinematography spatial development of spontaneous ignition of propane-air, n-pentane-air and hydrogen-air mixtures at total pressures of about 1 atm and initial temperatures T = 600-800 K is studied. It is shown that the features of spatial development of spontaneous ignition depend on the state of reactor surface. It is established that an ignition initial center originates at reactor surface then the flame front from the center propagates into volume with the normal velocity corresponding to the reactor walls temperature and gas mixture composition.