Experimental study on ignition and lean blowout characteristics of high temperature rise combustor

Ignition and lean blowout characteristics are an important performance index of the Aeroengine combustor, which is directly related to the reliability of the whole engine. The ignition process of the combustor was filmed by a CCD camera, and three stages of successful ignition were obtained. By changing the intake conditions, the variation of the minimum ignition energy in the fuel-air ratio (FAR) is tested. With the decrease of the FAR, the minimum ignition energy increases and there is a sudden increase process. As the room temperature and pressure conditions, the lean blowout (LBO) FAR is roughly 0.014, and Increasing kerosene temperature can improve the LBO performance in the combustor.