Experimental Characterization of Diesel Combustion in an Electrically Pre-heated Porous Media Burner

A novel liquid fuel spray and electric pre-heated porous media burner (PMB) with three flame types are investigated experimentally. Liquid diesel (0#) is used in the burner to understand its combustion characteristics. The evolution of the flame characteristics in a single injection cycle is determined from the influence of the height of the foam ceramic on the spray characteristics and the stability of the pre-heating temperature. The influence of the air flow and the fuel injection on the temperature inside the burner is also investigated. The results show that a ceramic foam at a distance of 3 cm from the nozzle improves the combustion of the fuel spray. The critical pre-heating temperature for a successful combustion of the burner is 689 °C. The flame is composed of a small flame, a moving flame, and a filtering flame with corresponding moving speeds of approximately 0 mm/s, 0.1 mm/s, and 1 m/s. Our results prove the feasibility of continuous combustion of diesel in an electric pre-heated PMB and reve...