Abstract
The process of liquid hydrocarbon fuel disintegration into droplets under the action of a supersonic jet of superheated steam was studied by shadow photography and high-speed visualization. During the measurements operating parameters for the conditions of fuel spraying in a real burner were varied for three types of fuel: diesel, oil, and kerosene. For the first time, the photographs of the process of disintegration of various types of liquid hydrocarbon fuel during interaction with a supersonic gas jet were obtained. When oil flows onto the steam jet, thin threads and films of liquid with a chaotic structure are formed. The regime of droplet disintegration corresponds to the “catastrophic” one. It is shown that the proposed method of fuel spraying provides effective dispersion for high-quality combustion and it can be used in liquid fuel burners, even when burning liquid combustible waste, as well as in low-emission gas turbine engines. Size distributions of fuel droplets in the region of fuel ignition were obtained for different fuel and steam flow rates. The use of a long-focus lens allowed optical magnification of 7:1 and identification of droplets as small as 1 μm. For diesel and oil, the characteristic droplet size is 2 µm, and for kerosene, it is 1 µm.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
