Characteristics of microexplosive dispersion of gel fuel particles ignited in a high-temperature air medium

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Abstract

An experimental study of the characteristics of the processes occurring during the ignition and combustion of single particles (10 mg) of typical gel fuel in a high-temperature air environment was carried out using a software and hardware complex consisting of a high-speed video camera, LED spotlight. The group of fuel compositions is prepared on the basis of oil-filled cryogels without and with 30 %(wt.) addition of solid finely dispersed components (coal particles, Si, and Cu). Polyvinyl alcohol (PVA) was used as an organic polymer thickener (10 %(wt.) in an aqueous solution). Fuel compositions are characterized by microexplosive dispersion of particles under conditions of intense heating. By varying air temperature in the range of 600–1000 °C, the velocities of movement of fine fragments after microexplosive dispersion of a droplet of fuel melt were determined.

About the authors

Dmitrii O. Glushkov

National Research Tomsk Polytechnic University

Author for correspondence.
Email: dmitriyog@tpu.ru

Candidate of Science in physics and mathematics, assistant professor, Heat Mass Transfer Laboratory

Russian Federation, Tomsk

Alexander G. Nigay

National Research Tomsk Polytechnic University

Email: agn4@tpu.ru

Candidate of Science in physics and mathematics

Russian Federation, Tomsk

Kristina K. Paushkina

National Research Tomsk Polytechnic University

Email: kkp1@tpu.ru

PhD student

Russian Federation, Tomsk

Andrey O. Pleshko

National Research Tomsk Polytechnic University

Email: p.andrey12@mail.ru

PhD student

Russian Federation, Tomsk

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