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Open AccessArticle

Ignition of Slurry Fuel Droplets with Different Heating Conditions

National Research Tomsk Polytechnic University, Tomsk 634050, Russia
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Energies 2019, 12(23), 4553; https://doi.org/10.3390/en12234553
Received: 24 October 2019 / Revised: 14 November 2019 / Accepted: 27 November 2019 / Published: 29 November 2019
This paper describes modern research methods of the ignition and combustion processes of slurry fuel droplets. The experiments were carried out using a muffle furnace to ensure the conditions of radiation heating, the hot surface to reproduce the conditions of conductive heating, the high-temperature channel with convective heating, the chamber with the processes of soaring, i.e., a significant increase in the time of fuel residence in the combustion chamber. We identified the differences in combustion modes, threshold ignition temperatures, delay times and durations of combustion processes. We obtained the quantitative differences in the characteristics of the ignition and combustion processes for typical registration methods. It was found that for all heating schemes, the minimum ignition temperatures have comparable values. Minimum ignition delay times were recorded during convective heating. The maximum combustion temperatures were achieved with radiation heating. We determined the values of limiting heat fluxes, sufficient to initiate the combustion of slurries fuels during conductive, convective and radiative heating. View Full-Text
Keywords: slurry fuel; droplet; particle; heating schemes; ignition; combustion slurry fuel; droplet; particle; heating schemes; ignition; combustion
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MDPI and ACS Style

Valiullin, T.; Vershinina, K.; Strizhak, P. Ignition of Slurry Fuel Droplets with Different Heating Conditions. Energies 2019, 12, 4553.

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