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Thermophysics and Aeromechanics

2020 year, number 4

Liquid fuel spraying by a high-speed steam jet

I.S. Anufriev1, E.Yu. Shadrin1, E.P. Kopyev1, O.V. Sharypov1, V.V. Leschevich2
1Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
2Luikov Institute of Heat and Mass Transfer NASB, Minsk, Belarus
Keywords: liquid fuel, steam, spraying, shadow photography method, size distribution

Abstract

The direct shadow photography method was applied for study of size distribution of droplets produced in liquid fuel atomization by a high-speed jet of superheated steam. This approach for fuel spraying allows eliminating the clogging of fuel lines and atomizers used for combustion of substandard liquid hydrocarbons. The setup has a long-focus microscope lens with optical magnification 7:1; this allows measuring the particles with the size starting from 1 µm. Experiments revealed that the prevailing size of droplets in the fuel spray is 1-2 µm.