MODELLING OF THE VELOCITY AND TEMPERATURE CHANGES OF Cr3C2 PARTICLES IN THE PROCESS OF HIGH VELOCITY OXYGEN FUEL SPRAYING BY TWIN-COMBUSTION-CHAMBER BURNER

Abstract

A mathematical model describing changes in the velocity and temperature of the particles of the sprayedmaterial inside and outside of a two-chamber of high velocity oxygen fuelburner is given. MAPP gas and oxygen were taken as components of the fuel in the calculations. Determination of the 40 μm chromium carbide particles temperature and velocity is performed. The results show that, thanks to the original design of the burner, the conditions for thermal relaxation of the sprayed material are substantially improved, and the possibilities for controlling the spraying process are enhanced.

Keywords

• надзвукове газополуменеве напилювання
• двокамерний пальник
• карбід хрому
• математична модель
• коефіцієнт лобового опору
• ежектор
• число рейнольдса
• підкладка