Modelling of heavy fuel oils combustion for power generation



MSc Thesis HFOHeavy Fuel Oil is a low-grade fuel produced by mixing the vacuum residue from petroleum distillation and lighter fractions as kerosene or diesel. It is widely used worldwide in marine transportation and steam and gas phase power plants. Critical aspects of this fuel are high viscosity and relevant sulfur content (up to 5 % w/w). When used in spray burners, due to the wide boiling range of its constituting compounds, micro-explosions can occur when the pressure of higher volatility compounds in the droplets overcomes the surface tension. These secondary explosions can lead to the formation of cenosphere, solid residuals that can be emitted as pollutant and strongly reduce the combustion efficiency.
This thesis aims at tackling this problem by developing multi-phase kinetic models (liquid/gas/solid) to be included in droplets combustion simulation tools.



Duration: 12 months

Experimental activities: no

Skills: basics of transport phenomena and chemical kinetics

Advisor: Alessio Frassoldati

People involved: Alberto Cuoci, Tiziano Faravelli, Marco Mehl