Flashing or thermodynamic breakup of a liquid jet occurs when a pressurized subcooled or saturated liquid is released to a lower pressure, resulting in violent vapor nucleation, expansion, and break up of the liquid phase. Flashing is known to produce very fine droplet atomization, often not possible by traditional mechanical means. In this work, flashing atomization is introduced in a spray bu...

A laboratory combustor was used to investigate the factors that influence the conversion of fuel nitrogen in coal during coal combustion. Fuel NO was isolated by experimentation utilizing Argon/Oxygen/Carbon Dioxide mixtures as the oxidant, and care was taken to compare cases with air at matched conditions. For both well mixed and slowly mixed flame types, fuel NO contributed over 75% of the to...

The extinction process of cup-burner flames under normal-gravity conditions were previously studied. As the low-speed diffusion flames behave differently in microgravity compared to those on earth, it is important to understand the structure of cup-burner flame and its extinction characteristics under 0g conditions. A numerical study was performed in the present paper using a time-dependent, ax...

Combustion instabilities in gas turbine engines often give rise to acoustic resonances. These resonances occur as manifestations of different acoustic modes, of which a single or multiple modes may be present. In this work, the acoustic behavior of a model gas turbine combustor, developed at DLR Stuttgart by Meier, was investigated using both syn(thetic) gas and standard hydrocarbon fuels. Syng...

In this study, we developed the design process and optimization of structural parameters a new low-NOx burner based on combustion technology flame stabilization principle. Firstly, basis two-stage swirl burner, applied fuel-graded introduced central nozzle structure to explore influence law graded NOx emissions. Secondly, previously optimized structure, matching between first- second-stage cycl...

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Abstract The paper presents a comparative analysis of experimental data on combustion liquid hydrocarbon fuels in the presence superheated steam two designs developed burners. By example diesel fuel burnt spray burner it is shown that lower values nitrogen oxide contents exhaust gases are achieved comparison with an evaporative burner. At that, content carbon monoxide some regimes for minimum t...

Crop farming systems in the Wimmera and Mallee region of Victoria are diverse. The environmental and economic conditions that prevail demand that farmers make constant changes and improvements to their farming systems. In this research the performances of four representative farming systems, designated ‘Reduced Till’, ‘Hungry Sheep’, ‘Fuel Burners’ and ‘No Till’, were examined and evaluated usi...

Demonstration of oxy-coal combustion is being planned for the old Youngdong unit 1 boiler in South Korea. The boiler is to be retrofitted to an opposed-wall-firing type with 100 MWe capacity for demonstration of oxy-fuel combustion while maintaining the original furnace shape of downshot firing. It is to be operated under oxy-coal combustion mode during demonstration periods while continuing co...

Preliminary studies of used fuel generated in the US Department of Energy’s Advanced Fuel Cycle Initiative have indicated that current used fuel transport casks may be insufficient for the transportation of said fuel. This work considers transport of three 5-year-cooled oxide advanced burner reactor used fuel assemblies with a burn-up of 160 MWD kg. A transport cask designed to carry these asse...