This thesis experimentally investigates the influence of argon as an atomizing gas on the combustion of synthetic e-fuel and fossil diesel fuel in a gas turbine combustor.
Measurements were carried out on an experimental turbine system at turbine inlet temperatures ranging from 800 to 950 °C and atomizing gas pressures of 4 and 5 bar, using
either air or argon as the atomizing gas. The fuel and air mass flow rates, air ratio, primary air temperature, and concentrations of NO, CO, HC, O₂, and CO₂ in the exhaust gases were analysed. Compared with diesel fuel, e-fuel produced higher NO concentrations and lower CO and HC concentrations, which is attributed to its lower boiling point and higher hydrogen content. Increasing the atomizing gas pressure reduced CO and HC concentrations for both
fuels, with the average HC concentration decreasing by 42 ppm for diesel fuel and 65 ppm for e-fuel. The use of argon reduced NO concentrations for both fuels by an average of 2.5–4.7 ppm, while slightly increasing CO concentrations. The observed trends indicate that the choice of atomizing gas and atomization pressure can influence pollutant formation during the combustion of synthetic fuels in gas turbine engines.
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