再生サイクルMGT用液体燃料焚きDLE燃焼器の開発

概要

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The authors have developed a liquid-fueled, low emissions, single can combustor for the RGT3R, Niigata's 300kW class industrial gas turbine engine, with the goal of satisfying the most stringent environmental requirements for distributed power generation systems in Japan. This paper describes these development efforts, which included non-reacting Computational Fluid Dynamics (CFD) analysis and combustion rig testing results. A lean premixed, pre-vaporized combustion concept is used to minimize emissions levels to meet the strictest emissions regulations in urban areas. This combustion system involves two pilot burners and two main burners. Each burner has a set of counter rotational axial swirlers to prevent flashback into premixing tubes. Main burners are axially staged from stable pilot burners' flames. The emissions target is less than 20ppm nitrogen oxides (NOx), 50ppm carbon monoxide (CO) and unburned hydrocarbons (UHCs) at dry 16% O_2 correction for kerosene, while operating above 50% load.
社団法人日本ガスタービン学会の論文
2006-01-20