液膜式気流微粒化熱料噴射弁の噴霧特性に関する実験的研究

概要

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For recent jet engine combustor, airblast atomizer has been employed. This airblast atomizer has advantages of good atomization and strong air-fuel mixing at high loading, while disadvatages of poorer ignition characteristics and narrower flame stability region compared with pressure atomizer, because of poor atomization and poor spatial fuel distribution at low loading. In this study a prefilming air atomizer is proposed, whose spray characteristics, that is, fuel droplet size, effect of air velocity profile on fuel distribution and etc. are shown. Also this paper deals with the influence of the configuration of the venturi passage existing between the primary swirler and the secondary swirler at low power on the droplet size, the droplet size distribution and the spatial distribu-tion of fuel droplet by experiment. As results, it was found the atomization and spatial distribution of fuel depend largely on the configuration of the venturi passage.
社団法人日本ガスタービン学会の論文
2001-05-20