B-21 セラミック部材を組み込んだ小型ガスタービンの試験運転(開発・性能I,一般講演)

概要

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To obtain a micro gas turbine with high turbine inlet temperature and efficiency, a series of running tests has been carried out. J-850 jet engine (Sophia Precision Co., Ltd.) was chosen as a base line machine. The turbine nozzle and the rotor are replaced to ceramic type. The ceramic nozzle vanes can be installed on a metal disk very simply. The disk structure enables us to replace blades with various shape and attack angles. The kinetic output of the exhaust gas of type 3a was 20kW and its efficiency was about 11.5% at 120,000 rpm of the rotating speed. Preheating of engine and spark ignition enables stable starting with kerosene.
公益社団法人日本ガスタービン学会の論文
2006-10-01