JSME International Journal Series B · 2004 · 34 citations · 4 references
EngineeringMechanical EngineeringCombustionInternal Combustion EnginesPropulsionCombustion In EnginesCombustion In Propulsion SystemsEngine Performance CharacteristicsGas Turbine CombustionGas Turbine EnginesMicromachiningCompressor PerformanceDesign SpeedGas Turbine CycleGas TurbinesMethaneMicro Gas Turbine CyclesTurbocharger DesignTurbocharger Performance Testing
Micromachine gas turbine with centrifugal impellers of 10mm diameter fabricated by 5-axis micro-milling is under development at Tohoku University, in conjunction with Ishikawajima-Harima Heavy Industries Co., Ltd. (IHI), Tohoku-Gakuin University, and Sankyo Seiki Mfg. Co., Ltd. The development is currently at the stage of proving the feasibility of the gas turbine cycle by component tests. Micro-combustors have been developed for both hydrogen and methane fuel. Over 99.9% of the combustion efficiency has been realized in both combustors and the baseline configuration of the combustor for the gas turbine is set. A compressor of 10mm diameter has been developed as a micromachined turbocharger. The performance test of the micromachined turbocharger has been started, and ran up to 566000rpm, which is approximately 65% of the design speed. Compressor performance has been successfully measured along a constant speed line at 55% of the design speed.
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