圧縮機出口からの抽気がターボジェットエンジン性能に及ぼす影響

抄録

It is well known that the bleeding of compressed air is an effective method to avoid an unstable state such as surging in a compressor. A bleed hole has been provided at the compressor exit of a turbojet engine and experiments have been carried out to investigate engine performance changes as a result of bleeding. Also, using the performance analysis tool of gas turbine (GTPAT), a prediction of engine performance has been made based on the component matching theory. The comparison of analytical results with experiment data has been conducted. This paper also presents analytical results regarding how operating points and operating lines move away from the surge line on the compressor performance characteristic diagram due to the compressed air bleeding.