• Title/Summary/Keyword: 가스 터빈 엔진

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A Study of Inverse Modeling from Micro Gas Turbine Experimental Test Data (소형 가스터빈 엔진 실험 데이터를 이용한 역모델링 연구)

  • Kong, Chang-Duk;Lim, Se-Myeong;Koo, Young-Ju;Kim, Keon-Woo;Oh, Seong-Hwan;Kim, Ji-Hyun
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2009.11a
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    • pp.537-541
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    • 2009
  • The gas turbine engine performance is greatly relied on its component performance characteristics. Generally, acquisition of component maps is not easy for engine purchasers because it is an expensive intellectual property of gas turbine engine supplier. In the previous work, the maps were inversely generated from engine performance deck data, but this method is limited to obtain the realistic maps due to calculated performance deck data. Therefore this work proposes newly to generate more realistic compressor map from experimental performance test data. And then a realistic compressor map can be generated form those processed data using the proposed extended scaling method at each rotational speed. Evaluation can be made through comparison between performance analysis results using the performance simulation program including the generated compressor map and on-condition monitoring performance data.

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Inlet Distortion Test of Gas Turbine Engine (가스터빈 엔진의 입구 유동 왜곡 시험)

  • Lee, Jin-Kun;Lee, Kyung-Jae
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2007.04a
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    • pp.339-345
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    • 2007
  • Inlet distortion test was performed at Korea Aerospace Research Institute in order to evaluate the degradation of engine performance under the distorted inlet condition. In this paper, only the inlet pressure distortion was taken into consideration. During the development process of the inlet distortion test technique, variable distortion screen was designed and evaluated under various test conditions to establish the experimental database of distortion for engine test. The result of inlet distortion test for engine shows that the operating point was changed toward the worse direction and the degradation of engine performance by inlet distortion was verified.

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Study on the Braking Characteristics of Starting System Used for Initial Spin-up of Gas Turbine (가스터빈 초기 구동용 시동시스템의 제동특성 연구)

  • Song, Ju-Young;Park, Jun-Cheol;Lee, Ki-Hoon;Kim, Sung-Hyun;Nam, Sam-Sik
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2011.11a
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    • pp.379-382
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    • 2011
  • Engine test as well as unload test of starting motor itself was performed to evaluate the braking characteristics of starting system used for initial spin-up of gas turbine for power generation. Through the experimental evaluation of the braking performance with the capacity of braking resistor of the starting motor, we have achieved quantitative data to secure robust braking characteristics in emergency during the starting period of the gas turbine. It is possible to establish a capacity selection criterion of braking resistor to ensure the starting reliability of the gas turbine.

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