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고강명(Kangmyung Ko),조수형(Su-Hyeocncng Cho),안철주(Chuljoo Ahn),이복원(Bokwon Lee) 한국추진공학회 2021 한국추진공학회 학술대회논문집 Vol.2021 No.5
항공기에 사용되는 터보샤프트엔진은 항공기 운용에 필요한 출력, 연료소모량과 같은 성능 요구도와 항공기 장착에 따른 크기 및 중량과 같은 형상 요구도를 충족시켜야 한다. 이를 위해 엔진 기본설계 단계에서 성능 요구도에 맞춘 최적의 설계점을 선정하여 사이클 해석을 수행하고, 엔진 성능 및 구성품 설계에 따른 해석결과와 연계하여 엔진 레이아웃을 구성한다. 본 연구에서는 엔진 기본설계 절차에 따른 1,000 마력급 터보샤프트엔진의 요구도 도출, 사이클 설계 및 레이아웃 설계 과정을 소개한다. Aero turbo-shaft engine should meet the requirement of performance and installation for aircraft, and the requirement contains power, fuel consumption, size and weight of the engine. In preliminary engine design process, design point definition and thermodynamic cycle design should be done, and engine layout also should be designed in consideration of engine performance and component design. In this study, the process of cycle and layout design as the preliminary design of 1000 shp class turbo-shaft engine is introduced.
가스터빈 엔진 터빈 블레이드의 냉각성능 상사시험 평가 연구
정희윤(Heeyoon Chung),이동호(Dong-Ho Rhee),김석민(Seokmin Kim),강영석(Young-Seok Kang),김재호(Jaiho Kim),안철주(Chulju Ahn),임병권(Byeongkwon Lim),이복원(Bokwon Lee) 한국유체기계학회 2022 유체기계 연구개발 발표회 논문집 Vol.2022 No.11
In this study, a similar test was designed to evaluate the cooling performance of the high-pressure turbine blades of a gas turbine engine, and a study was conducted to verify the similarity through analysis and experiments. The main similarity variables representing the cooling performance of the turbine blades were defined, and the similarity test conditions were derived from the engine conditions so that the similarity variables could satisfy the similarity. It was confirmed that the similarity was satisfied by performing a conjugated heat transfer analysis on the same test conditions, and the cooling performance of the turbine blades was experimentally evaluated by conducting a heat transfer experiment using an infrared thermal imaging camera under the same conditions. In conclusion, it was confirmed that the cooling performance of high-temperature components such as high-pressure turbine nozzles and blades operating at high temperatures in a relaxed pressure and temperature environment without simulating a high-pressure and high-temperature environment such as an engine can be evaluated through a similar test.