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Study on Performance Modeling of a MT30 Gas Turbine Engine for Marine Ship Applications

선박용 MT30 가스터빈 엔진의 성능 모델링에 관한 연구

  • Back, Kyeongmi (Department of Aerospace Engineering, Graduate School of Chungnam National University) ;
  • Ki, Jayoung (ESND) ;
  • Huh, Hwanil (Department of Aerospace Engineering, Chungnam National University)
  • Received : 2020.07.23
  • Accepted : 2020.12.14
  • Published : 2021.02.28

Abstract

In this study, the performance modeling of MT30 gas turbine engine is performed. The design point is determined, and the component performance maps to which the scaling technique is applied are generated using standard maps provided by the commercial program. Off-design point performance analysis is performed with the generated performance model, and this is compared with the performance deck data of the engine. It is confirmed that the data of the performance maps generated by the one-point scaling method had some errors from the performance deck data, and it is determined that correction is necessary to increase the accuracy of the performance model. Therefore, the off-design point analysis is performed by creating the correction performance model in a manner that obtains the scaling factors for each operating point(off-design point) according to the high pressure spool speed.

본 연구에서는 MT30 가스터빈 엔진의 성능 모델링을 수행하였다. 설계점을 결정하고, 상용 프로그램에서 제공하는 스탠다드 맵을 이용한 스케일링 기법으로 구성품 성능 맵을 생성하였다. 생성된 성능 모델로 탈-설계점 성능 해석을 수행하여 그 결과를 엔진 성능 덱 데이터와 비교하였다. 한 점 스케일링 기법으로 생성된 성능 모델이 성능 덱 데이터와 다소 오차가 있음을 확인하고, 성능 모델의 정확성을 높이기 위한 보정이 필요하다고 판단하였다. 따라서 고압 스풀 회전수에 따른 작동점(탈-설계점) 별 스케일링 계수를 구하는 방식으로 보정 성능 모델을 생성하여 탈-설계점 해석을 수행하였다.

Keywords

References

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