A Study on the Derivation of Performance Maps for Micro Gas Turbine Engine Components Based on Experimental Data

Jaehyun Baek; Seungheon Lee; Sangyoon Lee; Hyoung Jin Lee

doi:10.6108/KSPE.2026.30.4.032

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2026 Vol.30, Issue 4 Preview Page Next Page

RESEARCH PAPERS

A Study on the Derivation of Performance Maps for Micro Gas Turbine Engine Components Based on Experimental Data 실험 데이터 기반 마이크로 가스터빈 엔진 구성품의 성능맵 도출 연구

31 August 2026. pp. 32-41

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Abstract

Performance maps of micro gas turbine engines are difficult to access due to manufacturer confidentiality and limited component-level data. Although scaling techniques using public maps and operating data can provide high prediction accuracy, individual engine performance may vary due to manufacturing tolerances and operating conditions. In this study, integrated tests were conducted on a 300-N-class micro gas turbine with varying nozzle exit areas to derive component performance maps. Off-design performance predictions using the derived maps were compared with experimental results, showing errors within 3.5% and thereby validating the proposed performance map derivation method.

Keywords

Micro Gas Turbine Engine

Nozzle Exit Area

Component Performance Map

마이크로 가스터빈 엔진의 성능맵은 제조사 기밀 유지로 인해 접근이 제한되며 완제품인 엔진 특성상 구성품 단위의 성능을 직접 확보하는데 제약이 있다. 성능맵 스케일링을 통해 공개된 성능맵과 운용 데이터를 이용하여 높은 예측 정확도를 보이지만 제작 공차, 운용 환경 등에 따라 개별 엔진의 실제 성능 차이를 보일 수 있다. 이에 본 연구에서는 300 N급 마이크로 가스터빈 엔진을 대상으로 노즐 출구 면적 변화에 따른 엔진의 통합 시험을 수행하고, 이를 기반으로 구성품 성능맵을 도출하는 방안을 제시하였다. 성능맵을 적용한 모델을 통해 수행한 탈설계점 성능해석 결과를 실험값과 비교하였고, 3.5% 이내의 오차를 보여 성능맵 도출 방법의 유효성을 검증하였다.

키워드

마이크로 가스터빈 엔진

노즐 출구 면적

구성품 성능맵

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Information

Publisher :The Korean Society of Propulsion Engineers
Publisher(Ko) :한국추진공학회
Journal Title :Journal of the Korean Society of Propulsion Engineers
Journal Title(Ko) :한국추진공학회지
Volume : 30
No :4
Pages :32-41
Received Date : 2025-12-31
Revised Date : 2026-06-28
Accepted Date : 2026-06-28
DOI :https://doi.org/10.6108/KSPE.2026.30.4.032

Journal of the Korean Society of Propulsion Engineers ISSN:1226-6027(Print) 2288-4548(Online) 한국추진공학회지

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