ABSTRACT Liquid rocket engines of KSLV-II employ a turbopump feed system for propellants. A turbopump real-propellant test facility based on liquid oxygen and kerose ne has been constructed for the experimental verification of the turbopump performance using the real media of propellants(i.e., LOX/Kerosene). The verification tests of sub-systems were perfo rmed such as LOX/kerosene feed system and alcohol burner system. Finally, the performance of t he whole system was executed and verified through a sets of validation tests with the developmen t model of the KSLV-II turbopumps. It has been confirmed that the test facility satisfies the operating conditions and time of the turbopump at the design and off-design performance test using real-propellant.초 록 한국형발사체를 위한 액체로켓엔진은 터보펌프 추진제 공급방식의 시스템으로 이루어진다. 이 터보펌프의 실추진제를 사용하는 실험적 성능검증을 위해 액체산소와 케로신을 토대로 한 터보펌프 실매질 시험설비가 구축되어 왔다. 산화제/케로신 공급 시스템과 알코올버너 시스템과 같은 주요 서브시스템에 대한 검증시험이 이루어 졌고, 터보펌프 개발모델을 이용한 인증시험을 통해 전체 시험설비에 대한 성능검증이 이루어 졌다. 설계점 및 탈설계점을 포함한 터보펌프의 모든 운용조건과 운용시간에 대한 실매질 성능검증시험을 본 시험설비를 이용하여 수행할 수 있는 것으로 확인되었다.Key Words:Turbopump(터보펌프), Real-propellant Test Facility(실매질 시험설비), Liquid Oxygen(액체산소), Kerosene(케로신), Alcohol Burner(알코올버너)Received 22 December 2014 / Revised 12 June 2015 / Accepted 19 June 2015
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