한국형발사체 75톤급 엔진 지상 연소시험 시 후류시스템 성능평가

Combustion test for 75tonf-class rocket engine of KSLV-II"s first stage engine is undergoing in Rocket Engine Test Facility(RETF). In the engine ground combustion test, exhaust system provides a sufficient amount of cooling water to the core injector, flame guide duct and flame deflector to safely treat the high temperature exhaust gas. In this paper, the performance of the exhaust system is mainly evaluated by changing the outlet temperature of the cooling water supplied to the flame deflector in combustion test.