Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Test & Evaluation for the Configuration Optimization of Thrust Chamber in 70 N-class N2H4 Thruster (Part I: Pulse-mode Performance According to the Chamber Diameter Variation)

70 N급 하이드라진 추력기의 추력실 최적설계와 시험평가 (Part I: 추력실 직경변화에 따른 펄스모드 성능특성)

  • Kim, Jong Hyun (Department of Mechanical Engineering, Graduate School, Pukyong National University) ;
  • Jung, Hun (Department of Mechanical Engineering, Graduate School, Pukyong National University) ;
  • Kim, Jeong Soo (Department of Mechanical Engineering, Pukyong National University)
  • Received : 2013.10.02
  • Accepted : 2014.01.13
  • Published : 2014.02.01
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Abstract

Performance evaluation was carried out for the 70 N-class hydrazine thruster whose design performance had been already verified. The pulse-mode firing test was conducted for the development model thrusters with various thrust chamber diameters. Evaluation was made by the performance parameters such as specific impulse, impulse bit, and characteristic velocity, etc: specific impulse and characteristic velocity were deteriorated as the thrust chamber diameter deviates from a standard model. Consequently, it is revealed that the performance characteristics of standard model is most superior among the test models.

설계성능이 검증된 70 N급 하이드라진 추력기에 대한 성능평가 시험이 수행되었다. 각각의 개발모델 추력기는 추력실 직경 변화에 따라 펄스모드로 연소시험이 수행되었으며, 비추력, 임펄스 비트 및 특성속도 등의 성능변수로 평가되었다. 추력실 직경의 증가와 감소에 따라 비추력과 특성속도가 감소하였으며, 성능평가 결과 표준모델의 성능특성이 가장 우수한 것으로 확인되었다.

Keywords

References

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