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http://dx.doi.org/10.6108/KSPE.2022.26.6.034

Performance Characteristics of GCH4-LOx Small Rocket Engine According to the Equivalence Ratio Variation at a Constant Pressure of Combustion Chamber  

Yun Hyeong Kang (Department of Mechanical Engineering, Graduate School, Pukyong National University)
Hyun Jong Ahn (Department of Mechanical Engineering, Graduate School, Pukyong National University)
Chang Han Bae (Department of Mechanical Engineering, Graduate School, Pukyong National University)
Jeong Soo Kim (School of Mechanical Engineering, Pukyong National University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.26, no.6, 2022 , pp. 34-42 More about this Journal
Abstract
A correlation between propellant supply condition and chamber pressure in GCH4-LOx small rocket engine was explored and hot-firing tests were conducted to analyze the engine performance characteristics according to the equivalence ratio variation at a constant chamber pressure. Correlation studies have shown that chamber pressure is linearly proportional to oxidizer supply pressure. As a result of the test, the thrust, specific impulse and characteristic velocity that are the main performance parameters of a rocket engine, were found to be enhanced as the equivalence ratio starting from a fuel-lean condition approached the stoichiometric ratio, but the efficiencies of characteristic velocity and specific impulse were on the contrary, in their dependency on the equivalence ratio.
Keywords
Small Rocket Engine; Methane; Constant Chamber Pressure; Equivalence Ratio;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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