Chugging Instability of H2O2 Monopropellant Thrusters with Reactor Aspect Ratio and Pressures

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Among the three types of instabilities, the low-frequency instability (chugging instability) was experimentally investigated with respect to the chamber pressure and aspect ratio (L/D) of catalytic reactors in a monopropellant thruster. Three H2O2 thrusters were used, and two parameters were found to be the dominant factors that generated a chugging instability of the order of several tens of hertz. A high chamber pressure and low L/D values (low pressure drop across the catalyst bed) were preferable for reducing pressure oscillation inside the reaction chamber. In addition, it was found that these two parameters were not independent but coupled; therefore, the point where chugging instability occurred varied slightly depending on the interaction between these parameters.
Publisher
AMER INST AERONAUT ASTRONAUT
Issue Date
2011
Language
English
Article Type
Article
Keywords

HYDROGEN-PEROXIDE; DECOMPOSITION CATALYSTS; PERFORMANCE; BEDS

Citation

JOURNAL OF PROPULSION AND POWER, v.27, no.2, pp.422 - 427

ISSN
0748-4658
DOI
10.2514/1.48939
URI
http://hdl.handle.net/10203/96667
Appears in Collection
AE-Journal Papers(저널논문)
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