Sodium iodide: A trigger for hypergolic ignition of non-toxic fuels with hydrogen peroxide

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In recent years, rocket scientists have devoted attention to the development of environmentally friendly hypergolic propellants for propulsion of space vehicles. In this study, sodium iodide a trigger compound was investigated to improve the hypergolic performance of green fuels viz., ionic liquid, 1-ethyl-3-methyl imidazolium cyanoborohydride ([EMIM][BH3CN]), and zwitterion, 1-methyl imidazolium borane (MIMBH3) with 95% H2O2 green oxidizer. A 9 wt.% of sodium iodide in [EMIM][BH3CN] exhibited an ignition delay time of ~75 ms. However, 9 wt.% of sodium iodide in the blend of [EMIM][BH3CN]:furfuryl alcohol (1:1 wt./wt.%) revealed an ignition delay time of 56 ms. These ignition delay times were a hundred times lower than the neat fuel of [EMIM][BH3CN]. Interestingly, the MIMBH3 exhibited a shorter ignition delay time was about 25 ms, with the addition of < 3 wt.% of sodium iodide. Moreover, furfuryl alcohol blended with ionic liquid also improved the performance of hypergolic bipropellants.
Publisher
American Institute of Aeronautics and Astronautics Inc, AIAA
Issue Date
2020-08-24
Language
English
Citation

AIAA Propulsion and Energy 2020 Forum, pp.1 - 5

DOI
10.2514/6.2020-3824
URI
http://hdl.handle.net/10203/276983
Appears in Collection
AE-Conference Papers(학술회의논문)
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