Low-Toxicity Reactive Hypergolic Fuels for Use with Hydrogen Peroxide

Details Low-Toxicity Reactive Hypergolic Fuels for Use with Hydrogen Peroxide Low-Toxicity Reactive Hypergolic Fuels for Use with Hydrogen Peroxide

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004esasp.557e..32p&link_type=abstract

Proceedings of the 2nd International Conference on Green Propellants for Space Propulsion (ESA SP-557). 7-8 June 2004, Chia Lagu

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The need for low toxicity hypergolic fuels has brought rocket grade hydrogen peroxide (RGHP) to the forefront as the oxidizer of choice for future hypergolic systems. The search for a hypergolic mate for RGHP has been primarily focused on using transition metal salts dissolved in energetic liquids to create hypergolic fuels. These dissolved salts catalytically decompose RGHP on contact, producing heated oxygen and steam which ignite the remainder of the fuel. The use of transition metal salts in these fuels is therefore necessary to induce hypergolicity, but these compounds reduce the specific impulse of these fuels due to the presence of high molecular weight transition metal oxides in the exhaust. Reactive hypergolic fuels can eliminate this problem by using light metal hydrides dissolved in energetic liquids for fuels. These metal hydrides combust directly with RGHP upon contact and ignite the remainder of the fuel. Due to the low atomic weights of the metals used, these metal hydrides can enhance the specific impulse of such fuels instead of degrading the performance as transitional metal salts do. Tests of such reactive fuels are promising and indicate that fuels of this type can be successful hypergolic fuels for use with hydrogen peroxide.

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