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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN Imprimer: 2150-766X
ISSN En ligne: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.2018024419
pages 57-73

INVESTIGATION OF GEL HYDROCARBON FUELS AND HYDROGEN PEROXIDE AS A HYPERGOLIC BIPROPELLANT

Terrence L. Connell, Jr.
Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
Grant A. Risha
The Pennsylvania State University-Altoona, Altoona, Pennsylvania 16601, USA
Richard A. Yetter
The Pennsylvania State University, University Park, Pennsylvania 16802, USA
Benveniste Natan
Faculty of Aerospace Engineering, Technion − Israel Institute of Technology, Haifa 320003, Israel

RÉSUMÉ

Impinging jet experiments were conducted to characterize ignition delay time for gelled n-dodecane and n-heptane hydrocarbon fuels containing varied sodium borohydride particle loadings, and aqueous solutions of hydrogen peroxide. Experiments indicate average ignition delay times range from approximately 78 down to 26 ms depending on sodium borohydride particle loading and fuel type. Dilution of hydrogen peroxide from 88 to 70 weight percent revealed a significant increase in ignition delay from approximately 21 to 400 ms. Additionally, droplet ignition studies were conducted to investigate alternative additives and oxidizers, in addition to NaBH4 and H2O2, which may impart hypergolic ignition of gel hydrocarbon fuels.


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