NASA SBIRSTTR Technologies Low Power Low Cost Igniter
NASA SBIR/STTR Technologies Low Power, Low Cost Igniter for a Nonhypergolic Mars Ascent Vehicle PI: Dr. Joseph D. Sims, Analytical Services, Inc. , Huntsville, AL Proposal No. : S 3. 08 -9719 Identification and Significance of Innovation • Because Ionic Liquid Monopropellants are Conductive, Molten Salts, Resistive Heating Ignition Possible • Eliminates Need for Catalyst Bed, Which Improves Thruster Response • Ignition Rapid, Reliable, Repeatable • Exothermic Decomposition Reaction Sustains Combustion w/o Further Ignition Source Expected TRL Range at the end of Contract (1 -9): 6 Technical Objectives and Work Plan • Technical Objectives: • Determine Feasibility of Igniting Flowing ADN-Based Monopropellant LMP-106 S (Ammonium Dinitramide/Water/Methanol Mixture) • Insure Exothermic Igniter Stays Lit After Initial Voltage Pulse • Work Plan: • Fabricate Resistance Ignition Thruster • Fabricate Breadboard Electrical Igniter Circuit • Demonstrate Igniter Performance in Testing ADN-Based LMP-103 Monopropellant Flowing From Our Phase I Igniter Device. Igniter Failed to Ignite in Flowing and Quiescent Tests. Phase I Results • Electrically Igniting LMP-103 Monopropellant was Shown to be Infeasible • ASI Conducted a Number of Quiescent Ignition Tests to Electrically Ignite the LMP-103 monopropellant: • Spark Ignition (~75, 000 V, Low Amperage) • High Voltage (3000 V), High Current Capacitor Discharge • In All Cases LMP-103 Failed to Ignited Under the Applied Electrical Impulses. Contact: Dr. Joe Sims (256)562 -2191 simsj@asi-hsv. com
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