Small Business Innovation Research/Small Business Tech Transfer
Non-Toxic HAN Monopropellant Propulsion
Project Description
Non-toxic monopropellants have been developed that provide better performance than toxic hydrazine. Formulations based on hydroxylammonium nitrate (HAN) have superior performance as compared to hydrazine with Isp (261 seconds, 12% greater), higher density and volumetric impulse, lower melting point, and much lower toxicity (No self contained breathing apparatus required). HAN based monopropellants require higher chamber temperatures (2083K vs 883K) to combust. Current hydrazine based combustion chamber technology (Inconel or niobium C103 and silicide coating) and catalyst (Shell 405) are inadequate. However, current state of the art iridium lined rhenium chambers are compatible with monopropellants and new ignition techniques are being developed. The goal of the SBIR project is fabricate and test a flight weight thrust chamber for HAN based monopropellants.
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Anticipated Benefits
Rocket nozzles for satellites and military. Commercial applications are crucibles, heat pipes, propulsion subcomponents, x-ray targets, sputtering targets, turbines, rotors, furnaces, power generation, catalysts, etc.
Mars Ascent Vehicle, lunar landers, reaction control systems, in-space propulsion, attitude control, orbit maintenance, repositioning of satellites/spacecraft, and descent/ascent engines, nuclear power/propulsion, microgravity containment crucibles and cartridges. More »
Mars Ascent Vehicle, lunar landers, reaction control systems, in-space propulsion, attitude control, orbit maintenance, repositioning of satellites/spacecraft, and descent/ascent engines, nuclear power/propulsion, microgravity containment crucibles and cartridges. More »
Project Library
Primary U.S. Work Locations and Key Partners
| Organizations Performing Work | Role | Type | Location |
|---|---|---|---|
| Plasma Processes, LLC | Lead Organization | Industry | Huntsville, Alabama |
Glenn Research Center
(GRC)
|
Supporting Organization | NASA Center | Cleveland, Ohio |
Primary U.S. Work Locations
-
Alabama
-
Ohio
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This is a historic project that was completed before the creation of TechPort on October 1, 2012. Available data has been included. This record may contain less data than currently active projects.