| Autor: |
Kevin Lohner, Brian J. Cantwell, Thomas W. Kenny, Yaniv D. Scherson |
| Rok vydání: |
2010 |
| Předmět: |
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| Zdroj: |
46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. |
| DOI: |
10.2514/6.2010-6828 |
| Popis: |
Research is ongoing at Stanford University on the catalytic decomposition of nitrous oxide as an environmentally friendly monopropellant for propulsion and power applications. Two meso-scale planar monopropellant thrusters have been successfully tested: one made of monolithic silicon carbide utilizing a commercially supplied catalyst, and the other made of Hastelloy-X ® utilizing a rhodium based catalyst prepared in-house. The unique planar geometry shows a pathway towards scaling down to micro-scale through MEMS-batch fabrication techniques which enable low-cost, mass produced devices with improved thrust to weight ratios and faster start-up transients. The in-house catalyst showed higher reactivity as compared to the commercially supplied catalyst by initiating the decomposition reaction at a temperature of 200°C corresponding to 50W input power. Bed loadings up to 8.67 kg/m 2 /sec were achieved at a cstar efficiency of 71%. Both devices are compared to a previously reported, scaled-up, cylindrical thruster. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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