Arcjet thruster development
| العنوان: | Arcjet thruster development |
|---|---|
| المؤلفون: | Ernst Messerschmid, Bernd Glocker, Martin Riehle, T. Golz, Monika Auweter-Kurtz, Helmut Kurtz, Dieter Zube |
| المصدر: | Journal of Propulsion and Power. 12:1077-1083 |
| بيانات النشر: | American Institute of Aeronautics and Astronautics (AIAA), 1996. |
| سنة النشر: | 1996 |
| مصطلحات موضوعية: | Propellant, Engineering, Hydrogen, business.industry, Mechanical Engineering, Aerospace Engineering, chemistry.chemical_element, Computational fluid dynamics, Regenerative cooling (rocket), Arcjet rocket, Fuel Technology, chemistry, Space and Planetary Science, Thermal, Mass flow rate, Specific impulse, Aerospace engineering, business |
| الوصف: | For several years an intensive program has been in progress at the University of Stuttgart to investigate and develop thermal arcjets for propellants including ammonia, nitrogen-hydrogen mixtures simulating hydrazine, and hydrogen. Since hydrogen yields the highest specific impulse /sp and best efficiencies TJ, special emphasis was placed on this propellant. Arcjet power levels between 0.7-150 kW have been studied, including water- and radiation-cooled laboratory models and flight hardware. Results yielded a maximal attainable 7sp as a function of the design and power level and showed that increasing power increased /sp. Radiation-cooled arcjets show better 17 and 7sp than water-cooled devices, but raise technical problems because of the high temperatures of the thrusters, which require the use of special refractory materials. Proper arcjet optimization was done with a thorough thermal analysis, including the propellant flow. A further improvement of these thrusters was reached by regenerative cooling and by optimizing the constrictor contour. The constrictor flow is modeled by a three-channel model, the results of which are compared with experimental data. A new two-dimensional computational fluid dynamics (CFD) approach for hydrogen arcjet thrusters is presented. In 1996 a 0.7-kW ammonia arcjet is scheduled for a flight on the P3-D AMSAT satellite. |
| تدمد: | 1533-3876 0748-4658 |
| DOI: | 10.2514/3.24146 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::4eeeed9b5f804e3a5c02c3e6c47c28af https://doi.org/10.2514/3.24146 |
| رقم الانضمام: | edsair.doi...........4eeeed9b5f804e3a5c02c3e6c47c28af |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15333876 07484658 |
|---|---|
| DOI: | 10.2514/3.24146 |