Global model of a gridded-ion thruster powered by a radiofrequency inductive coil
| Autor: | J. Arancibia Monreal, Lara Popelier, Jérôme Bredin, Pascal Chabert, Ane Aanesland |
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| Přispěvatelé: | Laboratoire de Physique des Plasmas (LPP), Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École polytechnique (X)-Sorbonne Université (SU)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Plasmas Froids, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École polytechnique (X)-Sorbonne Université (SU)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École polytechnique (X)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École polytechnique (X)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Observatoire de Paris |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
010302 applied physics
Propellant Physics Ion thruster chemistry.chemical_element Plasma Condensed Matter Physics 7. Clean energy 01 natural sciences 010305 fluids & plasmas Volumetric flow rate Xenon chemistry Electromagnetic coil Physics::Plasma Physics [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph] 0103 physical sciences Physics::Space Physics Electron temperature Pulsed inductive thruster Atomic physics |
| Zdroj: | Physics of Plasmas Physics of Plasmas, American Institute of Physics, 2012, 19, pp.195201. ⟨10.1063/1.4737114⟩ Physics of Plasmas, 2012, 19, pp.195201. ⟨10.1063/1.4737114⟩ |
| ISSN: | 1070-664X 1089-7674 |
| DOI: | 10.1063/1.4737114⟩ |
| Popis: | International audience; A global (volume-averaged) model of a gridded-ion thruster is proposed. The neutral propellant (xenon gas) is injected into the thruster chamber at a fixed rate and a plasma is generated by circulating a radiofrequency current in an inductive coil. The ions generated in this plasma are accelerated out of the thruster by a pair of DC biased grids. The neutralization downstream is not treated. Xenon atoms also flow out of the thruster across the grids. The model, based on particle and energy balance equations, solves for four global variables in the thruster chamber: the plasma density, the electron temperature, the neutral gas (atom) density, and the neutral gas temperature. The important quantities to evaluate the thruster efficiency and performances are calculated from these variables and from the voltage across the grids. It is found that the mass utilization efficiency rapidly decreases with the gas flow rate. However, the radiofrequency power transfer efficiency increases significantly with the injected gas flow rate. Therefore, there is a compromise to be found between these two quantities. |
| Databáze: | OpenAIRE |
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