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Demonstration of electric micropropulsion multimodality

Electric propulsion has become popular nowadays owing to the trend of miniaturizing the size and mass of satellites. However, the main drawback of the most popular approach—Hall thrusters—is that their efficiency and thrust-to-power ratio (TPR) markedly deteriorate when its size and power level are...

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Autores principales: Zolotukhin, Denis B., Bandaru, Siva Ram Prasad, Daniels, Keir P., Beilis, Isak I., Keidar, Michael
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9451150/
https://www.ncbi.nlm.nih.gov/pubmed/36070382
http://dx.doi.org/10.1126/sciadv.adc9850
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author Zolotukhin, Denis B.
Bandaru, Siva Ram Prasad
Daniels, Keir P.
Beilis, Isak I.
Keidar, Michael
author_facet Zolotukhin, Denis B.
Bandaru, Siva Ram Prasad
Daniels, Keir P.
Beilis, Isak I.
Keidar, Michael
author_sort Zolotukhin, Denis B.
collection PubMed
description Electric propulsion has become popular nowadays owing to the trend of miniaturizing the size and mass of satellites. However, the main drawback of the most popular approach—Hall thrusters—is that their efficiency and thrust-to-power ratio (TPR) markedly deteriorate when its size and power level are reduced. Here, we demonstrate an alternative approach—a minute low-power (<50 W), lightweight (~100 g), two-stage propulsion system. The system is based on a micro-cathode vacuum arc thruster with magnetoplasmadynamic second stage (μCAT-MPD), which achieves the following parameters: a thrust of up to 1.7 mN at a TPR of 37 μN/W and an efficiency of ~50%. A μCAT-MPD system, in addition to “traditional” inverse, displays the anomalous direct (growing) “TPR versus specific impulse I(sp)” trend at high I(sp) values and allows multimodality at high efficiency.
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spelling pubmed-94511502022-09-29 Demonstration of electric micropropulsion multimodality Zolotukhin, Denis B. Bandaru, Siva Ram Prasad Daniels, Keir P. Beilis, Isak I. Keidar, Michael Sci Adv Physical and Materials Sciences Electric propulsion has become popular nowadays owing to the trend of miniaturizing the size and mass of satellites. However, the main drawback of the most popular approach—Hall thrusters—is that their efficiency and thrust-to-power ratio (TPR) markedly deteriorate when its size and power level are reduced. Here, we demonstrate an alternative approach—a minute low-power (<50 W), lightweight (~100 g), two-stage propulsion system. The system is based on a micro-cathode vacuum arc thruster with magnetoplasmadynamic second stage (μCAT-MPD), which achieves the following parameters: a thrust of up to 1.7 mN at a TPR of 37 μN/W and an efficiency of ~50%. A μCAT-MPD system, in addition to “traditional” inverse, displays the anomalous direct (growing) “TPR versus specific impulse I(sp)” trend at high I(sp) values and allows multimodality at high efficiency. American Association for the Advancement of Science 2022-09-07 /pmc/articles/PMC9451150/ /pubmed/36070382 http://dx.doi.org/10.1126/sciadv.adc9850 Text en Copyright © 2022 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Physical and Materials Sciences
Zolotukhin, Denis B.
Bandaru, Siva Ram Prasad
Daniels, Keir P.
Beilis, Isak I.
Keidar, Michael
Demonstration of electric micropropulsion multimodality
title Demonstration of electric micropropulsion multimodality
title_full Demonstration of electric micropropulsion multimodality
title_fullStr Demonstration of electric micropropulsion multimodality
title_full_unstemmed Demonstration of electric micropropulsion multimodality
title_short Demonstration of electric micropropulsion multimodality
title_sort demonstration of electric micropropulsion multimodality
topic Physical and Materials Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9451150/
https://www.ncbi.nlm.nih.gov/pubmed/36070382
http://dx.doi.org/10.1126/sciadv.adc9850
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