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What does FEEP stand for?
What does FEEP mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: FEEP.
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Term | Definition | Rating |
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FEEP | First Education Experience Program | |
FEEP | Field emission electric propulsion | |
FEEP | Family Extension and Education Program | |
FEEP | Farm Energy Efficiency Program | |
FEEP | Farm Energy Efficiency Project | |
FEEP | Farming Energy Efficiently Project | |
FEEP | Free English Evening Program | |
FEEP | Friend of Eclipse Enhancement Program | |
FEEP | Field-Emission Electric Propulsion |
What does FEEP mean?
- feep
- Field-emission electric propulsion (FEEP) is an advanced electrostatic space propulsion concept, a form of ion thruster, that uses a liquid metal as a propellant – usually either caesium, indium, or mercury. A FEEP device consists of an emitter and an accelerator electrode. A potential difference of the order of 10 kV is applied between the two, which generates a strong electric field at the tip of the metal surface. The interplay of electric force and the liquid metal’s surface tension generates surface instabilities, which give rise to Taylor cones on the liquid surface. At sufficiently high values of the applied field, ions are extracted from the cone tip by field evaporation or similar mechanisms, which then are electrically accelerated to high velocities – typically 100 km/s or more. Due to its very low thrust (in the micronewton (μN) to millinewton (mN) range), FEEP thrusters are primarily used for microradian, micronewton attitude control on spacecraft, such as in the ESA/NASA LISA Pathfinder scientific spacecraft. The FEEP thruster was also slated for installation on Gravity Field and Steady-State Ocean Circulation Explorer spacecraft, but the Gridded ion thruster was used instead. The first FEEP thruster operated in space was the IFM Nano Thruster, successfully commissioned in Low Earth Orbit in 2018.
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"FEEP." Abbreviations.com. STANDS4 LLC, 2024. Web. 21 May 2024. <https://www.abbreviations.com/FEEP>.
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