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Showing 1 to 20 of 30 for “"Electrospray propulsion"”.
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Solid-State Flow Control for Ion Electrospray Propulsion
Electrospray propulsion offers high-efficiency, low-mass propulsive capabilities, based on ion extraction from ionic liquid propellants, to small spacecraft that exceed the capabilities of conventional chemical propulsion. Two shortcomings of such propulsion systems is their lack of lightweight …
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Considerations for a multi-modal electrospray propulsion system
… of these spacecraft is the lack of suitable propulsion, which has severely limited the scope of prior CubeSat missions. While these spacecraft have gained traction by virtue of their economical size, the same quality has imposed unique propulsion demands which have continued to elude …
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Experimental investigation of ionic liquid mixtures for electrospray propulsion
… earth orbit; many of these are launched without propulsion systems. Multi-mode propulsion systems, capable of operating in either chemical or electric mode, have been proposed as attractive candidates for use in small satellites. Such systems are mass and volume optimal and flexible in terms of …
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Molecular dynamics modeling of ionic liquids in electrospray propulsion
Micro-propulsion has been studied for many years due to its applications in small-to-medium sized spacecraft for precise satellite attitude control. Electrospray thrusters are promising thrusters built upon the state of the art in micro-technology and with flexible performance in terms of their …
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Porous material and process development for electrospray propulsion applications
Ion electrospray propulsion devices rely on the transportation of ionic liquid propellant to emission regions where ions are extracted at high velocities. One such method involves the use of porous substrates to passively transport propellant towards conically shaped features of the same porous …
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Testing new potential fuels for ion electrospray propulsion systems
Electrospray thrusters are a class of electric propulsion that extract and accelerate ions from the surface of an electrically conductive liquid surface. This liquid surface is that of an ionic liquid, a room temperature molten salt, applied to a porous substrate. The substrate is etched via laser …
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Fundamental experiments on electrospray propulsion: Propellants, plumes, and material interactions
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-05-01
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Deep-Space Exploration Enabled by CubeSats with Staged Electrospray Propulsion
… as companions to enhance large missions or using propulsion to reach science orbits near the destination of the primary mission (e.g. to Mars or around the Moon). More CubeSat companions are planned on future high-profile missions and the concept is likely to continue to gain popularity, but is …
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Characterization on a magnetically levitated testbed for electrospray propulsion systems
… community is increasing at a very fast rate. Propulsion systems for these class of spacecraft are very limited. One promising technology is the ion Electrospray Propulsion System (iEPS) developed at the Space Propulsion Laboratory at MIT. Electrosprays accelerate ions present in the interface …
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Application of ion electrospray propulsion to lunar and interplanetary missions
High specific impulse electric propulsion systems enable ambitious lunar and interplanetary missions that return a wealth of scientific data. Many of these technologies are difficult to scale down, meaning the spacecraft are relatively massive and expensive. The Space Propulsion Lab (SPL) at the …
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Material and fabrication developments in the ion-electrospray propulsion system
… techniques were developed in support of the ion electrospray propulsion system (iEPS) developed by MIT's Space Propulsion Lab. MEMS fabrication techniques are reworked to increase yield reliability of the thruster frames. The focus of this work is on propellant management, increasing thrust …
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Electrochemistry of room temperature ionic Liquids with applications to electrospray propulsion
… technological advancements in space-based micropropulsion, focused ion beam, energy storage, and other research and industrial applications. As a family of concentrated electrolytes, RTIL electrochemical properties deviate from classical theories whose mean-field approach glossed over effects …
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Fabrication and characterization of sintered porous glass emitters for electrospray propulsion
Ionic electrospray thrusters are promising candidates for CubeSat propulsion systems in space, due to their low power requirement and small form factor. Current technology has demonstrated thrust levels of 10 - 40[mu]N, enabling station keeping and attitude adjustment maneuvers. Densification of …
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Design of a Bimodal Chemical-Electrospray Propulsion System using Ionic Liquid Monopropellants
Two primary propulsion modes currently exist for spacecraft: chemical (e.g. monopropellant, cold gas, solid propellant) and electric (e.g. Hall thruster, ion engine, electrospray). Chemical propulsion typically offers high thrust and low specific impulse, while electric propulsion provides the …
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Development and research of porous alumina xerogel membranes for electrospray propulsion applications
Electrospray engines have been under development at the MIT Space Propulsion Laboratory (SPL) for many years. The operating principle of electrospray engines is a voltage drives a charged liquid fuel through an extractor membrane, the momentum of the exiting fuel is what propels the engine. The …
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Design and analysis of a stage-based electrospray propulsion system for CubeSats
… orbit due in part to the lack of high [delta]V propulsion systems that are compatible with the small form factor. The ion Electrospray Propulsion System developed at the Space Propulsion Laboratory at the Massachusetts Institute of Technology is a promising technology foundation for a compact, …
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Characterization of fluorohydrogenated ionic liquids for use in the ion electrospray propulsion system
… ionic liquids as propellants for the ion Electrospray Propulsion System developed at MIT, 1-ethyl-3-methylimidazolium fluorohydrogenate and trimethylsulfonium fluorohydrogenate. It was found that these ionic liquids undergo a crystallization-like transformation when exposed to vacuum for …
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Design and manufacturing of an ion electrospray propulsion system package and passively-fed propellant supply
… of high-specific-impulse, scalable, benign propulsion options. Available technologies are too resource inefficient for small satellites, too inflexible, or pose a threat to primary launch payloads. An emergent technology, electrospray propulsion, is inherently scalable, benign, applicable to …
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Power conversion and scaling for vanishingly small satellites with electric propulsion
The development of ion electrospray propulsion systems (iEPS) as integrated microelectromechanical systems (i.e. MEMS) effectively miniaturizes propulsion for nanosatellites. Current iEPS thrusters consist of arrays of ion emitters, with a thruster for CubeSat application consisting of hundreds of …
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Exploration of Planetary Bodies with Electrospray Thrusters
… for operating these small spacecraft. Electrospray propulsion is a promising technology for high-Delta-v propulsion of small spacecraft due to its mechanical simplicity and scalability. However, methodologies for characterizing the propulsion system thrust on orbit have so far been …
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