Publication

Micromachined electric propulsion using ionic liquids as fuel

Herbert Shea, Renato Krpoun
2007
Conference Papers

Abstract

MEMS-based electric propulsion (EP) presents several advantages over conventional EP approaches, including scalability, redundancy, fine thrust control, low thrust noise, and reduced operation voltage. Small spacecraft (1- 100 kg) in particular stand to benefit from MEMS-based propulsion. The design, microfabrication and performance of an electrospray thruster with integrated individual extractor electrodes are reported. Micro-machining technologies were employed to achieve large emitter density, simple integration and high structural repeatability.

Official source

https://infoscience.epfl.ch/entities/publication/6d6f0466-07f4-44c1-b76c-71a420f800ca

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Herbert Shea, Renato Krpoun
2007
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/6d6f0466-07f4-44c1-b76c-71a420f800ca

About this result

Related concepts (19)

Thrust reversal

Thrust reversal, also called reverse thrust, is the temporary diversion of an aircraft engine's thrust for it to act against the forward travel of the aircraft, providing deceleration. Thrust reverser systems are featured on many jet aircraft to help slow down just after touch-down, reducing wear on the brakes and enabling shorter landing distances. Such devices affect the aircraft significantly and are considered important for safe operations by airlines. There have been accidents involving thrust reversal systems, including fatal ones.

Turbofan

The turbofan or fanjet is a type of airbreathing jet engine that is widely used in aircraft propulsion. The word "turbofan" is a portmanteau of "turbine" and "fan": the turbo portion refers to a gas turbine engine which achieves mechanical energy from combustion, and the fan, a ducted fan that uses the mechanical energy from the gas turbine to force air rearwards. Thus, whereas all the air taken in by a turbojet passes through the combustion chamber and turbines, in a turbofan some of that air bypasses these components.

Spacecraft

A spacecraft (: spacecraft) is a vehicle that is designed to fly in outer space and operate there. Spacecraft are used for a variety of purposes, including communications, Earth observation, meteorology, navigation, space colonization, planetary exploration, and transportation of humans and cargo. All spacecraft except single-stage-to-orbit vehicles cannot get into space on their own, and require a launch vehicle (carrier rocket).

Related publications (9)

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Propulsion of swimming robots at the surface and underwater is largely dominated by rotary propellers due to high thrust, but at the cost of low efficiency. Due to their inherently high speed turning motion, sharp propeller blades and generated noise, they ...

2020

Influences of porous reservoir Laplace pressure on emissions from passively fed ionic liquid electrospray sources

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Passively fed ionic liquid electrospray sources are capable of efficiently emitting a variety of ion beams with promising applications to spacecraft propulsion and as focused ion beams. Practical devices will require integrated or coupled ionic liquid rese ...

AIP American Institute of Physics2015

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Microfabricated electrospray thrusters could revolutionize the spacecraft industry by providing efficient propulsion capabilities to micro and nano satellites (1–100 kg). We present the modeling, design, fabrication and characterization of a new generation ...

Iop Publishing Ltd2014