Plausability of a Plasma Jet Electric Thruster

In summary, a group of 3 scientists are seeking funding for a plasma jet electric thruster for space travel. This technology is currently not very efficient, but has potential for increased thrust and efficiency in the future.
  • #1
AnTiFreeze3
246
9
I frequent this website occasionally, but most of the projects on it aren't nearly as outreaching as this one appears to be.

http://www.kickstarter.com/projects...ctric-thrusters-for- spacecraft ?ref=category

It's basically a group of 3 scientists trying to raise upwards of $70,000 to fund a plasma jet electric thruster, which they hope will be a far more efficient process for space travel. This is all way over my head, so I was wondering if anyone with the proper credentials could clarify whether or not this is feasible.
 
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  • #3
1kW input power, 20km/s exhaust velocity correspond to a maximal thrust of 0.1N - with the 10% efficiency number, this is reduced to 0.01N. Ion thrusters have similar values, but this table indicates a better efficiency. Maybe they can decrease the size, but in terms of efficiency they won't get much. More maximal thrust would be interesting, too.
 

Related to Plausability of a Plasma Jet Electric Thruster

1. What is a Plasma Jet Electric Thruster?

A Plasma Jet Electric Thruster is a type of electric propulsion system that uses plasma as the propellant to generate thrust. It works by ionizing a gas, typically xenon, into a plasma state and then accelerating the ions using an electric field to produce thrust.

2. How does a Plasma Jet Electric Thruster work?

A Plasma Jet Electric Thruster works by converting electrical energy into kinetic energy in the form of a high-speed plasma jet. The thruster uses strong electric fields to ionize the gas and then accelerates the ions using electromagnetic fields, producing thrust in the opposite direction.

3. What are the advantages of using a Plasma Jet Electric Thruster?

One of the main advantages of a Plasma Jet Electric Thruster is its high specific impulse, which means it can produce more thrust using less propellant compared to other types of thrusters. It is also highly efficient, has a longer lifespan, and allows for precise control of the thrust.

4. Are there any limitations or challenges associated with Plasma Jet Electric Thrusters?

One limitation of Plasma Jet Electric Thrusters is their relatively low thrust compared to traditional chemical rockets. They also require a significant amount of power to operate, which can be a challenge for long-duration missions. Additionally, the plasma generated by the thruster can damage the spacecraft if not properly controlled.

5. What applications can Plasma Jet Electric Thrusters be used for?

Plasma Jet Electric Thrusters are commonly used for deep space missions, such as satellite propulsion, interplanetary travel, and deep space exploration. They are also being considered for use in Earth-orbiting satellites and spacecraft, as well as potential future human missions to Mars.

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