Questions tagged [electric-propulsion]

The tag has no usage guidance.

9 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
6
votes
0answers
136 views

Relationship between part dimensions and performance of ion electrospray thruster

I got the relationship between power, thrust and specific impulse for an ion electrospray thruster as follows: $$P/T= 1/2 \times g_o \times I_{\mathrm{sp}}$$ Where: $P$ = power required (in Watts), $...
1
vote
0answers
56 views

GMAT: LEO to GEO with Electrical Thruster simulation?

I would like to get a simulation from LEO to GEO with an electrical Kick-Stage. GMAT seems to be able to do it. Is there any Script/Scenario already written? The aim is to perform a parametric study ...
1
vote
0answers
41 views

Are there now established classes of solar-electric powered spacecraft?

The NASA.gov press release NASA Awards Contract to Launch Initial Elements for Lunar Outpost says: NASA has selected Space Exploration Technologies (SpaceX) of Hawthorne, California, to provide ...
1
vote
0answers
76 views

Technological challenges to sending a high altitude balloon to space and orbit from 50 km?

Below At what altitude would I have to go in a lighter than air balloon to be above all wind and just have the earth rotate underneath me? there is a comment: If you want to be above all winds, you ...
1
vote
0answers
30 views

Do colloid thrusters generate thrust by using only droplets or pure ions as well? If they only use droplets, how are they the same as electrospray?

In all of the research literature I have read so far, I've seen colloid thrusters explained as devices that gain thrust by releasing only charged droplets from ionic liquids as the exhaust mass. ...
1
vote
0answers
61 views

Generating an electric field for a colloid thruster

I was wondering how the electric field in an electrospray thruster works to ionize particles and propel a micro spacecraft. I was thinking of possible circuits but I wasn't sure what it could look ...
0
votes
1answer
46 views

Simple Ionic Drive Problem

I am having trouble with my calculated values for part B of the problem. In part A I used the formula F=qE, where F is the force, q is the charge = 1.6 * 10^-19 coulombs and E is the electric field = ...
0
votes
0answers
142 views

How much krypton do Starlink satellites carry when they are first deployed?

Starlink satellites use krypton as propellant. This answer roughly estimates 2.3 kg of Krypton based on a total delta-V of 190 m/s and an exhaust velocity of 20,000 m/s. But how close is that to ...
0
votes
1answer
85 views

How much additional thrust could the electron gun produce for electric sail propulsion?

Suppose there is an electric sail in LEO, do the electrons coming out of the gun produce an additional thrust? to produce a net thrust the electrons should NOT return to the satellite (which is at a ...