Michael_123_ Posted July 2, 2023 Share Posted July 2, 2023 (edited) I know that ramscoop designs are no longer considered feasible. Which of the following would be best, and how might it work in this context? -Vaporizing liquid micro-thruster -Laser ablation plasma Electrothermal resistojets Edited July 2, 2023 by Michael_123_ Link to comment Share on other sites More sharing options...
exchemist Posted July 2, 2023 Share Posted July 2, 2023 7 hours ago, Michael_123_ said: I know that ramscoop designs are no longer considered feasible. Which of the following would be best, and how might it work in this context? -Vaporizing liquid micro-thruster -Laser ablation plasma Electrothermal resistojets What is an “electrothermal resistojet”? Link to comment Share on other sites More sharing options...
swansont Posted July 2, 2023 Share Posted July 2, 2023 Vaporizing liquid microthruster https://www.sciencedirect.com/science/article/abs/pii/S0924424799003891 “Experimental testing produced thruster force magnitudes ranging from 0.15 mN to a maximum force output of 0.46 mN” That’s not very much thrust. AFAIK resistojets are used for station-keeping, not propulsion. Why does it have to be a Non Neumann probe? Is that in any way relevant? 17 minutes ago, exchemist said: What is an “electrothermal resistojet”? https://beyondnerva.com/resistojet-electrothermal-thrusters/ Link to comment Share on other sites More sharing options...
Michael_123_ Posted July 2, 2023 Author Share Posted July 2, 2023 7 minutes ago, swansont said: Why does it have to be a Non Neumann probe? Is that in any way relevant? I've read several papers on Von Neumann probes recently and I'm interested in exploring what propulsion system they might use. Link to comment Share on other sites More sharing options...
swansont Posted July 2, 2023 Share Posted July 2, 2023 1 hour ago, Michael_123_ said: I've read several papers on Von Neumann probes recently and I'm interested in exploring what propulsion system they might use. It’s likely that the propulsion system, like these probes, has not yet been realized. Link to comment Share on other sites More sharing options...
exchemist Posted July 3, 2023 Share Posted July 3, 2023 12 hours ago, swansont said: Vaporizing liquid microthruster https://www.sciencedirect.com/science/article/abs/pii/S0924424799003891 “Experimental testing produced thruster force magnitudes ranging from 0.15 mN to a maximum force output of 0.46 mN” That’s not very much thrust. AFAIK resistojets are used for station-keeping, not propulsion. Why does it have to be a Non Neumann probe? Is that in any way relevant? https://beyondnerva.com/resistojet-electrothermal-thrusters/ Thanks. Link to comment Share on other sites More sharing options...
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