Hi. a simple question on endothermic fusion

  • Context: Graduate 
  • Thread starter Thread starter duration
  • Start date Start date
  • Tags Tags
    Endothermic Fusion Hi
Click For Summary

Discussion Overview

The discussion revolves around the theoretical feasibility of using a continuous endothermic fusion reaction as a high-energy heat sink and its potential to produce unstable isotopes for nuclear fission. The scope includes speculative applications in science fiction, theoretical physics, and the challenges associated with achieving the necessary conditions for fusion.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant questions the feasibility of achieving endothermic fusion at normal temperatures, noting that nuclei require significant energy to overcome Coulomb potential, typically found at millions of degrees.
  • Another participant suggests that if a device could operate in extreme temperature environments, such as a star's core, the heat sink aspect of the idea could be viable, but acknowledges the impracticality of such a device surviving those conditions.
  • A question is raised about whether the temperature requirements for nuclear fusion increase with heavier nuclei or if it is solely the total energy that matters, indicating a lack of clarity in existing literature.
  • There is mention of electromagnetic fields being used to contain and compress plasma for exothermic fusion, with a query about the applicability of this method for an endothermic reaction.
  • One participant references the historical context of the idea, noting that the process of producing Plutonium-239 through neutron fusion with Uranium-238 is not new.
  • The original poster expresses interest in using the concept as a plot device in fiction, seeking a mechanism that could simultaneously reduce heat and produce fuel, while questioning the theoretical possibility of utilizing solar core thermal energy instead of traditional particle collisions.

Areas of Agreement / Disagreement

Participants express differing views on the feasibility of the proposed endothermic fusion concept, with no consensus reached on its practicality or theoretical underpinnings.

Contextual Notes

The discussion highlights limitations in existing knowledge regarding the conditions necessary for fusion, the historical context of the ideas presented, and the speculative nature of the proposed applications in science fiction.

duration
Messages
4
Reaction score
0
Would it be feasible theoretically to use a continuous endothermic fusion reaction as a high-energy heat sink?
Would such a process be capable of producing unstable isotopes for use in nuclear fission?

I ask this as a science fiction writer and I would dearly love input and even direction or further information on the subject. Thank you!
 
Last edited:
Physics news on Phys.org
I don't think it will be possible to do that at normal temperature, you know, nucleus need enough energy to get over Columb potential to get close enough to become another kind of nucleus. Typically the temperature is millions of degrees.
 
So if a device could successfully enter an area where such temperatures occur naturally, such as the core of a star, (which I know seems entirely unreasonable as such a device would be crushed, dispersed, and fused itself) then at least the heat sink portion of that question is a positive?

Do the temperature requirements for nuclear fusion increase as the nuclei become heavier, or just the total energy? I have done a bit of research and most texts are unclear (I'm an author not a physicist!) and I can't really find any pertinent information on the subject.

I have also heard of electromagnetic fields containing and compressing plasma composed of hydrogen for the purpose of exothermic fusion, would this same process theoretically work for an endothermic reaction?
 
Last edited:
Your idea is 65 years old. Plutonium 239 is produced by the fusion of a neutron and Uranium 238.
 
I'm aware of the process used to produce 239 for weaponry, however, I was more interested in using the process as an extremely fast mechanism for simultaneously reducing heat as well as producing fuel.

If this isn't speculatively impossible, I'd like to use it as a plot device, somewhat of a (fictional) bridge between solid fuel propulsion and something like the fabled Alcubierre drive, essentially storing the heat of a star

I know that the current method for synthesizing 239 involves particle accelerators as opposed to using electromagnetic implosion on plasma. I was asking if it's theoretically possible or impossible to use thermal energy in the order of a solar core as opposed to long distance collisions.
 
Last edited:

Similar threads

  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 58 ·
2
Replies
58
Views
16K
  • · Replies 19 ·
Replies
19
Views
3K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 9 ·
Replies
9
Views
3K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 19 ·
Replies
19
Views
6K