Cno cycle dense plasma focus fusion

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Discussion Overview

The discussion revolves around the potential use of the carbon-nitrogen-oxygen (CNO) cycle in dense plasma focus devices for producing aneutronic fusion power. Participants explore the conditions required for the CNO cycle, its comparison to other fusion processes, and the feasibility of achieving the necessary temperatures and pressures in terrestrial environments.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • Some participants express curiosity about the feasibility of using the CNO cycle in dense plasma focus devices for aneutronic fusion power.
  • One participant notes that the CNO cycle requires high temperatures (above 16 million Kelvin) and high-density plasmas, which may lead to pressures beyond what can be achieved on Earth.
  • Another participant questions the necessity of pursuing the CNO cycle given the progress with Boron-11 and Hydrogen fuels in focus fusion, which may not require such extreme conditions.
  • A participant introduces the idea that superconductivity of plasma could potentially address containment issues in focus fusion, suggesting that superhot plasma might be able to shrink away from tokamak walls.
  • There is mention of a hypothetical nanotechnology tube that could inject hydrogen into the plasma, although the practicality of this idea is not established.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the viability of the CNO cycle for fusion power in dense plasma focus devices. Multiple competing views are presented regarding the feasibility and practicality of different fusion fuel cycles.

Contextual Notes

Participants highlight limitations related to the extreme conditions required for the CNO cycle and the challenges of achieving such conditions in a terrestrial environment. There are also unresolved questions regarding the proposed solutions for plasma containment.

Who May Find This Useful

This discussion may be of interest to researchers and enthusiasts in the fields of nuclear fusion, plasma physics, and advanced energy technologies.

sustainability
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hello, new to site. This is my first post. I just was wondering what any ones thoughts were on using the carbon, nitrogen, oxygen cycle in a dense plasma focus device to produce aneutronic fusion power.
 
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sustainability said:
hello, new to site. This is my first post. I just was wondering what any ones thoughts were on using the carbon, nitrogen, oxygen cycle in a dense plasma focus device to produce aneutronic fusion power.
The CNO process takes place at high temperatures in high density plasmas, the product of which produces high pressures beyond the capability of mechanical contraint.

The CNO cycle requires slightly higher temperatures than the p-p chain; it produces very little energy below about 16 million Kelvin (1.378773 keV). The central temperature of the Sun is just below this critical value, around 15 million Kelvin. Only stars with masses higher than our Sun reach such temperatures in their cores.

. . . .
Ref: http://spiff.rit.edu/classes/phys230/lectures/stellar_energy/stellar_energy.html
 
thanks for the reply.
 
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Why go there (CNO)

The focus fusion are getting pretty close to success with their Boron -11 and Hydrogen fuel. Which doesn't require quite as high temperatures. For now at least why bother with other fuel cycles?
 
Superconductivity of plasma the solution to Focus Fusion?

Superhot plasma has very good conductivity. As it heats up, it might be able to shrink away from a tokamak wall provided it has focus fusion current in it. This might solve containment issues as the plasma ring could then be quite tiny and isolated.

For commercialisation, I imagined a nanotechnology tube (if it were possible) firing hydrogen at a slowish rate into the centre of the plasma dot.
 
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