Neutrino power extraction feasable?

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Discussion Overview

The discussion revolves around the feasibility of extracting energy from neutrinos, exploring the potential for a device that could harness this energy as a power source. Participants examine the theoretical and practical challenges associated with neutrino energy extraction, including energy density and interaction rates.

Discussion Character

  • Exploratory, Debate/contested, Conceptual clarification

Main Points Raised

  • One participant proposes the idea of creating a device to interact with neutrinos and extract their energy, questioning the feasibility of such a power source.
  • Another participant notes the difficulty in estimating the energy per square meter from neutrinos, emphasizing their very low mass and kinetic energy, while acknowledging the high rate of neutrinos passing through the Earth.
  • A different viewpoint suggests that while solar neutrinos have a comparable energy flux to solar photons, the overall energy density is too low for practical applications, implying that neutrinos would be even less viable.
  • One participant expresses disappointment, believing that the sheer number of neutrinos could accumulate to a usable energy amount, despite their low individual energy.
  • Another participant mentions alternative methods for energy gain from existing energy production and consumption devices, suggesting a shift in focus from neutrinos.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the feasibility of neutrino energy extraction, with multiple competing views regarding the practicality and potential of such an approach.

Contextual Notes

The discussion highlights limitations in estimating neutrino energy and the challenges of their interaction with matter, which remain unresolved.

Blenton
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I was wondering if we could create a device that could interact with neutrinos and extract their energy to some considerable percentage, would this allow for an almost undirectional and free power source? I'm unable to do a rough estimate of the power per square meter as it seems tying to find out how much energy a single neutrino contains is difficult.
 
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Hi there,

Blenton said:
I'm unable to do a rough estimate of the power per square meter as it seems tying to find out how much energy a single neutrino contains is difficult.

Not much. A neutrino, eventhough traveling very fast, has very very little mass, therefore kinetic energy. But I agree that the energy would come from the rate of neutrino passing throug the Earth, which is absolutely amazing.

Your idea of extracting the kinetic energy from the particles is not to bad. Before doing so, why don't we try to study these particles, and find a way to stop them. Which at the moment, we know just one way to stop them, which is to put a lot of "heavy" nuclei in a region and wait for a direct hit with a nucleus. You have to know that neutrino interact very little with its environment. Therefore, many problems to solve before even trying to extract its energy.

Cheers
 
Solar neutrinos would have a total energy flux comparable to the solar photon flux. That's a much easier problem to solve, and even so, solar is a fraction of our total energy use. Essentially, the energy density is lower than is practical for many applications. Neutrinos would only be worse.
 
Thats a shame, I thought since there were a huge number of neutrinos passing through us even if they had a fraction of an electronvolt each it could add up to a usable amount.
 
There are probably other ways of energy gaining (economy, efficiency, etc.) - from existing energy production/consumption devices.
 

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