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Revamped German stellarator should run longer, hotter and compete with tokamaks

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Re: Revamped German stellarator should run longer, hotter and compete with tokamaks

#5
post #2

This has to be the most opaque title I’ve ever seen on Hacker News. For anyone wondering, this is about a potential development in cold fusion reactors.

Standard (hot) fusion, not cold fusion.

Having read a few articles previous on fusion, I'm familiar with the words tokamak and stellarator, so it was obvious to me that it was about fusion from the title.

I wonder how many other titles you would consider opaque if you didn't happen to know the terms?

Re: Revamped German stellarator should run longer, hotter and compete with tokamaks

#7
post #2

This has to be the most opaque title I’ve ever seen on Hacker News. For anyone wondering, this is about a potential development in cold fusion reactors.

Hot fusion, not cold fusion. It runs at a hundred million degrees C.

Hot fusion is a well-known process that powers the sun. Cold fusion is a supposed low-temperature process that most scientists doubt is real, and if it is real we don't understand the physics of it.

Re: Revamped German stellarator should run longer, hotter and compete with tokamaks

#8
post #6

Forgive my ignorance; what with all the effort made to isolate the exceedingly hot plasma from connecting with any surface, what are the plans to extract the heat in order to generate power?

Since the plasma runs hotter than the Sun, and the magnetic field cannot confine photons, my guess is that the hull will become insanely hot, and you could use it to drive a steam engine.

Re: Revamped German stellarator should run longer, hotter and compete with tokamaks

#9
https://www.energy.gov/science/doe-explainsstellarators A stellarator is a machine that uses magnetic fields to confine plasma in the shape of a donut, called a torus.

Over tokamaks, the other main technology that scientists are exploring for fusion power, stellarators require less injected power to sustain the plasma, have greater design flexibility, and allow for simplification of some aspects of plasma control.

However, these benefits come at the cost of increased complexity, especially for the magnetic field coils.

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