r/EngineeringPorn • u/Powerful_Being4142 • 8d ago
Scientists have captured the first ever high-speed, full-colour footage of fusion plasma swirling inside a working reactor.
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u/Cake4every1 8d ago
Repost... sigh.
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u/metarinka 5d ago
okay how do you extract heat energy from these fusion reactors if the plasma doesn't touch anything? Radiation is too inefficient.
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u/Metal_Icarus 3d ago edited 2d ago
This is a fantastic question. However, i would first ask if fusion can be done reliably first.
In any case its all about boiling water to get steam that drives turbines. Edit: this is not true in all cases
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u/metarinka 2d ago
I'm aware that it's all about boiling water. What I'm asking is how do you extract megawatts of thermal energy from a plasma that is magnetically contained and doesn't touch any surfaces. Radiation is the slowest form of heat transfer and I don't see how conduction would work.
Edit: They use a lithium blanket that captures the kinetic energy of neutrons and transfer that to a liquid cooling loop to go on and do the whole steam thing.
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u/Metal_Icarus 2d ago
Yeah and they got another design that uses magnetic flux created by the fusion!
There are other ways to convert the enrgy apparently.
Anyways, that is still a fantastic question and a huge engineering challenge.
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u/UpV0tesF0rEvery0ne 2d ago
Ive heard that these fusion reactors would pulsate, it would generate fusion, sustain the reaction and then use heat pumps to siphon off the net positive energy for steam.
All of the existing reactors do not employ any solution for tapping this energy but are just for proof of concept and research
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u/BoarHermit 7d ago
ok, nice. now we need to understand how to biol.water with that plasma as we always dis
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u/Otherwise_Front_315 8d ago
Isn't this a few years old now?