France runs fusion reactor for record 22 minutes

https://sopuli.xyz/post/22855555

France runs fusion reactor for record 22 minutes - Sopuli

Lemmy

Garantee you they weren’t generating a whole lot of power though… And if you can’t do that part then what’s the point?
The first planes only flew for a few seconds.

Yeah, and we measured them to the purpose of flight… Not wingspan, or how soft the wheels were.

So maybe we should measure technology that’s about generating power by…

I’ll let you fill in the blank.

LLNL has achieved positive power output with their experiments. llnl.gov/…/shot-ages-fusion-ignition-breakthrough…

No fusion reactor today is actually going to generate power in the useful sense.

These are more about understanding how Fusion works so that a reactor that is purpose built to generate power can be developed in the future.

Unlike the movies real development is the culmination of MANY small steps.

Today we are holding reactions for 20 minutes. 20 years ago getting a reaction to self sustain in the first place seemed impossible.

A shot for the ages: Fusion ignition breakthrough hailed as ‘one of the most impressive scientific feats of the 21st century’

Call it the shot heard 'round the world. The monumental, first-ever demonstration of fusion ignition by Lawrence Livermore National Laboratory's (LLNL) National Ignition Facility (NIF) marks a potentially world-changing breakthrough for fusion energy and a key initial step in a decades-long quest for limitless clean energy, U.S. government officials and LLNL scientists said Tuesday. At an historic press conference held at U.S. Department of Energy (DOE) headquarters in Washington, D.C., officials with DOE, the White House Office of Science and Technology Policy (OSTP), the National Nuclear

Predicted fusion energy and energy actually harvested and converted to usable electricity are not the same thing. Your article is about “fusion energy” not experimentally verified electrical output.
If you’re not sure how the fire works, it seems kind of stupid to build a turbine for it.

If you’re not sure how the fire works, it seems kind of stupid to build a turbine for it.

Leaving the arguments up to this point aside, your comment on its own doesn’t make much sense. The beauty of of a steam turbine electrical generator is that you don’t have to care how the heat gets generated. You can swap it out with any heat source, from burning fossil fuels, to geothermal, to nuclear, to whatever else and it works just fine as long as the rate of heat output is correctly calibrated for the size of the boiler.

That’s my point: fusion is just another heat source for making steam, and with these experimental reactors, they can’t be sure how much or for how long they will generate heat. Probably not even sure what a good geometry for transferring energy from the reaction mass to the water. You can’t build a turbine for a system that’s only going to run 20 minutes every three years, and you can’t replace that turbine just because the next test will have ten times the output.

I mean, you could, but it would be stupid.

Good point. Uncertainty over the magnitude and longevity of the heat source, and therefore how big to make the turbine and whether it would remain in operation long enough to exceed the payback period of its cost, is definitely a valid reason not to bother attaching a steam generator to a thing.