Is nuclear fusion the energy source of the future?
I've been hearing more and more about nuclear fusion lately. It's supposedly the best energy source. However, it's still very inefficient at the moment. Will that change in the future, and what do you think about nuclear fusion?
Thanks in advance.
Nuclear fusion has great potential, but is not without problems. A common misunderstanding is, for example, that nuclear fusion would not cause radioactive waste. However, only a very much less and less active material than in the nuclear fission.
Also, nuclear fusion has been researched for a long time, and since Jarhtenten, one always stands, at least the popular scientific literature, just before the breakthrough and it is still a matter of time until the breakthrough comes. In fact, progress has been made, but there is still a lack of economic applicability.
How will the temperature be derived from the 340 million degrees and very thin plasma thread?
Is a steam turbine downstream to drive a generator?
How many megawatts are possible today?
Thank you for your assessment.
No, as it has shown how important decentralised energy sources are.
Answer of a head of the research reactor ITER under construction:
An industrial merger always 20 years in the future.
…. well, inefficient is already a bit exaggerated, there has not yet been a positive energy balance in the whole plant…
It would be an energy source that would be almost inexhaustible, the sun has out as it goes, we’ll probably need more….
it is not foreseeable.
mash
PS: https://mfe.webhop.me/?s=kernfusion
there’s a lot to do…
Almost inexhaustible – what do you mean?
…. Hydrogen is the most common element in the whole universe!
Thanks for the addition!
Yes, ordinary hydrogen, the isotope 1H (protium), that is the fuel supply for the fixed stars. They’ve been supplied for billions of years. It is therefore understandable in terms of advertising psychology that even on the subject of artificial fusion, reference is always made to the words “hydrogen” and “sonne” and thus suggests that it is an energy resource for cosmic periods. But will any fusion reactor actually work with the fuel of the sun?
No. In ITER, DEMO, and all reactor projects known to me, 2H and 3H should instead serve as fuels (deuterium and tritium, heavy and heavy hydrogen). Their fusion is sufficient for a technical process. The process with 1H running in the sun is not.
https://de.wikipedia.org/wiki/Kernfusion#Posible_uses_and_reactions
As far as fuel supplies are concerned, inexhaustibility can not even be almost discussed. Although deuterium occurs in large quantities in sea water, the tritium is extremely rare. It does not happen in nature on earth as well as it does not have to be artificially produced to use it for nuclear fusion.
Tritium is currently produced in certain types of nuclear fission reactors. For nuclear fusion, one wants to brood the required delay in tritium by Lithium radiated with neutrons. Since the neutrons released during the merger are not sufficient, it is still necessary to beryllium and Lead as neutron multiplier. This means that the stocks of lithium, lead and beryllium, which, if it does, determine the time horizon of artificial nuclear fusion, are determined.