this post was submitted on 15 Dec 2024
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Well there is a difference between marketing and physics
If you want a reaction that you can take energy away from the reaction, the reaction needs to create more energy than it needs to maintain itself. If you fail to take that energy away, the reaction will accelerate and your output will grow even further.
It is basic physics.
The only alternative would be to have an open system that runs on so little fuel that you need to feed it continuously. This has an entirely different level of problems, as now it will be impossible to contain the radiation to the reaction chamber and the containers of the spent fuel. Also with that you would need an entirely different design of how the radioactive material is held in place and how the reactions are controlled. The current way of adjusting how much you block with control rods probably won't work.
It is just impossible to have an exponential system like the nuclear reactions used in a reactor without active control measures. And active measures can fail.
Impossible?
https://www.eria.org/uploads/media/Research-Project-Report/2021-07-Small-Modular-Reactor-/8_Ch.2-Safety-Economics-SMR.pdf
Page 7
Page 4. Describing exactly what i said.
Page 6, which refers to the graphic on page 7. So this only applies if the reactor was at around 30% or less of the design power output.
Page 10.
Yeah great idea. This is Titanic all over again. We don't need a last resort because we have been so smart, that all preliminary features are deemed infaillable. A story as old as humans building complex technology.