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A comment on Small nuclear reactors: tiny NuScale reactor gets safety approval. Parent comment

Re:Small nuclear reactors: tiny NuScale reactor gets safety ... by thekyle on Thursday September 03, 2020 @04:55PM (#24368793)
Wow. How do they design them to withstand a strike from a 747? That seems really difficult.
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Re:Small nuclear reactors: tiny NuScale reactor gets safety ... by throwaway0a5e on Thursday September 03, 2020 @05:02PM (#24368866)
They shot an F4 target drone at a block of "reactor grade" concrete wall back in the 80s and they took measurements and did science on the resulting lack of damage and concluded that a reactor can shrug off one of anything. They didn't change containment buildings to be plane proof. It's just a side effect of the design required to contain a melting down reactor with a sufficient safety factor.
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Re:Small nuclear reactors: tiny NuScale reactor gets safety ... by throwaway0a5e on Thursday September 03, 2020 @09:09PM (#24370774)
video of the test https://www.youtube.com/watch?v=F4CX-9lkRMQ
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Re:Small nuclear reactors: tiny NuScale reactor gets safety ... by selectodude on Thursday September 03, 2020 @04:58PM (#24368813)
A whole lot of concrete, mostly.
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Re:Small nuclear reactors: tiny NuScale reactor gets safety ... by petre on Friday September 04, 2020 @01:44AM (#24372070)
Yes. A NRC requirement for utility scale reactors after 9/11. One wonders why nuclear reactors are so expensive.
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Re:Small nuclear reactors: tiny NuScale reactor gets safety ... by HPsquared on Friday September 04, 2020 @09:54AM (#24374930)
It's a good reason to design reactors to be as small as possible, with a small containment building. Much easier to build.
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