Comments by "XSportSeeker" (@XSpImmaLion) on "China’s MELTDOWN-PROOF Nuclear Reactor" video.
-
Power failure not leading to a meltdown is huge by itself already, so kudos to the team in China! But the thing that immediately strikes me when I see the design is containment breach and leak of radioactive materials into the atmosphere.
Just because we're talking about a gas pressure chamber. Then again, current reactors already have that problem, right? If containment is breached, most nuclear reactor designs would end up leaking radioactive gas or vapor into the atmosphere, quite explosively.
With water or without water, you are still dealing with either gas or water vapor inside a pressurized chamber to move the generator, with a radioactive material thrown in the mix, is that right?
Seems that this design is better in that sense because water never comes in direct contact with radioactive material though, not sure how much of a difference this makes.
So the risk of a huge explosion if the vessel fails is still there, but without the self sustaining reaction.
What I'd worry about a design like this is the same as a spicy gatcha. xD Clogging. And what Kyle mentioned - constant refueling. Particularly because it's a pressured chamber. If you'll have to be emptying and refilling content more frequently, considerations need to be made about that, because it means more wear and tear, moving parts, and whatnot.
1