• Fukushima: removal of nuclear fuel rods from damaged reactor building begins
    6 replies, posted
Workers at the wrecked Fukushima Daiichi nuclear power plant have begun removing fuel rods from a storage pool near one of the three reactors that suffered meltdowns eight years ago. The plant’s operator, Tokyo Electric Power (Tepco) said on Monday that work had begun to remove the first of 566 used and unused fuel assemblies in reactor building No 3. ... Tepco said the operation to remove the fuel rods, which are in uncovered pools, would take two years, adding that transferring them to safer ground would better protect them in the event of another catastrophic earthquake. Workers are remotely operating a crane to raise the fuel from a storage rack in the pool and place it into a protective cask. The whole process occurs underwater to prevent radiation leaks. The utility plans to repeat the procedure in the two other reactors that suffered meltdowns. https://www.theguardian.com/world/2019/apr/15/fukushima-removal-of-nuclear-fuel-rods-from-damaged-reactor-begins
"Robotic probes have photographed and detected traces of melted nuclear fuel in all three reactors that suffered meltdowns, but experts have yet to develop robots capable of locating and removing the fuel while exposed to dangerously high radiation levels." I do not understand this in connection with the headline.
those are the reactors not the fuel pools. these are where they stored used and unused fuel rods that would be rotated in and out of the reactors.The pools were partially drained to cool the reactors during the incident and it caused an explosion in the storage building because they didn't fill them up again.
but experts have yet to develop robots capable of locating and removing the fuel Fukushima: removal of nuclear fuel rods from damaged reactor building begins
These are two different areas with fuel in the same(ish) building. While they can't get a robot into containment where the reactor is because of radiation, they CAN get a robot into the spent fuel pool area OUTSIDE of containment because the rods are not only stored in a manner to prevent fission from occurring, but they are stored in a manner to protect everything from their radiation. While all of the rods for the unit(s) are in the same general building, they are not all inside of containment, where the reactor is.
https://www.extremetech.com/wp-content/uploads/2017/07/Fukushima_MAAP_Report_Nov2011_–_Unit_1.jpg they haven't been able to get robots down below the reactor core where that brownish blob is
is that the super basic way of what happened to the core after the earthquake?
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