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The China syndrome (loss-of-coolant accident) is a nuclear reactor operations accident characterized by the severe meltdown of the core components of the reactor, which then burn through the containment vessel and the housing building, then (figuratively) through the crust and body of the Earth until reaching the opposite end, presumed to be in ...
The HTR-PM is a high-temperature gas-cooled (HTGR) pebble-bed reactor. While the German AVR and THTR-300, operating from 1969 to 1988, were the first pebble-bed reactors and operated at similar temperatures, the HTR-PM is the first such design using modular construction and the second small modular reactor, following Russia's Akademik Lomonosov floating plant in 2019.
Also as of 2020, China had 41 additional nuclear reactors planned and 168 proposed reactors under consideration. [36]: 197 China's under construction reactors accounted for 27% of worldwide reactors under construction. [36]: 197 As of at least 2023, China's goals for nuclear power expansion are the most ambitious of any country. [36]: 197
A new paper details two tests of a nuclear plant that can’t melt down. The durability is due to natural qualities, like insulated fuel and the density of heated gas.
The Fukushima Daiichi nuclear disaster in 2011 occurred due to a loss-of-coolant accident. The circuits that provided electrical power to the coolant pumps failed causing a loss-of-core-cooling that was critical for the removal of residual decay heat which is produced even after active reactors are shut down and nuclear fission has ceased.
TEPCO finished removing all spent fuel rods from a cooling pool at No. 4 reactor in 2014 and from the No. 3 reactor pool in 2021. It plans to complete removal of the rods from the No. 1 and No. 2 ...
Image source: Getty Images. The fear of a nuclear meltdown, and its aftermath, has left the nuclear power industry with huge hurdles to jump as it looks to build new power plants. The most recent ...
A high-temperature gas-cooled reactor (HTGR) is a type of gas-cooled nuclear reactor which uses uranium fuel and graphite moderation to produce very high reactor core output temperatures. [1] All existing HTGR reactors use helium coolant. The reactor core can be either a "prismatic block" (reminiscent of a conventional reactor core) or a ...