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*** Fukushima *** and other nuclear-----updates and links
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Anonymous Coward |
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Just thinking out loud....
Ft Calhoun's reactor is a Pressurized Water Reactor (PWR). It requires the super-heated coolant (light water) to be pressurized at crazy-high pressures to remain liquid as it flows through the coolant channels within the core of the reactor.
If power is lost to the plant (station blackout), pressure in the closed-coolant system will fall... and the super-heated coolant will immediately boil. and turn to steam. We all know what happens when steam rapidly forms in a sealed environment.
thoughts?
Quoting: Anonymous Coward 1379944The reactor is shut down at calhoun. They must maintain cooling to the reactor and the SFP. Without knowing the layout it's hard to say what the situation is. A loss of coolant event would be worse case scenario. Meltdown? I have a lot more faith in american mitigation than I do Tepco. It's on backup now. Hopefully they can restore full hard line power soon. I also hope they have enough fuel. At fuku they lost the fuel to the tsunami. At Fuku the SFP is at a high level adjacent to the top of the reactor. If the SFP at calhoun is flooded I expect some contamination to occur. Well that's a good point. Anyone know how water is circulated in a shutdown PWR type system to keep a shutdown nuclear core cool? Does it still require the pressurized system or not? Good question...what it all "boils" down to (excuse the pun) is that power must be maintained to keep any and all rods cool.
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