Facility & Company Information > Davis-Besse
Davis-Besse
tardvark:
Is ther any particular reason that the head is being replaced? I thought they had a new one?
vikingfan:
while I don't know the specifics, the current rx head was from miidland plant. and now they will replace this one with a brand spanking new one.
Fermi2:
Because it's starting to show signs of cracking. A huge contributing factor is for some reason their Thot is higher than other B+W Plants. Maybe because it's a raised loop plant?
Mike
tardvark:
Thanks for the info, folks. The T hot thing is a bit curious. I'm not a smart HP but it seems like if you had natural circ, the riased loop thing might be an issue...but with pumps?? Oh well. I might just have to go take a looky. Nothing like broiled walleye for Christmas dinner!
Fermi2:
It's an issue because Thot circulates to the Upper Head. Higher temperature means more stress on the head. BTW Upper Loop plants are supposed to enhance Natural Circ and during Nat Circ your Thot doesn't rise. In fact your Nat Circ Delta T post trip should be the same as your 100% delta t, so Thot stays about the same.
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