Reference, Questions and Help > Definitions
seal table ?
Marlin:
Kernworker, I like your signature line. Its not any different here. :)
(Yes Mike I know I'm off topic, but I mean well :))
PWHoppe:
--- Quote from: Kernwerker on Sep 12, 2006, 09:17 ---Thanks alot Hoppe even though I am not Marco, he is the other German guy working at the nuclear powerstation in Neckarwestheim Germany. ;D
--- End quote ---
Sorry, :D Just goes to prove that I really AM the dumbest man on the planet :P
SloGlo:
'n alla dis cornfusion shows eye ain't da onliest person whut kneads translation now 'n den. ;)
Kernwerker:
--- Quote from: alphadude on Sep 11, 2006, 11:52 ---well depending of the design of the plant incore seal work for HPs will involve working with materials that were subjected to incore irradiation. If the seals leaked you will have lots of contamination, with particles. If not you may just be pulling the incore which can be megga rad. parking the incores involves pulling the incores our prior to refuel to a certain location. (dose control) I have worked incore tables where the seal leaked and it looked like a wedding cake with all the boron encrusted, and I have worked incores while at Big Rock that was a walk in the park. Also worked at flux mapping on one old unit where the incore was inserted- copper detector- then timed and then pulled to take a dose rate- high dose rate = hot core section. the drives can be contaminated with particles and stuff if the tubes leaked etc yadda and so on.
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I just have one more question to this subject. Where do you pull out the encores? My work colleague heard that you pull the instrumentation unit from the bottom of the vessel? I am just a bit confused because with your statement about boron encrustment, I was imagining a vessel head full of boron prior taking the head off. Well you guessed it right we pull the instrumentation unit from the top underwater when the reactor cavity is flooded for refueling and the encore instrumentation is on a defined spot in the fuel pool
Marlin:
--- Quote from: Kernwerker on Sep 15, 2006, 12:59 ---I just have one more question to this subject. Where do you pull out the encores? My work colleague heard that you pull the instrumentation unit from the bottom of the vessel? I am just a bit confused because with your statement about boron encrustment, I was imagining a vessel head full of boron prior taking the head off. Well you guessed it right we pull the instrumentation unit from the top underwater when the reactor cavity is flooded for refueling and the encore instrumentation is on a defined spot in the fuel pool
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Incores come out of the top (CE) or the bottom (Westinghouse) depending on design and in some (B&W) a separate incore tank is used for storage that is separate from the fuel pool. The boron is a crust left by leakage, just as calcium builds up on a shower head or faucet but only in PWRs.
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