Recent content by tadjik

Water injection has been slowed, I think. At least for unit 1. http://www.bloomberg.com/news/2011-04-29/tepco-slows-water-injection-at-reactor-to-curb-risk-of-explosion.html

In my vision, high concentrations in Iodine, cesium, and fission product can be due to either : 1) remaining fission in leaking used fuel rods (which are numerous and active in SFP #4) 2) cricality in any part of the stored fuel 3) contamination by rain They indicate the concentration are...

Where do you find the source material ? I have this link in english http://www.nisa.meti.go.jp/english/ , but the information are 2 days old. Maybe ... anyway, there will be, on the long run, chronic exposure to caesium for the area inhabitants. Even at low levels, this could have an effect on...

OK, I understand for nitrogen. Thanks. But the source gives temperature slowly going down; of course, they can think the data are wrong but it seems to me the 2 measures are "coherent" both in time and between them. On the other hand, it does not exclude increase elsewhere in the system, of...

Apparently, whatever phenomena increases pressure in reactor 1, it seems progressive. http://www.ic.unicamp.br/~stolfi/EXPORT/projects/fukushima/plots/v6/plot-un1-full.png Any hope this could just be some H2O vapor ? And (if the question has not been raised yet) : 7 atm is a very high...

Yes, there are leaks; anyway, from reports I read (maybe NISA), I've seen that water injection is apparently not permanent, so I suppose they could, in fact, raise the water level, even tough they have oubviously leaks at every reactor.

Like you, I've been wondering why the water level is stable. From what I've read all around, I tend to think (pure speculation of mine) that they can wish to maintain it stable since they don't know the géometrical configuration of the fuel in the upper part of the core (most things have melt in...

Don't know why ... The figures for the inside (I suppose) reactor are hardly understandable. Below atmospheric pressure un all cases except reactor 1 (and negative for 2 3). That's why I only read ther Dry well and Supression Chamber. If anyone has a explanation (except instrumentation broken) ...

Could it be ... that : http://www.nisa.meti.go.jp/english/files/en20110325-1-4.pdf Supression chamber : 2 atm Dry water : atmospheric Temperature : relatively low Radioactivity similar to other reactors