Recent content by hellbet

Speaking about ORNL study, eight hours after the Fukushima Daiichi Blackout Station, corium (molten fuel) may have melted through RPV then through the containment 7 hours later; that is the full melthrough sequence might be as short as 15 hours timeframe. Same reactor (Browns Ferry 1 unit)...

105 µSv/ is gamma dose rate from this sample, beta dose rate is 3.3 mSv/h (3300 µSv/h), though. http://www.tepco.co.jp/nu/fukushima-np/handouts/2013/images/handouts_130702_04-j.pdf Around 100 Sv/h (Cs-137) might be Gamma dose rate from a real fuel sample, if any.

Nice catch MadderDoc, it was all but evident to identify the FHM Trolley skating. Looks like one find out FHM3... finally.

Background plant looks like Hirono Power Plant (Fuel + Coal Plant) which is 10 Km South of Daini and 20 Km South of Daiichi; the 2 largest units on the middle are 1000 MWe and others are 600 MWe...

Is there any curving along the PIPS / LPRM guides? Quince's picture (a really nice one) shows the pipes apertures going mainly "down" that is with a 225° angle. Now, isn't the RPV location "upper" if the TIPS room location is right on the R/B 1st floor? Are LPRM inserted right along the pipe...

Nice graph tsusuji, every single word from Tepco should be double-checked and that's quite a tough job ;) Keep up the good work!

M. Ishikawa is really a very smart guy, now what if the "melted core" has already dropped to the confinement vessel and one stop the water? Now the corium will really be out of control... Maybe Tepco/Nisa know that evidence and consequently do "nothing" because there is nothing to do...

There is many more ambiguous terms to say the least within Tepco reports like "reactor" or "cold shutdown". We can't hope for any cold shutdown with a broken reactor (RPV), and we can't hope for any containment with a broken Dry Well and a "leaking" concrete shell. I'm well afraid everything in...

Tepco only cares of the "inside" part of the melted fuel that is the main part of so-called "corium" has probably escaped out the containment. How would you possibly care of something that is out of range? Frankly, I'm afraid we're now facing at some possible "melt-out" event taking place after...

Corium is not only made of melted fuel but also incorporates control rods, melted steel from RPV, rods support assembly and probably a lot of other "stuff" like pipes, bolts... If 100% or each core has melted through RPV, total corium weight might be initially around 260 T (Fuel) + all other...