ScribbleLive

Seems #4 is still steaming away, the damage i noticed the other day (missing section of #4 structure) can now clearly be seen on the TBS cam, look at rh corner of building.

elaine are you there

preliminary data for my write up... divided into 3 cases depending on what systems were available to the operators after the EQ/TSUNAMI...

time start can be 10 minutes after EQ when problems were experienced with diesel generators..

@Pedro, you are getting the basement and basemat mixed up. The "basement" is the lower parts of the building around the torus. It is not underneath the reactor. The "Basemat" (Drywell or D/W) is the concrete that is directly underneath the reactor. There is NO water in the basemat !!! The corium would have to melt through the RPV, the containment vessel, and then through the concrete basemat It is about 5-10 meters thick (or so ?). An article from a meltdown testing facility stated it would take 28 days for the corium to melt through the D/W or basemat concrete. If the corium hit the basemat earlier this month, then we should be coming up toward the 28 days by the end of the month ???

and see if you can post it..
ok will it still not let you post !!?

@Pedro, the basement is a lower building "work area". That's where all the pipes come and go, so water could have easily leaked into it.

something for looking at and discussing

Awesome

yeah.. elaine..

@Pedro, The basement goes around the outside of the torus, it has walkways, piping, stairs, and doors in it. It is accessible to the work crews. The basemat is only underneath the reactor vessel. It is entirely concrete to the bedrock beneath it. It has no doors, piping, stairs, etc.

time in minutes

Sorry, you posted as I was posting

does not take into account the damage to reactor vessel or systems as a result of EQ

my lap top battery is almost toast.. so if i cut out I will come back when I get home

@Dean, can you elaborate on the electric penetrations in the Drywell/Wetwell area ?

@wtm @Pedro I think you two are talking about the same thing, Pedro's just including the basemat as a portion of the basement since it's at the same level, just filled solid, while @wtm considers the basement only as the 'void' portion. Otherwise, I think you two are on the same page.

@dean Has anyone ever considered embedding sensors in the solid basemat or in the soil below? If not, how would an operator know if corium has penetrated it?

@Pedro,Jay, just the names can get confusing, too similar ! The area I am talking about is in the cross section of the Mark I diagram, that Pedro posted. It is only that small area directly underneath the reactor. That is where the corium would eventually drop to, and it is all concrete between there and the bedrock. Although it is about 5-10 meters thick. With our luck TEPCO would have only poured it 5 meters instead of 10 meters.

@wtm Yes, I think we've got it clear now. Thank you. =)

*corium

@estacion I waiting his anser for the 1 subjetc, sun I get it I will send yours. I also invite hin and give the wiki link
:-)))