Recent content by shadowncs
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Japan Earthquake: Nuclear Plants at Fukushima Daiichi
That's my impression also. SteveElbows said the floor below is common to the floor of the torus room - probably with some separation doors (which might be blown open, we won't know for a long time). To get that kind of lifting and door bulging a pressure spike (cause I can't imagine being...- shadowncs
- Post #12,623
- Forum: Nuclear Engineering
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Japan Earthquake: Nuclear Plants at Fukushima Daiichi
And perhaps it is? In the vids you can clearly see both unit 2 and unit 3 lower-level basements are flooded at the stairwell. For unit3 vid the worker spends a large amount of time measuring radioactivity of the stairwell water, outside the torus room, which appears to be a few meters lower than...- shadowncs
- Post #12,609
- Forum: Nuclear Engineering
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Japan Earthquake: Nuclear Plants at Fukushima Daiichi
Judging from unit 2 video the door is not as thick as one might guess. Certainly it has a knob and can easily be opened (and more importantly closed) by hand. As I understand it this is not a door into containment, it's just a door to the torus room. While torus is part of containment the room...- shadowncs
- Post #12,607
- Forum: Nuclear Engineering
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Japan Earthquake: Nuclear Plants at Fukushima Daiichi
And pic4 (sorry for doublepost)- shadowncs
- Post #12,603
- Forum: Nuclear Engineering
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Japan Earthquake: Nuclear Plants at Fukushima Daiichi
Looking at the vid from unit 3 - at about 4:30 there is the door (pic1, pic2), definitely bent outwards like from an inner containment blast. Also following the attempts to open the door (kicking at it) there is this pipe that apparently has its cap blown off (pic3) - they even stick the geiger...- shadowncs
- Post #12,602
- Forum: Nuclear Engineering
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Japan Earthquake: Nuclear Plants at Fukushima Daiichi
From the curvature of the panels in PIC 2 as well as from the position of the FHM in PIC 1 (present in PIC 2 on the right) I'd say those guardrail panels are the top of reactor guard panels (also visible from the other side in PIC 1)- shadowncs
- Post #12,434
- Forum: Nuclear Engineering
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Japan Earthquake: Nuclear Plants at Fukushima Daiichi
I too would guess they are just some steel girders from all the mess that - were modestly heated up by the underlying SFP steam - were modestly heated up by the morning sun (assuming time on photo is in Japan timezone) The difference is 10 deg Celsius, IR camera is calibrated on quite a...- shadowncs
- Post #11,538
- Forum: Nuclear Engineering
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Virginia US Earthquake - Nuclear Plant
I've seen them on a slide, I think unit 2 would be in leve 6 (can't remember when) and unit 1 in level 4 meaning ready to restart.- shadowncs
- Post #38
- Forum: Nuclear Engineering
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Virginia US Earthquake - Nuclear Plant
I listened for a while although I didn't get many of the jargon (what is level 4 / level 6 status?) It really sounded to me like there is no damage that would prevent it to go online... one of the important things they proved is that the fuel is undamaged using the chemistry of primary coolant...- shadowncs
- Post #35
- Forum: Nuclear Engineering
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Virginia US Earthquake - Nuclear Plant
Thanks, makes sense. That video is awesome and without you explaining would have been scary as hell.- shadowncs
- Post #8
- Forum: Nuclear Engineering
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Virginia US Earthquake - Nuclear Plant
from http://www.cnn.com/2011/US/08/23/virginia.quake.nuclear/" about North Anna quote: "Amanda Reidelbach, an emergency management spokeswoman for Louisa County, said the plant vented steam, but there was no release of radioactive material." Why are they venting steam? WTH? I hope it's just...- shadowncs
- Post #5
- Forum: Nuclear Engineering
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Japan Earthquake: Nuclear Plants at Fukushima Daiichi
OT just watched the http://www.tepco.co.jp/en/nu/f1-np/camera/index-e.html" wondering if it's not playing in a loop, things were so quiet. And there comes this badger-like animal going right on the roof to the right of the pipes & then jumps down and goes out of frame. Amazing. I'm convinced...- shadowncs
- Post #8,814
- Forum: Nuclear Engineering
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Japan Earthquake: Nuclear Plants at Fukushima Daiichi
Yes, that would be the hill behind the plant and if those are runups then the tsunami left the mark on those hills. Look at the left marks that cross a road going downhill at an angle. If they're not runups I don't know what they are.- shadowncs
- Post #2,260
- Forum: Nuclear Engineering
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Japan Earthquake: Nuclear Plants at Fukushima Daiichi
We can only speculate but look at aerial-2011-3-30-0-50-45.jpg from 20 March... if those are tsunami runups then we have an idea.- shadowncs
- Post #2,250
- Forum: Nuclear Engineering
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Japan Earthquake: Nuclear Plants at Fukushima Daiichi
Cut from aerial-2011-3-30-0-20-11.jpg - I think it clearly shows the round outline of PRV from unit 4, to the east side of the building. Wouldn't it make sense to be in the same position in unit 3? Roughly where lots of steam is seen in the same picture over reactor 3 Shot is from March 20...- shadowncs
- Post #2,227
- Forum: Nuclear Engineering