EPT"I don't care what you feel, tell me what's going on. You know it's not the same kind of hydrogen explosion as last time right? You thinking about that?"
Crisis in Japan - Page 122
| Forum Index > General Forum |
Thread is about the various issues surrounding Japan in the aftermath of the recent earthquake. Don't bring the shit side of the internet to the thread, and post with the realization that this thread is very important, and very real, to your fellow members. Do not post speculative and unconfirmed news you saw on TV or anywhere else. Generally the more dramatic it sounds the less likely it's true. | ||
|
dump
Japan514 Posts
"I don't care what you feel, tell me what's going on. You know it's not the same kind of hydrogen explosion as last time right? You thinking about that?" | ||
|
HolydaKing
21254 Posts
On March 15 2011 08:37 dump wrote: The press is losing its patience with the press conference people on NHK. "I don't care what you feel, tell me what's going on. You know it's not the same kind of hydrogen explosion as last time right? You thinking about that?" to be honest, they all look so damn tired... but they also seem to hide something, i don't know. hopefully they aren't hiding something. | ||
|
hugman
Sweden4644 Posts
| ||
|
Dimagus
United States1004 Posts
| ||
|
sqrt
1210 Posts
On March 15 2011 08:37 dump wrote: The press is losing its patience with the press conference people on NHK. "I don't care what you feel, tell me what's going on. You know it's not the same kind of hydrogen explosion as last time right? You thinking about that?" Can't blame them. This fiasco has been going on for three days adding to the Tsunami and Quake disasters, not to mention there can be more. People want to know what's going on and these guys keep beating around the bush. | ||
|
hifriend
China7935 Posts
On March 15 2011 08:40 Dimagus wrote: Are you sure mSv wasn't a typo? It was 1014 uSv/hr 2 days ago. For that to increase to 1914 mSv/hr.... Yeah he got it wrong by a factor of 1000, big difference.. | ||
|
Dimagus
United States1004 Posts
mSv/hr would be WAY above the legal limit. uSv/hr makes more sense | ||
|
AntiLegend
Germany247 Posts
| ||
|
Maggeus
France277 Posts
I'm hearing too much "micro" and think "m" >_< | ||
|
hugman
Sweden4644 Posts
You can copy it if you'd like | ||
|
crun
Poland30 Posts
On March 15 2011 08:36 Maggeus wrote: Okay. 1 mSv is equal to the annual dose for the public. 4 Sv = 4000 mSv is equal to a dose that has 50% chances of killing you. Meaning 2 mSv/h is huge, and not. It's a lot above the legal level, but it's not life threatening. 500 sv/h kills within 5 hours. radiation near the reactors in chernobyl peaked 3000-30000sv/h just a comparision. | ||
|
Razith
Canada431 Posts
On March 15 2011 08:42 Maggeus wrote: I guess I made the mistake of putting m instead of u... :/ Sorry. I'm hearing too much "micro" and think "m" >_< So same explanation as before, just replace m with u? | ||
|
NIJ
1012 Posts
On March 15 2011 08:41 sqrt wrote: Can't blame them. This fiasco has been going on for three days adding to the Tsunami and Quake disasters, not to mention there can be more. People want to know what's going on and these guys keep beating around the bush. Well can't blame the conference people either. People want to know what's going on and they neither have the technical knowledge nor rational calm state of mind to process the information correctly. | ||
|
Oroch
Belgium143 Posts
2mS/h to 4ms/h can causes hematopoiesis syndrom and lymphocites and white blood cells levels going down (lymphocytopenia, leucopenia) and can cause anemia (lack of hemoglobin) | ||
|
Dimagus
United States1004 Posts
| ||
|
Nienordir
98 Posts
Honestly saying that it probably is a malfunctioning pressure gauge and not serious damage to the pressure vessel/supression pool seems very odd. | ||
|
Maggeus
France277 Posts
On March 15 2011 08:45 crun wrote: 500 sv/h kills within 5 hours. If you stay like 5 minutes you would die anyway. :/ | ||
|
AntiLegend
Germany247 Posts
| ||
|
Celerios
Canada65 Posts
| ||
|
TimeOut
Germany1277 Posts
On March 15 2011 08:26 AntiLegend wrote: what i was always wondering about those explosions: + Show Spoiler + ![[image loading]](http://www.nucleartourist.com/images/bwr-cycle.gif) it is my understanding that the explosions happen due to hidrogen/oxygen in the area between primary and secondary containment. a) how does it get there? b) cant you just open a door or something? c) if the secondary containment gets blown away, wouldnt the water and steam pipes rupture and thus more or less be a "leak" of the primary containment? This image might be more helpful for the current situation and the explosions: ![[image loading]](http://i.imgur.com/i4w9F.png) This is an illustration showing a type I containment structure, the same general type that is used in the Fukushima I plants. There might be slight differences to the actual reactor in Japan, but it is good enough for an explanation. a) Steam was vented from the inner containment into the secondary containment to reduce the pressure in the reactor. This is done because the steam is slightly radioactive, so it is a good idea to keep it inside the containment. They could have vented the steam directly to the outside without any serious repercussions, but as long as they have the option to contain it until it has sufficiently decayed, they should do so. It was vented into the upper part of the building, which is sealed to allow such a thing. This part of the building exploded, which is why you can see that the upper part is missing in the photos (where the crane should have been). b) Yes, they could have vented the steam directly to the outside, which could have prevented the explosion. As I said above, this was not done, because it is better to let the small radioactivity decay inside a controlled and contained area instead of outside (although it shouldn't be hazardous). c) Pipes can be closed. It would be bad if the whole building would be destroyed, but as long as the inner containment is intact, no harmful material would escape. It would make accessing and cooling the reactor much harder though. --- About the current situation: The explosion was 2 hours ago. Non-mandatory staff has been evacuated as a safety precaution. They are continuing with the sea-water injections, pressure inside the primary containment remains stable. Source of the explosion is currently unclear, but another Hydrogen explosion is suspected. (Source: NHK live press conference, before it got cut off.) | ||
| ||
