Saturday, November 19, 2011

Japanese Researcher: "Reactor 2 Suppression Chamber May Have Been Damaged in the Earthquake"

The researcher, Fumiya Tanabe, is the same one who also said back in August that the fuel of Reactor 3 had melted twice and dropped onto the Containment Vessel.

If what he says is true that the Reactor 2's Suppression Chamber broke during the earthquake, it may have grave implications for all the other nuclear reactors in Japan with the same earthquake specifications.

Reactor 2's building exterior is pretty much intact, with only one hole on the side of the building. Yet, the NISA's estimate shows this reactor may have released more radioactive materials than the other reactors (1 and 3). If the Suppression Chamber was broken as soon as the earthquake hit on March 11, that may explain it.

From Kyodo News Japanese (11/19/2011):


An expert in nuclear safety complied the result of the analysis by November 19 that shows the high possibility of the Suppression Chamber of Reactor 2 at Fukushima I Nuclear Power Plant having been damaged or degraded by the earthquake.


TEPCO still maintains its position that there was no visible damage to the reactors by the earthquake, and the cause of the accident was the loss of power because of tsunami. If the reactors were damaged by the earthquake, it would affect other nuclear power plants in Japan whose anti-earthquake standards are the same as those of Fukushima I Nuclear Power Plant. A closer look at the result of investigation by TEPCO and the fact-finding committee of the national government would be warranted.


The researcher who did the analysis is Fumiya Tanabe, a former researcher at the Japan Atomic Energy Agency (JAEA) and the current head of the Research Institute on Safety of Technology Systems (my translation, and not the formal name of the organization; 社会技術システム安全研究所) in Hitachinaka City in Ibaraki Prefecture.

I am trying to locate the details of his findings.


Anonymous said...

FWIW, Dominion Resources, the Virginia based electric utility, is reviewing its application to construct a third nuclear reactor at its Lake Anna power plant. The review is in light of the 5.8 Richter scale earthquake that shut down its two existing reactors this past summer.

While Dominion states the design of the new reactor facility will be several times more resistant to earthquake stress than its current NPPs, one wonders if nothing has been learned from Fukushima!

Does Dominion plan on operating a new nuclear reactor even if its other reactors are damaged from another earthquake? It is as if TEPCO were to argue its Fukushima reactors 5 and 6 could operate even if reactors 1-4 were destroyed! The chain is broken at its weakest link. It does no good to build new 'links' if the old ones are at risk!

Anonymous said...

Good one. Here is another one, which food do you ask citizen to be careful and never ever eat?
Which of the 2 do you use mass media to make sure that people understand the health risk?
Which case to use law to 100% ban the risk?
Can you guess which one the Japanese Government choose?

1- eating meat that might be contaminated with mad cow disease? (note: chances are less than 1/80,000,000 or 1 in 80 million)

2- eating food that, if you DO NOT LIMIT it severely, could affect your health in a wide array of ways and can kill you or create genetic problems and health problems to you or even maybe all of your descents (chances are 1/100 or 1 percent to up to 35/100 or 35 percent)

Anonymous said...

Response is no 2, food that is lightly to highly contaminated with radioactive isotopes or radionuclides from Fukushima radionuclides fallouts (or from contaminated air from waste burning facilities that contains isotope dusts).

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