ScribbleLive

@all Age related safety management in the BWR www-pub.iaea.org

@all From the same link: transient behavior in a BWR running a Mox fuel core is generally more severe. 3.3 Safety Parameters
Moderator void coefficient, Doppler coefficient and dynamic parameters were evaluated
to investigate influences upon a transient and accident behavior of a high burnup MOX fuel and
core. The results are summarized in Table III.
Generally a static void coefficient of MOX fuel tends to be more negative compared with
that of UO2 fuel. Consequently increasing a loading fraction of MOX fuel in a core leads to larger
core average void coefficient. Dynamic void coefficient taking delayed neutron fraction into
consideration is important from transient behavior standpoints. An increase of dynamic void
coefficient of MOX core will be larger than that of static void coefficient because of smaller
delayed neutron fraction of MOX fuel.
Generally, a transient behavior such as Turbine Trip event will be severe because of larger
void coefficient. But, since current BWR has fast speed SCRAM mechanism, void coefficient
increase does not affect a operational limit.
Doppler coefficient of MOX fuel is slightly more negative than that of UO2 fuel. This will
moderate a behavior of reactivity initiated accident such as control rod drop accident. A power
excursion is suppressed by large Doppler effect, and a fuel enthalpy increase will be in low.
www.iaea.org

@all Hello, good morning and good evening!

@all Still following the mox thread, and potentially stuck in mod. Don't know when this may post, but WOW! "Prior to the
manufacture of the Tokyo Electric Fukushima-I-3 MOX fuel, Belgonucleaire had only produced
commercial BWR MOX fuel for one client in Germany. Belgonucleaire does not have extensive BWR
MOX manufacturing experience. Nor can it be said that electric utilities have extensive experience of BWR
MOX use. The Fukushima-I-3 reactor will be only the third commercial BWR in the world to load MOX
fuel." archive.greenpeace.org

@Markfm Unfortunately, not surprising. I think it's more surprising that they admitted it.

@smoss those bits you posted on MOX are very disturbing.

did this stop working

@Nancy, a real package deal ;)

Here are a few links I like to check for data on Fukushima.

www.nei.org The white paper on the disaster
earthquake.usgs.gov Earthquake data
ptwc.weather.gov Tsunami Data
www3.nhk.or.jp Japanese govt. news in English
www.stripes.com US miilatary news
english.kyodonews.jp Kyodo news, Japan
www.yomiuri.co.jp More Japanese news
www.japantimes.co.jp And more news from Japan
www.tepco.co.jp TEPCO press relaeses
www.tepco.co.jp Radiation at the plant
atmc.jp Radiation at the plant and status of the reactors, look at the top of the page to see more info
www.nisa.meti.go.jp More plant data in English!
www.mext.go.jp Measurements of radiation around the plant and in N. Japan
www.fairewinds.com Videos from a consultant in the US about the plants
allthingsnuclear.org More info from Union of Concerned Scientists
www.hiroshimasyndrome.com More info to balance the two previous sources
www.tepco.co.jp Video still shot updated each hour of the plant
news.tbs.co.jp Live video, when it is working

Hey @hudebnik, still here in Hiroshima

Hi @bo phew I was beginning to think that the TEPCO strategy of boring everybody to sleep (or worse!) was working!

Well, living in Japan, I am used to this. This is the time that the US goes to sleep. My emails stop, FB stops. Why should this list be different?

True but I don't think I can remember 2 hours passing without a post before.

Where are you from, hudebnik?

I'm in London (UK not Canada)

Hi Bobby1

Yeah... late. I was looking into getting zeolite, checking out websites.

I just searched on Google News for "Fukushima" and "leaning" and the only thing related was the RT story.

@bo - well speaking as a former news editor at the BBC I know what short attention spans most journos have.