*** Fukushima *** and other nuclear-----updates and links

<snip>

2. ACCIDENT INITIATING EVENTS AND PROBABILITY ESTIMATES
2.1 Loss of Water Circulating Capability
The spent fuel basins of U.S. nuclear power stations contain a large inventory
of water, primarily to provide ample radiation shielding over the top
of the stored spent fuel. Some typical pool dimensions and water inventories
are shown in Table 2.1. The heat load from decay heat of spent fuel depends
on decay time since the last refueling. Heat loads for the entire spent fuel
inventory of the two older plants are shown in Table 2.2 (data extrapolated to
the 1987 scheduled refuelings). The cooling systems provided for spent fuel
pools typically have a capacity in the range of 15 to 20xl06 Btu/hr (4.4 to
5.9xl03 kw).
In the event that normal circulation of the cooling water is disrupted,
e.g., due to station blackout, pump failure, pipe rupture, etc., the water
temperature of the pool would steadily increase until bulk boiling occurred.
(Note: In a situation where the stored inventory was small, an equilibrium
temperature, below the boiling point, would be reached at which surface evaporation
balanced the decay heat load).
Thermal-hydraulic analyses of the consequences of partial or complete
loss of pool cooling capability are a routine part of the safety analysis reports
required for licensing and amendments thereto. Generally, these analyses
consider several scenarios ranging from typical to extremely conservative
conditions. A sampling of conservative results for several plants is given in
Table 2.3. The data clearly demonstrate that the time interval from loss of
circulation until exposure of fuel to air is quite long. Even in the most
pessimistic case cited in Table 2.3 (Docket No. 50-247), the water level in
the pool would drop only about 6 inches per hour. Thus, there is considerable
time available to restore normal cooling or to implement one of several alternative
backup options for cooling.
For licensing purposes, it has been accepted that the time interval for
restoring cooling manually from available water sources is adequate without
requiring active (automatic) redundant cooling systems.
However, in considering the prioritization of Generic Issue 82, "Beyond
Design Basis Accidents in Spent Fuel Pools," the NRC staff recognized that
there is a finite probability that cooling could not be restored in a timely
manner.2 The case treated in Ref. 2 was for a BWR. The estimated frequency
for the loss of one (of two] cooling "trains" was taken to be 0.1/Ry (the
value assumed in WASH-1400).3 This combined with the conditional probabilities
of failure/non-availability of the second "train" yielded a combined frequency
of a pool heatup event of 3.7xlO"2/Ry. (This estimate appears to be
somewhat conservative since no "pool heatup events" are on record after ~103
reactor years of accumulated experience).
To escalate from a "pool heatup event" to an event which results in fuel
damage requires the failure of several alternative systems that are capable of
supplying makeup water (the RHR and condensate transfer systems, or, as a last
resort, a fire hose).

<end snip>

guess it was a last resort indeed.... guess they weren't talking about salt water there either.... nice report....

[link to www.osti.gov]

OPINION: Nuclear power post-Fukushima: Maybe France no exception after all
By Mycle Schneider
PARIS, April 11, Kyodo

Pictures of smoke coming out of the reactor building at Penly nuclear power station sent a shiver down the spine of the French television viewer.

Around lunchtime on 5 April, unit 2 had an emergency shutdown and external firefighters were called in to put out two fires of oil that had spilled from a primary cooling pump. In the early evening the operator realized that cooling water was leaking. It took until 4 o'clock the next morning to stop the loss of coolant from a damaged joint of the pump.

The event is a powerful reminder that something can go wrong anytime at any of the 58 reactors in the country. Between 600 and 800 ''significant events'' in nuclear power plants are registered every year in France.

The government had deployed every effort to keep the nuclear myth alive and well. Less than two months after the Fukushima crisis started unfolding, President Nicolas Sarkozy stated during a visit to Europe's largest nuclear power plant at Gravelines: ''As Chief of State I have confidence in the safety of the French nuclear fleet... Just because there was a tsunami in Japan, we should call into question what represents the strength of France, the pride of France, the independence of France?''
[link to english.kyodonews.jp]
.

Asahi: Cesium at 172 times gov’t limit in tea near Sendai — Will not cause health problems ‘soon’ after being consumed, says radiation professor — 1,100 already sold
[link to enenews.com]

Electric Power Co. (which operates the crippled Fukushima No. 1 nuclear plant) said it will not provide compensation without test results for radiation,”

oxy moran fuku 50 tepco



glad you are back water bug !!!!!!!!!

Thanks, AR. Couldn't abandon my buds....

We're all in this thang together, come what may.

@ CP

That article said a lightly filled fuel pond would not boil. The reactor 4 pond is overloaded and extra hot because of the recent[relatively] unloading of the reactor fuel rods. Doesn't bode well...

Hope they can keep it under control.

~

We are all stressed out here it has been a yr so far heck last year my readings were driving me nuts to .I kept the readings in a journal in august 0.41usv/hr in michigan usa!
so thanks friends bug .southern org/cp /ac? and a few from over seas who held on . bug we need you . and remember this is on the ball as well very few of us and we need to ruck up

Welcome back Bug! Good to "see" you again.

ahh it feels all homey again, and more to the point as AR said,some of us willing to sniff dogs balls... and as a present, AB promised to leave.... WOOOT!

Good take on the situation AR, seems there are those of us that knew this would be a long duration event and stayed to see what info we could find. My hat is off to our friends here, the down side is we were right all along.

To quote one of my favorite's "I've always been crazy but it's kept me from going insane...No body knows if it's to bless or something to blame". ~ Waylon Jennings

Well, at least we have an idea of what is happening. Most don't have a clue...

I've been ruminating on the responses I've seen to the fuku threads today and I see a lot of bad information being propigated. It is so hard to get through to people. They don't seem to want to face the facts. Nothing new there, but the exposure on glp should have informed a lot better than what seems to be the case.

Just gotta keep on keepin' on. I don't know what else we can do. The dis-info will continue and so we at least are somewhat of a counter to that.

S. I knew Waylon a little. A band I was in was managed for awhile by a member of the Crickets. We did some package shows with Waymore. Always admired his 'nashville rebel' persona. He didn't give a crap. Did things his own way. He was trying to quit smoking but every time he saw me he bummed a cig. I tried to give him a pack, once, but he said, "No thanks. I'm trying to quit." Pretty funny.

~
wb

You should do a Reality Check
because your Ideas may be wrong!

Ask yourself why the overwhelming amount
of real Scientist are very quite,
even Greenpeace don't share your Bandwagon!

You have had such an interesting life, can't imagine actually meeting Waylon...He is my all time favorite. Kind of like us here, we don't give a crap. We will post what we find to be true. Not trying to win any personality contests, just trying to put forth the facts as we see them.

I actually think about that a lot. The scientists willing to speak out are almost non-existent. I think arnie is willing because that is what he does since losing his job due to whistle-blowing.

For the most part, they probably don't want to come under scrutiny for going against what is obviously a .gov policy of squashing the information to avoid panic.

Preserving status quo is the motive. As the situation has progressed, the sheer lack of scientific interpretation is telling, don't you think?

No one with any status or face recognition is willing to buck the system.

Guess that leaves it up to honest, compassionate people like you and me....

~

He was pretty cool. I've been around and met a lot of 'famous' people of all sorts. Played golf with Tom Landry once. I don't usually mention anything on glp because I get accused of name-dropping. I don't have to make it up, but no one knows my background, save a few...

I could tell stories for days..

~

atom-boy is so compassionate and caring.. i loves him much.....

Caught that, didja?

I really think he would miss us if he left. At least the friendly one would. hehehe.

~

35 Ton Machine discovered in Unit 3 Spent Fuel Pond lying on Nuclear Fuel Racks.

Ffs.

[link to enenews.com]

Are you not scared that your interpretation
of the Accident is wrong,
i mean after the release of the Photographic
Evidence for SFP Nr. 3?

Okay, u was not alone in that Club
but........ .....?

I am happy and satisfied by this Pics
and will celebrate it later!

there was a friendly one?

Yip, two of the other Shift are very friendly,
otherwise you would be too ashamed to return to our Glp!

But please explain the Pictures of Nr. 3 and 4!
According to you and you and you they should be not there



Last Edited by The real and almighty Atom-Boy on 04/14/2012 07:41 AM

Six nations resume talks with Iran
Representatives from Iran and six countries resume their talks on Iran's nuclear program in Istanbul on Saturday. This comes after a 15 month-long deadlock.

The participants in the talks, which include the US and countries in Europe, as well as Russia and China, are gathering for the first time since January 2011 when a previous meeting ended without an agreement.
[link to www3.nhk.or.jp]
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Survey on the inside of Unit 3 Spent Fuel Pool
[link to photo.tepco.co.jp]
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Scientists to probe March 11 quake mechanism
An international group of researchers is set to start deep-sea drilling in waters off northeast Japan to find the mechanism of the earthquake and tsunami on March 11th last year.

The drilling vessel Chikyu, or Earth, carrying the researchers has reached the seismic center near the Japan Trench, about 220 kilometers east of Oshika Peninsula in Miyagi Prefecture. Preparatory work was revealed to the media earlier this week.

The scientists from 10 countries, including Japan, the United States, and those in Europe, will start drilling on Sunday to analyze movements of faults in the seabed.
[link to www3.nhk.or.jp]
.

<snip>

390 mg/kg of lead was measured in nursery school of Yokohama
Posted by Mochizuki on April 14th, 2012

Following up this article..8400 Bq/Kg of lead-210 was measured from sample of Yokohama 390 mg/kg of lead was measured from the soil of the play ground of a nursery school in Yokohama. Because arsenic and lead were found more than the safety limit of 150 mg/kg in the parking lot located next to the nursery [...]

<end snip>

[link to fukushima-diary.com]

Iran nuclear talks constructive and meet again
Representatives from Iran and 6 other countries resumed talks on Iran's nuclear program after a 15-month deadlock, and have agreed to meet again next month.

The participants, among them the US, Russia, and China, had 10 hours of discussions in the Turkish city of Istanbul on Saturday.

The parties agreed to meet again on May 23rd in the Iraqi capital, Baghdad.
[link to www3.nhk.or.jp]
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Evacuated horses return to Fukushima
Horses evacuated from Fukushima Prefecture after the nuclear accident are returning to their homes for a performance in a traditional event.

Minamisoma City sent 52 horses used in the performance to a town in Hokkaido, northern Japan. It had become difficult to get hay for them and many owners themselves left after the nuclear accident at the Fukushima Daiichi power plant.
[link to www3.nhk.or.jp]
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Japan to be without operating nuclear reactors on May 6: Edano
Industry minister Yukio Edano confirmed Sunday that no nuclear reactor will be in operation in Japan ''momentarily'' from May 6 as the last reactor in operation is set to go offline for maintenance the day before.
[link to english.kyodonews.jp]
.

don't think they are being truthful. something is going on.

Radiation leak fear at Sydney's Lucas Heights as four workmen contaminated
[link to www.dailytelegraph.com.au]