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Nuclear Engineering Issues

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AlMac99 bevcorwin Harry Sauberman Kathy Gilbeaux Maeryn Obley mdmcdonald

Email address for group

nuclear-engineering-issues@m.resiliencesystem.org

Attachments via Al Mac - Perspectives

I am using this naming, in hopes of me being able to find this post again, next time I have some important attachment which I think is worth sharing.

Hopefully my doc naming is meaningful to other people:

  • What kind of doc content is this?
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My "time line" combines credible info from multiple sources to see the progression of events severity.

My glossary tries to make sense of the intensity of sometimes unfamiliar terminology.

IAEA Sends International Fact-finding Expert Mission to Japan

May 17, 2011

The International Atomic Energy Agency will dispatch an international expert fact-finding mission to Japan.

Based upon the agreement between the IAEA and the Government of Japan, the mission, comprising nearly 20 international and IAEA experts from a dozen countries, will visit Japan between 24 May and 2 June 2011. Under the leadership of Mr. Mike Weightman, HM Chief Inspector of Nuclear Installations of the United Kingdom, the mission will conduct fact-finding activities at Tokyo Electric Power Company's Fukushima Dai-ichi Nuclear Power Station (NPS) site and in other locations.

The expert mission will make a preliminary assessment of the safety issues linked with TEPCO's Fukushima Dai-ichi NPS accident following the Great East Japan Earthquake and Tsunami. During the mission, areas that need further exploration or assessment based on the IAEA safety standards will also be identified.

In the course of the IAEA mission, the international experts will become acquainted with the Japanese lessons learned from the accident and will share their experience and expertise in their fields of competence with the Japanese authorities.

What Fukushima's Triple Meltdown Means

Time - May 24, 2011

Two weeks after announcing the meltdown of fuel inside Fukushima's No. 1 reactor, Tokyo Electric Power Company (TEPCO) has said there have very likely been partial meltdowns at the other two reactors that were operating when the crisis began on March 11 as well. A spokesman for TEPCO, Japan's largest power company that has come under fire for its management of the crippled plant, said fuel rods at reactor No. 3 started melting March 13, two days after the 9.0 earthquake and ensuing tsunami struck the plant. Fuel rods at No. 2 probably started melting a day later, on March 14.

Fukushima Plant's Nos. 2, 3 Reactors Also Suffered Meltdown: TEPCO

JapanToday.com - May 24, 2011

TOKYO —

The operator of the troubled Fukushima Daiichi nuclear power complex said Tuesday that meltdowns are assumed to have occurred in the cores of the Nos. 2 and 3 reactors in addition to the meltdown already confirmed at the No. 1 reactor, but stressed that it believes the melted fuel is being kept cool at the bottom of the pressure vessels.

Tokyo Electric Power Co also maintained its view that it was only after the giant tsunami hit after the devastating March 11 earthquake that the plant lost all its power sources, eventually leading to the loss of the reactors’ key cooling functions.

The announcement came as the utility is proceeding with work to assess data taken shortly after the nuclear accident occurred. Industry minister Banri Kaieda said the government agreed at a cabinet meeting Tuesday to set up a third-party panel to look into the causes of the country’s worst ever nuclear crisis.

The government has tapped Yotaro Hatamura, a 70-year-old professor emeritus at the University of Tokyo, as head of the special panel, Deputy Chief Cabinet Secretary Yoshito Sengoku said in a press conference.

Japan Tsunami 2011: TEPCO Releases Dramatic Photos Of Wave Striking Fukushima Nuclear Plant

Huffington Post - AOL News - May 19, 2011

The Tokyo Electric Power Company (TEPCO) has released a dramatic series of photos that show the March 11 tsunami battering the now-crippled Fukushima Daiichi nuclear plant.

The photos, which first appeared on TEPCO's website Thursday, saw a colossal surge of water breaching the seawall guarding the plant as well as the flood inundating some of the plant's buildings, leaving several cars bobbing in the water, Voice of America is reporting.

The tsunami was triggered by a magnitude 9.0 earthquake which struck off Japan's northeast coast.

View dramatic photos of the tsunami, courtesy of TEPCO, in the link below:

Plan to flood Fukushima reactor could cause new blast, experts warn

 

Experts have warned of a potentially dangerous radiation leak if Japanproceeds with plans to flood a damaged reactor containment vessel at the Fukushima Daiichi nuclear plant. The facility's operator has admitted uranium fuel rods in the No 1 reactor partially melted after being fully exposed because of the 11 March tsunami.

Japan Wants 3 Reactors Shut Until Seawall Built

Chubu Electric asked to 'swiftly consider' government's request

Japan has urged a power company to suspend all three reactors at a coastal nuclear plant while a seawall and other structures are built to ensure a major earthquake or tsunami does not cause a second radiation crisis.

The move came Friday as the government is conducting a safety review of all Japan's 54 nuclear reactors after the Fukushima Daiichi nuclear plant was crippled by the March 11 earthquake and tsunami that left more than 25,000 people dead and missing on the northeast coast.

The Hamaoka nuclear plant just 100 metres off the Pacific coast in central Japan is the only one so far where the government has asked that operations be halted until the utility can implement safety measures.

Chubu Electric Power Co. said in a statement it will "swiftly consider" the government's request. The statement gave no further details. Government officials estimate the work could last two years.

Prime Minister Naoto Kan said at a news conference Friday evening he requested the shutdown for safety reasons, citing experts' forecast of a 90 per cent probability of a quake with magnitude of 8.0 or higher striking central Japan within 30 years.

In Japan's Nuclear Nexus, Safety is Left Out

April 26, 2011

The 2011 Off the Pacific Coast of Tohoku Pacific Earthquake and the Seismic Damage to the NPPs

April 4, 2011 - Summary

Nuclear and Industrial Safety Agency (NISA)

Japan Nuclear Energy Safety Organization (JNES)

(see attachment below - 76 page PDF report)

Detailed Status Report - All TEPCO - Owned Facilities in Japan

Detailed Status Report of All TEPCO Facilities and its services after the Tohoku-Chihou-Taiheiyou-Oki Earthquake (as of 4:00PM, April 24)

(see attachment below - 12 page PDF file)

Pages

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