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Posts Tagged ‘nuclear reactors’

Iran to build new nuclear research reactors-report

April 12, 2011 1 comment

reuters

 

TEHRAN, April 11 (Reuters) – Iran plans to build “four to five” nuclear research reactors and will continue to enrich uranium to provide their fuel, a nuclear official said on Monday despite Western pressure on Tehran to curb atomic work.

The head of Iran’s Atomic Energy Organisation, Fereydoon Abbasi, said Tehran would build the reactors “in the next few years” to produce medical radioisotopes, according to the students news agency ISNA.

“To provide the fuel for these (new) reactors, we need to continue with the 20 percent enrichment of uranium,” ISNA quoted him as saying.

Abbasi’s remarks are likely to deepen Western fears that Iran’s atomic work is aimed at Read more…

Confidential U.S. document reveals “new threats” at Fukushima: Risk of explosions inside containment structures… “Likely no water” in No. 1 reactor core — “Could persist indefinitely”

April 7, 2011 Comments off

enenews.com

U.S. Sees Array of New Threats at Japan’s Nuclear Plant, New York Times by James Glanz and William J. Broad, April 5, 2011:

[Emphasis Added]

United States government engineers sent to help with the crisis in Japan are warning that the troubled nuclear plant there is facing a wide array of fresh threats that could persist indefinitely, and that in some cases are expected to increase as a result of the very measures being taken to keep the plant stable, according to a confidential assessment [dated March 26] prepared by the Nuclear Regulatory Commission. …

The Times’ article spotlighted several items of extreme importance:

  • “Semimolten” fuel rods and salt are “impeding the flow of fresh water meant to cool the nuclear cores” in ALL THREE REACTORS
  • The water flow in reactor No. 1 “is severely restricted and likely blocked
  • Similar problems exist in No. 2 and No. 3, although the blockage is probably less severe
  • “There is likely no water level” inside the core of reactor No. 1
  • There is a possibility of “explosions inside the containment structures

Read the article here.

Japan’s nightmare gets even WORSE: All THREE damaged nuclear reactors now in ‘meltdown’ at tsunami-hit power station

March 15, 2011 Comments off

dailymail.co.uk

The Japanese nuclear reactor hit by the tsunami went into ‘meltdown’ today, as officials admitted that fuel rods appear to be melting inside three damaged reactors.

There is a risk that molten nuclear fuel can melt through the reactor’s safety barriers and cause a serious radiation leak.

There have already been explosions inside two over-heating reactors at the Fukushima Dai-ichi nuclear plant, and the fuel rods inside a third were partially exposed as engineers desperately fight to keep them cool after the tsunami knocked out systems.

'Meltdown': The Fukushima Daiichi nuclear plant moments after it was rocked by a second explosion today. Officials later admitted that fuel rods are 'highly likely' to be melting in three damaged reactors ‘Meltdown’: The Fukushima Daiichi nuclear plant moments after Read more…