Kategoriarkiv: Nuclear

Status of nuclear power 2010

Risø 27_vaerker_i_Kina.ashx

In total 27 plants are under construction in China of 64 worldwide.

Risø DTU has made its eighth report in the series: ‘Nuclear power and Nuclear Safety’, which gives a global overview of nuclear energy with a focus on safety and preparedness. This year’s report is a bit delayed because of the accident in Fukushima, which is also mentioned in the report that would normally cover only the year 2010. Continue

Managing nuclear spent fuel: Policy lessons from a 10-country study

By Harold Feiveson, Zia Mian, M. V. Ramana, and Frank von Hippel | 27 June 2011

Research published in the Bulletin of Atomic Scientists warns if nuclear waste management is not thought out from the beginning, the public in many countries will reject nuclear power as an energy choice.

Article Highlights

* Reprocessing spent fuel does not eliminate the need for a geological repository — or ease the challenge of identifying suitable sites.

* Finding sites for geological repositories has proven to be very difficult, and the only successes have come through voluntary, consultative processes.

* Dry-cask storage is becoming more common, and some countries might store spent fuel in casks for 100 years or more as an interim strategy.

Continue: Bulletin of Atomic Scientists

Japan scraps plan for 14 new nuclear plants

Japan PM on Fukushima: “Taking this as a lesson, we will lead the world in clean energy such as solar and biomass”

Prime Minister Naoto Kan said Tuesday that Japan would abandon plans to build new nuclear reactors, saying his country needed to “start from scratch” in creating a new energy policy….

Mr. Kan said Japan would retain nuclear and fossil fuels as energy sources, but vowed to add two new pillars to Japan’s energy policy: renewable energy and conservation.

Continue: Climate Progress

A population density map to help provide context for the nuclear power plant proximity analysis

nature great beyond nuclear power population density

How many people live within certain distances of each of the world’s nuclear power plants.

High-resolution global population density Google Earth map for 2010 created by the NASA Socioeconomic Data and Applications Center operated by Columbia University’s Center for International Earth Science Information Network (CIESIN). The underlying population data is the same as we used in our previous analysis to estimate the size of population in the proximity of nuclear plants.

Posted by Declan Butler on April 22, 2011

Continue: Nature

Crowd-sourced realtime radiation monitoring in Japan

pachube crowd radiation japan real time

There are now hundreds of radiation-related feeds from Japan on Pachube, monitoring conditions in realtime and underpinning more than half a dozen incredibly valuable applications built by people around the world. They combine ‘official’ data, ‘unofficial’ official data, and, most importantly to us, realtime networked geiger counter measurements contributed by concerned citizens.

Continue: Pachube

pachube

The world’s nuclear reactors as you’ve never seen them..

nature beyond world nuc reactors

Interactive

The nuclear accident at the Fukushima Daichii power plant will have consequences for the future of nuclear power in Japan and elsewhere. To get a better idea of the world’s current tally of nuclear reactors, NATURE have created a map of the world’s nuclear power plants and reactors using Google Earth – the maps are based on a database kindly supplied to me by staff at the International Atomic Energy Agency’s (IAEA)

Continue: Nature

The world’s nuclear reactors as you’ve never seen them…

nature beyond world nuc reactors

Interactive

The nuclear accident at the Fukushima Daichii power plant will have consequences for the future of nuclear power in Japan and elsewhere. To get a better idea of the world’s current tally of nuclear reactors, NATUREs “Great Beyond” have created a map of the world’s nuclear power plants and reactors using Google Earth – the maps are based on a database supplied by staff at the International Atomic Energy Agency’s (IAEA)

Continue: Nature The Great Beyond

Factbox: How much radiation is dangerous?

(Reuters): Here are some facts about radiation and the health dangers it poses-

Below are different levels of massive radiation exposure in a single dose – all measured in millisieverts — and their likely effects on humans, as published by the U.S. Environmental Protection Agency:

– 50-100: changes in blood chemistry

– 500: nausea, within hours

– 700: vomiting

– 750: hair loss, within 2-3 weeks

– 900: diarrhea

– 1,000: hemorrhage

– 4,000: possible death within 2 months, if no treatment

– 10,000: destruction of intestinal lining, internal bleeding and death within 1-2 weeks

– 20,000: damage to the central nervous system and loss of consciousness within minutes, and death within hours or days

Sources: Taiwan Atomic Energy Council, World Nuclear Association, US Department of Transportation, US Environmental Protection Agency

Continue: Reuters

Global map of nuclear power stations

nuclear_risk_map_map maplecroft

The recent Fukushima Daiichi crisis has reopened the nuclear debate. Risk analysis and mapping firm Maplecroft has produced a global map of nuclear power stations, revealing the vulnerability to seismic, tsunami and storm surge risk of these facilities and the levels of energy security risks that countries face in the long-term; which begs the question about their need to rely on nuclear energy as an alternative to conventional sources.

Continue: Maplecroft

nuclear_risk_map_map maplecroft

Onkalo: Final disposal of spent nuclear fuel

Into Eternity The Movie - Opens February 2 in the US_1300963139275

Every day, the world over, large amounts of high-level radioactive waste cre- ated by nuclear power plants is placed in interim storage, which is vulnerable to natural disasters, man-made disasters, and to societal changes. In Finland the world’s first permanent repository is being hewn out of solid rock – a huge system of underground tunnels – that must last 100,000 years as this is how long the waste remains hazardous.

Continue: Into Eternity The Movie

More:

ONKALO

ONKALO is Underground Rock Characterisation Facility being built for rock characterisation for the final disposal of spent nuclear fuel. Read more. Posiva Finland

Olkiluoto Nuclear Power Plant

wikipedia-the-free-encyclopedia_1250533419921

more on this topic

High radiation levels detected 20 km. from plant

NHK Wednesday, March 16, 2011 17:58 +0900 (JST)

Japan’s science ministry has observed radiation levels of up to 0.33 millisieverts per hour in areas about 20 kilometers northwest of the quake-damaged Fukushima Daiichi nuclear power plant.

Experts say exposure to such radiation for 3 hours would result in absorption of 1 millisievert, or the maximum considered safe for 1 year.

Continue: NHK

80,000 mobilized for rescue works, death toll nears 3,700

TOKYO, March 16, Kyodo

Rescue operations continued Wednesday following the catastrophic earthquake in Japan, with 80,000 Self-Defense Forces personnel and police officers mobilized in the devastated areas, where temperatures have dropped to midwinter levels.

The National Police Agency said it has confirmed 3,676 deaths in 12 prefectures, while 7,843 people remained unaccounted for in six prefectures as of 12:30 p.m.

Continue

Last Defense at Troubled Reactors: 50 Japanese Workers

They are the faceless 50, the unnamed operators who stayed behind. They have volunteered, or been assigned, to pump seawater on dangerously exposed nuclear fuel, already thought to be partly melting and spewing radioactive material, to prevent full meltdowns that could throw thousands of tons of radioactive dust high into the air and imperil millions of their compatriots.

Continue: NY Times