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Thursday, December 11, 2008

Developments on nuclear energy and nuclear power

Nuclear power is any nuclear technology designed to extract usable energy from atomic nuclei via controlled nuclear reactions. The most common method today is through nuclear fission, though other methods include nuclear fusion and radioactive decay. All utility-scale reactors heat water to produce steam, which is then converted into mechanical work for the purpose of generating electricity or propulsion. Today, more than 15% of the world's electricity comes from nuclear power, more than 150 nuclear-powered naval vessels have been built, and a few radioisotope rockets have been produced.
Recent developments on nuclear energy and nuclear power :
  • Nuclear Power Not Efficient Enough To Replace Fossil Fuels, Study Finds: Nuclear energy must increase by more than 10% each year from 2010 to 2050 to meet all future energy demands and replace fossil fuels, but this is an unsustainable prospect. According to a new report such a large growth rate will require a major improvement in nuclear power efficiency otherwise each new power plant will simply cannibalize the energy produced by earlier nuclear power plants.[1]
  • Questioning Nuclear Power's Ability To Forestall Global Warming: Rising energy and environmental costs may prevent nuclear power from being a sustainable alternative energy source in the fight against global warming, according to a new study.[2]
  • Nuclear Power: Most Successful Fuel Performance Ever For US Advanced Gas Reactor Fuel: Advanced gas reactors offer more efficient operation, less waste disposal and other benefits over water-cooled reactor designs used in U.S. nuclear power plants. But creating fuel that burns efficiently and reliably in the higher temperatures of advanced gas reactors has been a challenge -- until now. Fuel fabricated at Oak Ridge National Laboratory, in cooperation with Idaho National Laboratory and the Babcock & Wilcox Company, has demonstrated the most successful performance ever for U.S. advanced gas reactor fuel.[3]
  • Historic Soviet Nuclear Test Site Offers Insights For Today's Nuclear Monitoring: Newly published data from the Semipalatinsk Nuclear Test Site, the Soviet Union's primary nuclear weapons testing ground during the Cold War, can help today's atomic detectives fine-tune their monitoring of nuclear explosions around the world, according to new research. The treasure trove of data from Semipalatinsk are especially important in light of the fact that only three nuclear tests -- back-to-back tests in India and Pakistan in 1998 and a 2006 test in North Korea -- have been conducted since the Comprehensive Nuclear Test Ban Treaty of 1996.[4]
  • Measuring 'Inaudible' Sounds To Detect Illegal Nuclear Tests, And Analyze Atmosphere: By measuring 'inaudible' sounds, events like illegal nuclear tests can be detected. This 'infrasound' can also help us understand more about the upper atmosphere, according to new research.[5]
  • Nuclear Fuel Performance Milestone Achieved: The research to improve the performance of coated-particle nuclear fuel met an important milestone by reaching a burnup of 9 percent without any fuel failure. The research is key in supporting reactor licensing and operation for high-temperature reactors such as the Next Generation Nuclear Plant and similar reactors envisioned for subsequent commercial energy production.[6]
  • Nuclear Shortcuts Exposed In U.S. Nuclear Fuel Facility: US regulators have ignored expert safety advice in an attempt to cut corners and fast track the completion of a $4 billion nuclear fuel facility currently under construction near Aiken, South Carolina. The accusation is reported in The Chemical Engineer magazine, published by the Institution of Chemical Engineers.[7]

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