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Not quite a two-seater hybrid electric, but ORNL's new nuclear fuel promises to boost efficiency by as much as 900%.

U.S. Nuclear reactors are not known for their fuel efficiency. At a mere three to four percent burn-up, much of the uranium fuel is wasted and current reactors produce large amounts of unsightly nuclear waste. Advanced gas reactors may offer a better choice for the aging U.S. nuclear power posse.

Working together with the Idaho National Laboratory (INL) and the Babcock & Wilcox Company, Oak Ridge National Laboratory (ORNL), with funding from the Department of Energy's Office of Nuclear Science, has produced a new fuel for the high temperatures of advanced gas reactors. In tests conducted at the Advanced Test Reactor at INL, the fuel reached a nine percent burn-up, a near three-fold efficiency gain from traditional water-cooled nuclear plant fuel and halfway to the targeted 16 to 18 percent.

The fuel, produced in the ORNL Materials Science and Technology Division, is made up of thousands of tiny carbon and silicon carbide coated spheres of uranium, which are compressed into fuel sticks and loaded into a graphite form.

With growing concerns about nuclear reactor waste products, skeptical outlooks for the future of nuclear power and foreign companies selling mini-plants to U.S. customers, a new, more efficient fuel made in America is a ray of hope for U.S. nuclear power advocates. Though it will possibly never be without its own pollution problems, further refinement and research into fission reactors may yield a very efficient and comparatively clean energy generation model.



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RE: Nuclear waste is unneccessary
By aftlizard on 4/15/2008 9:45:52 AM , Rating: 5
Reprocessing isn't even needed. Breeder reactors create their own fuel. On top of that the waste products can be reprocessed into other needs such as medical products. There will still be waste that must be contained and disposed of but we need to do something and IMO Nuclear Energy is the best way to achieve energy independence for home energy and as you said it withstands the price pressures of the volatile fuel market.


RE: Nuclear waste is unneccessary
By masher2 (blog) on 4/15/2008 10:02:07 AM , Rating: 2
> "Reprocessing isn't even needed. Breeder reactors create their own fuel"

You still have to reprocess to get the bred fuel, however. And since you're doing that, most breeder programs go ahead and reprocess the original fuel elements as well.


By QuantumPion on 4/15/2008 10:24:29 AM , Rating: 5
There is a reactor prototype called the IFBR which has the capability to breed fuel and reprocess it at the plant itself. It uses a simple casting process to melt the fuel down, separate it, and reform it on-site.


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