Sentences with phrase «of fast reactors in»

However, it is very important for Japan - a resource - poor country committed to being a global leader in science and technology - to continue the technological development of fast reactors in anticipation of the future.»

Not exact matches

The new study led by Satoshi Chiba at Tokyo Tech shows that effective transmutation of LLFPs can be achieved in fast spectrum reactors without the need for isotope separation.

A test facility near Lynchburg, Va. is up and running to ensure that what looks good on paper will also work in practice and B&W already has one potential customer in the U.S. — the TVA — expressing an interest in building as many as six of the small modular reactors at its Clinch River site, former home of a failed effort to build a fast breeder reactor in the 1970s.

Fission of uranium and plutonium is not the only reaction that takes place in the core of a fast - breeder reactor.

If we were to begin today, the first of the fast reactors might come online in about 15 years.

The annual waste output from a fast reactor with the same electrical capacity, in contrast, is a little more than a single ton of fission products, plus trace amounts of transuranics.

Because the fast - reactor waste would contain no significant quantity of long - lived transuranics, its radiation would decay to the level of the ore from which it came in several hundred years, rather than tens of thousands.

An Outdated Strategy Early nuclear engineers expected that the plutonium in the spent fuel of thermal reactors would be removed and then used in fast - neutron reactors, called fast breeders because they were designed to produce more plutonium than they consume.

The Tennessee Valley Authority hopes to catalyze development of such reactors by installing one at its Clinch River site in Tennessee, former home of the U.S.'s failed attempt to build its own commercial fast reactor.

Conceived in the 1970s, Monju was once at the leading edge of research into fast fission reactors, which have always been controversial because they burn plutonium, an ingredient in bombs.

But experimental fast reactors in the United States, the United Kingdom, Germany, and France have all been shut down because of high costs and concerns over handling plutonium.

All this, he said, was done in the face of the advice of the nuclear and energy supply industries that fast breeder reactors should be backed and that they would be prepared to make a contribution to the funds, given the government's commitment.

Japan has pursued fast - breeder technology, through which a reactor can produce more plutonium than it burns in hopes of cutting or eliminating imports of nuclear fuel.

Rather than the pellets of uranium oxide used in other fast reactors and conventional reactors as fuel, GE would fabricate metal alloy fuels, with the plutonium or uranium mixed with zirconium metal.

The U.K. is considering a plan to build two of General Electric's PRISM fast reactors, the latest in a series of fast - reactor designs that for several decades have attempted with mixed success to handle plutonium and other radioactive waste from nuclear power.

«The possibility of cooperative work with Japan in the area of fast reactors is something that is attractive to us precisely because they have Monju,» Daniel Poneman, the U.S. deputy secretary of energy, said at a press conference today.

One solution under consideration is to recycle the plutonium yet further — by using it as fuel in a pair of new, so - called «fast» reactors.

Poneman said Monju came up in the discussions because of the possibility of using fast reactors to burn plutonium and the long - lived isotopes of elements such as neptunium and americium that account for much of the radiotoxicity of nuclear waste.

More than 76 percent of French reactors were built in less than seven years, while less than 35 percent of American reactors were built that fast.

Nuclear power experts from Japan and the United States met in Tokyo today, and one surprising topic of conversation was the host country's Monju experimental fast reactor.

One attractive feature of fast reactors is that they can produce more fuel than they consume, avoiding the issue of the limited supplies of the uranium used in conventional nuclear reactors.

«At one time or another, [fast reactors] were a priority program in the U.S., Japan, France, Germany, Italy and Russia,» notes physicist Thomas Cochran of the Natural Resources Defense Council, an environmental group.

Novel design The trouble with fast reactors has largely been related to what's used to cool them — liquid sodium in the case of GE's PRISM and many others.

The Department of Atomic Energy will grow by a healthy 21 %, to $ 2.5 billion, with $ 61 million for the Indira Gandhi Centre for Atomic Research in Kalpakkam, possibly for development of a new fuel for the fast breeder reactor.

The research would culminate in the commissioning of the first European fast reactor (EFR) early next century.

What's more, the ratio of ruthenium - 106 to the faster - decaying isotope ruthenium - 103, detected in smaller amounts last autumn, reveals that the fuel must have been removed from its reactor only a year or two earlier.

The world's first commercial - size fast reactor, the BN - 600 near Ekaterinburg in the central Urals, began operating in 1980 on a fuel of enriched uranium.

«The technology with the potential to solve these problems (of climate change, future energy shortfalls and cleaning up nuclear waste) is the fast reactor, ideally the integral fast reactor (IFR)... IFRs, once loaded with nuclear waste, can, in principle, keep recycling it until only a small fraction remains, producing energy as they do so.»

PRISM is a sodium - cooled, high - energy neutron (fast) reactor design that uses a series of proven, safe and mature technologies developed in the U.S. and abroad.

It is profligate in the extreme to keep pouring money into the development of fast breeder reactors.

The number of neutrons per fission changes in fast reactors as well.

As an added bonus, many of the very long - lived nuclides larger than Uranium (Neptunium, Plutonium, Americium, Curium, etc.) have the same trend, and fast reactors can split and destroy these actinides as fuel rather than let them accumulate as in thermal reactors.

Fast reactors are a class of advanced nuclear reactors that have some key advantages over traditional reactors in safety, sustainability, and waste.

In reality, it's very difficult to keep the neutrons moving that quickly so fast reactors still need a bit of enriched uranium to operate, but U-238 is fissioned to much more of a degree than in thermal reactorIn reality, it's very difficult to keep the neutrons moving that quickly so fast reactors still need a bit of enriched uranium to operate, but U-238 is fissioned to much more of a degree than in thermal reactorin thermal reactors.

Also, one of the only ways to really destroy nuclear waste is to burn it in fast reactors.

In order to increase the number of thermal neutrons, thermal neutron reactor designers choose materials which slow down the fast neutrons in order to turn them into useful thermal neutronIn order to increase the number of thermal neutrons, thermal neutron reactor designers choose materials which slow down the fast neutrons in order to turn them into useful thermal neutronin order to turn them into useful thermal neutrons.

PRISM's coolant, liquid sodium, allows the neutrons in the reactor to remain at a higher energy (or speed, hence the common reference of «fast reactor»).

Thus, liquid sodium is the coolant of choice in fast reactors because it can effectively transfer heat away from the nuclear fuel, while at the same time maximizing the number of fast neutrons.

«GEH has broad engineering experience, deep technical capability and significant investment in its sodium fast reactor technology program that builds on a 60 - year history as an original equipment manufacturer of more than 60 boiling water reactors worldwide,» said Jay Wileman, President and CEO, GEH.

JAEA chairman Toshio Kodama said, «In addition to effectively utilizing the results of our research and development - including the results obtained through the development of Monju so far for future fast reactor development - we will contribute to the development of state - of - the - art fast reactors in Japan by making maximum use of the human resources and equipment, etc of this organization according to the established «fast reactor development policy».&raquIn addition to effectively utilizing the results of our research and development - including the results obtained through the development of Monju so far for future fast reactor development - we will contribute to the development of state - of - the - art fast reactors in Japan by making maximum use of the human resources and equipment, etc of this organization according to the established «fast reactor development policy».&raquin Japan by making maximum use of the human resources and equipment, etc of this organization according to the established «fast reactor development policy».»

«GEH has broad engineering experience, deep technical capability and significant investment in its sodium fast reactor technology program that builds on a 60 - year history as an original equipment manufacturer of more than 60 boiling water reactors worldwide,» said the company's president and CEO Jay Wileman.

«ARC Nuclear has a heritage of sodium fast reactor experience that includes key senior scientists and engineers from the EBR - II prototype program — technical leaders involved in developing and demonstrating the fast reactor foundational technology within the U.S. Department of Energy,» said Don Wolf, Chairman and CEO, ARC Nuclear.

«This time» refers to the long - awaited opportunity to deliver the PRISM integral fast reactor that has been in development since the early - 1980s — an opportunity that last month saw Loewen visit the UK to give evidence to the Energy and Climate Change Select Committee of MPs.

The government noted Japan's basic energy policy - decided by the Cabinet in April 2014 - aims to promote the nuclear fuel cycle, including the promotion of fast reactor development.

Each dollar spent on a new reactor buys about two to ten times less carbon savings and is 20 to 40 times slower, than spending that dollar on the cheaper, faster, safer solutions that make nuclear power unnecessary and uneconomic: efficient use of electricity, making heat and power together in factories or buildings («cogeneration»), and renewable energy.

In February 2010, General Atomics (GA) announced a modified version of its gas turbine modular helium reactor (GT - MHR) as a fast neutron reactor — the Energy Multiplier Module (EM2).

Fast neutron reactors are typically fuelled using a mixture of oxides of uranium and plutonium, and can vastly increase the efficiency of the nuclear fuel cycle by using the uranium - 238 recovered from recycling nuclear fuel after use in conventional nuclear power reactors.

Fast reactors have distinct advantages in siting of plants, product transport and management of waste.»

And nuclear power is just as sustainable as any other power source — even if we only use conventional nuclear fast reactor designs, there is enough uranium in the oceans and on land (recoverable at prices that allow the fuel costs of fast reactors to remain the same as today — which is trivial) to last for 5 billlion years, the expected time remaining fo our sun.

The leading contender, in my opinion, is the General Atomics modified version of its gas turbine modular helium reactor (GT - MHR) as a fast neutron reactor — the Energy Multiplier Module (EM2).