Sentences with phrase «power reactor fuel»

Through a multi-step process in Russia, the bomb - grade uranium material was converted into a different chemical form and then diluted into low enriched uranium suitable for use in fabricating commercial nuclear power reactor fuel.

Not exact matches

To use MOX fuel rods, civilian power plants would have to modify their reactors, requiring lengthy relicensing by the Nuclear Regulatory Commission.

GWE combine specialized know - how in generating biogas with our extensive range of anaerobic reactors, and in supply and installation of biogas re-use and handling systems for fossil fuel replacement or power generation.

This is done not only by supplying renewable energy from the closed anaerobic reactor, thus reducing or even eliminating reliance on fossil fuels, but also by replacing traditional, open, methane - producing lagoons, and by replacing power - consuming, sludge - producing aerobic WWTPs.

Russ» team is charged with the design of the advanced fuel assemblies and reactor cores for the power stations that provide about 7 % of U.S. electricity capacity and more internationally.

SCRIBA, N.Y. - Entergy Corp. plans to shut down its money - losing FitzPatrick nuclear power plant in Oswego County after the reactor runs out of fuel next year.

Indian Point's nuclear power is neither clean nor green, and the process needed to create fuel from uranium for its reactors is energy - intensive and creates greenhouse gases such as carbon dioxide.

However, at least two of the state's nuclear reactors are in danger of closing within the next few years and would significantly increase air pollution because they would be replaced by fossil - fuel burning power plants in the near future.

Officials at the FitzPatrick Nuclear Power Plant near Oswego are investigating why fuel rods in the reactor's core are leaking radiation and while not considered an emergency, it could potentially spread contaminated water to other parts of the plant.

While nuclear reactors do not emit carbon dioxide at the point of power generation, the nuclear fuel chain is responsible for carbon emissions during mining, milling, enriching, construction, transportation, and decommissioning.

According to a study by The Brattle Group, funded by Exelon and other nuclear supporters, the three reactors in Oswego County and another in Wayne County eliminate nearly 16 million tons of carbon dioxide a year that would otherwise be emitted by fossil fuel power plants.

Of all the terrible news from the crippled Fukushima Daiichi nuclear power plant, reports about the spent fuel storage pool for reactor # 4 may be among the most disconcerting for scientists.

Some of the new nuclear science research programs, including the one at MIT, are studying new reactor designs and fuel cycles that scientists (and policy - makers) hope will make nuclear plants safer and cheaper to operate, and produce waste materials with smaller volume, shorter half - lives, and less appeal to terrorists and other would - be nuclear powers.

By harnessing energy from the sun — «this handy fusion reactor in the sky,» he called it last night — getting enough renewable energy on the power grid and smoothing out energy generation and use between peak and off - peak hours, the nation and planet can shift away from fossil fuels» dominance as a power source, he told the crowd.

The evaluations must ensure that backup cooling systems for reactors and spent fuel pools can operate for a long time in «blackout» conditions, where on - site and off - site power is cut off.

Plutonium has a bad public image in the US, and many power companies are likely to face enormous pressure not to burn MOX fuel in their reactors.

After all, the spent fuel pools that may have been exposed by the power plant explosions contain more than 200 metric tons of used uranium fuel rods that have been cooling for weeks, months or even years — and smoke or steam continues to billow from the exposed spent fuel pool of reactor No. 3.

If the fuel rods are no longer being cooled — as has happened at all three reactors at the Fukushima Daiichi power plant operating at the time of the earthquake — then the zirconium cladding will swell and crack, releasing the uranium fuel pellets and fission byproducts, such as radioactive cesium and iodine, among others.

After about three years of service, when technicians typically remove used fuel from one of today's reactors because of radiation - related degradation and the depletion of the uranium 235, plutonium is contributing more than half the power the plant generates.

Meeting coal demand in Japan Indonesian coal is also expected to help fuel a surge in fossil power generation in Japan after that country shuttered its nuclear plants in the wake of the Fukushima Daiichi nuclear reactor meltdown in 2011.

That helps explain why such a large earthquake was unexpected in the region, resulting in catastrophic consequences that included more than 24,000 people dead or missing and fuel meltdowns in three reactors at the Fukushima Daiichi nuclear power plant on the coast.

The earthquake and tsunami knocked out outside power to the reactor complex and the tidal wave also disabled backup diesel generators, whose fuel tanks were swept away.

Tokyo Electric Power Company now says that the nuclear fuel rods fully melted down in Fukushima reactor number one and burned a hole in the thick steel vessel surrounding them.

When auxiliary batteries were exhausted, the plant was without power to continue cooling reactor cores and spent fuel pools.

Thermal fluids are used to alleviate wear on components and tools and for machining operations like stamping and drilling, medical therapy and diagnosis, biopharmaceuticals, air conditioning, fuel cells, power transmission systems, solar cells, micro - and nanoelectronic mechanical systems and cooling systems for everything from engines to nuclear reactors.

Other issues for a power reactor will be developing a reaction chamber that can withstand intense neutron bombardment for years on end and discovering a way to produce the fuel capsules quickly and cheaply (a reactor may consume a million or more capsules every day).

Tokyo Electric Power, which operates the plant, estimates that the fuel in at least one of the reactors has completely melted down.

In fact, during that period more than half the uranium fuel that powered the more than 100 reactors in the U.S. came from such reprocessed nuclear weapons.

These reactors could face extraordinary challenges, such as the recent twin blows of a magnitude 9.0 earthquake, which knocked out connections to the local power grid, followed by a wall of water that destroyed the fuel tanks for backup diesel generators and flooded critical electrical equipment, crippling the boiling - water reactors at Fukushima Daiichi in Japan.

That hydrogen buildup was the result of hot steam coming into contact with overheated nuclear fuel rods covered by a cladding of zirconium alloy, or «zircaloy» — the material used as fuel - rod cladding in all water - cooled nuclear reactors, which constitute more than 90 percent of the world's power reactors.

Salehi claims their deaths emboldened, rather than deterred, Iran's nuclear establishment, and insists that Iran's enrichment program was intended only to produce fuel for civilian power reactors.

On September 15, the U.S. Nuclear Regulatory Commission affirmed its expert opinion that spent nuclear fuel could be safely stored on nuclear power plant grounds — whether in pools or dry casks — for «at least 60 years beyond the licensed life of any reactor.»

They must also extend plants» capabilities to protect reactors and spent fuel pools in an extended blackout of primary and backup electric power.

(Tokyo Electric Power Company, the plant operator, later suggested that the hydrogen that had exploded had come not from exposed spent fuel but from the melted reactor core in the adjacent Unit 3.)

If the safer thorium - fuelled molten salt reactor developed in the late 1960s had been adopted for electric power, no one would have heard of Three Mile Island, Chernobyl or Fukushima Daiichi.

A study projects 130 future cancer deaths from the meltdowns at the reactors in Fukushima last year, but does that suggest nuclear power is safer than fossil fuel alternatives?

More exotic designs remain on the horizon, such as reactors powered by thorium fuel, but the AP1000 and other more conventional designs are important for one simple reason: they are being built.

The reactor, operating at 85 megawatts of power, is currently in its 455th fuel cycle since the first cycle in 1966.

Joint projects with Russian nuclear scientists began to ebb soon after President Vladimir Putin came to power in 2000, and reached a nadir last October when Russia suspended an agreement with the United States on nuclear R&D cooperation and terminated another on retooling Russian research reactors to no longer run on weapons - grade uranium fuel.

American researchers have shown that prospective magnetic fusion power systems would pose a much lower risk of being used for the production of weapon — usable materials than nuclear fission reactors and their associated fuel cycle.

The fuel bundles are used in the PRISM reactor to produce power, after which they become virtually unusable for proliferation purposes.

The NRC has amended FirstEnergy Nuclear Operating Company (FENOC)'s operating licence for Perry to include revisions to the safety limit minimum critical power ratio - a measure of heat limits within the reactor core - enabling the unit to use Global Nuclear Fuel's GNF2 fuel desFuel's GNF2 fuel desfuel design.

The NuScale Power ModulesTM reactor pool and the spent fuel pool are located at or below nominal plant grade level, while the hoisting and handling equipment is located above grade.

RIAR's reactors provide a full range of capabilities to test fuel and materials of all types of existing power reactors as well as advanced and innovative ones: water - cooled thermal reactors, including those with boiling and pressurized water, gas - cooled, fast and other types of reactors.

A small nuclear fuel inventory, since each 50 MWe (gross) NuScale Power Module houses approximately 5 % of the nuclear fuel of a conventional 1,000 MWe nuclear reactor.

It is then usable as fuel for commercial nuclear power reactors.

The product cylinders are then loaded into sturdy protective containers for shipment to a nuclear fuel fabricator where the enriched uranium is converted into fuel assemblies for nuclear power reactors.

The small footprint of the NuScale Power Modules plant and the low profile of the reactor building due to below - grade placement of the NuScale Power Modules and spent fuel pool offer a greatly reduced target size relative to traditional LWRs.

But the fuel assemblies that power a commercial nuclear reactor at an electric utility generally need uranium with a 4 % — 5 % concentration of U235.

The NuScale Power Module ™ and power plant design enhances the intrinsic physical protection and security of the plant through the elegantly simple design, elimination of large break loss of coolant accidents, and full reliance on passive systems to cool the reactors and spent fuel for extended periods without the need for AC power, DC power or additional water following an upset condiPower Module ™ and power plant design enhances the intrinsic physical protection and security of the plant through the elegantly simple design, elimination of large break loss of coolant accidents, and full reliance on passive systems to cool the reactors and spent fuel for extended periods without the need for AC power, DC power or additional water following an upset condipower plant design enhances the intrinsic physical protection and security of the plant through the elegantly simple design, elimination of large break loss of coolant accidents, and full reliance on passive systems to cool the reactors and spent fuel for extended periods without the need for AC power, DC power or additional water following an upset condipower, DC power or additional water following an upset condipower or additional water following an upset condition.