Bomb - grade uranium is enriched to above 90 percent and most
power reactors use uranium that is enriched up to 5 percent.
Not exact matches
Among the moon's vast riches: gold, cobalt, iron, palladium, platinum, tungsten and helium - 3, a gas that can be
used in future fusion
reactors to provide nuclear
power without radioactive waste.
The team's design
uses solar energy (captured with photovoltaic panels) to
power an electrochemical
reactor that converts water and human waste into fertilizer and hydrogen.
A number of coal - and oil - fired
power plants will likely be retired, and while Virginia's four existing nuclear units will remain in
use, plans for a fifth
reactor remain shelved, for now.
To
use MOX fuel rods, civilian
power plants would have to modify their
reactors, requiring lengthy relicensing by the Nuclear Regulatory Commission.
The department controls the radioactive materials - plutonium, uranium and tritium -
used in Americas nuclear weapons and in the
reactors of nuclear -
powered aircraft carriers and submarines.
NASA's prototype
power system
uses a uranium - 235
reactor core described as roughly the size of a paper towel roll.
However, the
power plant needs a permit from New York State to
use Hudson River water to cool its
reactor cores.
Together, the two
reactors supply about one - fourth of the
power used in New York City and Westchester County.
Each day, some two billion gallons of water are pumped from Long Island Sound into the Millstone
Power Station in Waterford, Conn. — that state's only nuclear power plant — and used to help cool systems and support the station's two operating reac
Power Station in Waterford, Conn. — that state's only nuclear
power plant — and used to help cool systems and support the station's two operating reac
power plant — and
used to help cool systems and support the station's two operating
reactors.
Nuclear
power plant operators would purchase and store portable equipment that could be
used to provide additional means of cooling the
reactor, a plan that could be in place as soon as 2015.
This is a fluidized bed
reactor, an energy - generation technology that has been
used for decades to
power paper mills and waste - treatment plants but that had never before been installed in an ethanol plant.
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.
It also assumes that 45 new nuclear
power plants could be built by 2030,
using existing
reactor sites, adding 64 gigawatts of new capacity.
Nuclear
power's foes have also kept up an attack on the
use of DOE loan guarantees for new
reactors contending that the risks to taxpayers were too great unless the credit subsidy requirement was pushed far up.
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.
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.
Alabama also objected, worried about another species: nuclear
power plants, which
use enormous quantities of water, usually drawn from rivers and lakes, to cool their big
reactors.
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.
They see a market in servicing large electric utilities that want to incrementally expand their generation capacity, developing countries that can not afford or make good
use of traditional
reactors, and off - grid and hard - to -
power sites.
The aim of ITER is to show that, in theory, nuclei of deuterium and tritium (isotopes of hydrogen) can be fused in a searingly hot plasma at the heart of the
reactor, thereby releasing large quantities of heat that could be
used to generate
power.
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.
The researchers plan to test their
reactors directly in the coal - fired
power plant of EnBW in Karlsruhe and to
use the exhaust gases produced there.
Five nuclear
power stations in Britain
use first - generation Magnox
reactors, with steel pressure vessels.
During that time, ITER's designers anticipate that the
reactor will put out 500 megawatts of
power while
using only 50 megawatts, a tenfold energy gain.
Nuclear
reactors are routinely
used by the U.S. Navy to
power its aircraft carriers and submarines.
The concept of an ADS is almost as old as nuclear
power itself: American physicist Ernest O. Lawrence, the inventor of the cyclotron accelerator, suggested the
use of particle beams in conjunction with a
reactor during the 1950s.
Poll proposes nuclear -
powered airplanes
using reactors with engines on the wings.
Like older models, they will
use uranium fission to heat water and drive a turbine, but these
reactors will be smaller, simpler to build, and each will add more than 1100 megawatts of capacity to the region's
power grid when they come online in 2016 or 2017 — without emitting carbon dioxide.
A fusion
power demonstration
reactor to be built in the 2030s in collaboration with the DoE's Princeton Plasma Physics Lab, represents a step toward commercial
use
Thermal simulators will be
used for the balance of the engines to verify the
reactor's
power output, Mason said in an interview with Space.com.
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.
Later, the
power will be
used to top up water in the
reactor vessels.
The fuel bundles are
used in the PRISM
reactor to produce
power, after which they become virtually unusable for proliferation purposes.
Canadian Nuclear Laboratories is a leader in sciences that are foundational to
reactor safety — including the ability to predict the lifetimes of critical components
used in nuclear
power stations around the world, especially those in CANDU
reactors.
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 design.
The research
reactor is not
used for developing or sampling nuclear
power technology.
ZED - 2 has been
used to confirm the
reactor physics design of all Canada's
power reactors.
ZED - 2 is also
used for the development, characterization, and calibration of in - core and ex-core flux detectors for
use in
power reactors.
There are more than 440 operating nuclear
power reactors worldwide, most of which
use enriched uranium for fuel, including 99
reactors in the United States.
GE Hitachi Nuclear Energy is developing the
Power Reactor Innovative Small Modular (PRISM)
reactor, which
uses liquid sodium as a coolant.
«Unlike today's nuclear
reactor, the IFR [integral fast
reactor] can generate unlimited amounts of inexpensive clean
power for hundreds of thousands of years... It provides an excellent solution for what to do with our nuclear waste because it can
use our existing nuclear waste for fuel and it is significantly more proliferation - resistant than other methods of dealing with nuclear waste... The IFR is also inherently safe.
One of the most vexing issues facing the nuclear
power industry today is what to do with the spent nuclear fuel after it has been
used in a nuclear
reactor.
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.
A fourth generation
reactor designed by GEH, PRISM incorporates the groundbreaking features of the Argonne Laboratory's project, representing a technological leap that could
power the UK or similar countries for hundreds of years with
used nuclear fuel that is already on hand.
The
use of small modular
reactors (SMRs) for remote communities and mines in northern Ontario will be studied following the signing of a memorandum of understanding (MoU) between Bruce
Power, Laurentian University and Mirarco Mining Innovation.
Molten salt
reactors use fuel dissolved in a molten fluoride or chloride salt which functions as both the fuel (producing the heat) and the coolant (transporting the heat away and ultimately to the
power plant).
If the material from one such
reactor (of a size of practical interest for
power production) were diverted, it might be a matter of some two or three years before it could be
used to make a small number of atomic weapons.
Due to its properties, it is extensively
used in nuclear
power reactors and in the production of nuclear weapons.
According to a report on Fredricksburg.com, It could be another six months before Dominion
power company makes a final decision on the design it will use for a proposed third reactor at North Anna Power Sta
power company makes a final decision on the design it will
use for a proposed third
reactor at North Anna
Power Sta
Power Station.