Sentences with phrase «in thermal reactors»

In thermal reactors, Pu239 fissions as soon as it is created because the Pu239 fission rate is so much higher than the U238 absorption rate (which is what creates fissile material).

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 reactors.

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.

Structural materials inside fast reactors thus undergo higher radiation damage rates than those in thermal reactors.

Not exact matches

Irradiated fuel from Nuclear Electric's advanced gas cooled reactors was expected to be processed at Sellafield, in the thermal oxide reprocessing plant, which still needs government approval to begin operating.

Because the world's uranium supply is finite and the continued growth in the numbers of thermal reactors could exhaust the available low - cost uranium reserves in a few decades, it makes little sense to discard this spent fuel or the «tailings» left over from the enrichment process.

An Outdated Strategy Early nuclear engineers expected that the plutonium in the spent fuel of thermal reactors would be removed and then used in fast - neutron reactors,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.

As a proof - of - concept for the new antenna - reactor catalysts, Swearer, Halas and colleagues conducted acetylene conversion tests at LANP and found that the light - driven antenna - reactor catalysts produced a 40 - to - 1 ratio of ethylene to ethane, a significant improvement in selectivity over thermal catalysis.

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.

The reactor design concept is to have high thermal neutron flux density in a moderating trap in the core center.

NAC was responsible for the design, fabrication and delivery of specialized packaging containers and equipment to clean, canisterize, and stabilize (by vacuum drying and thermal conditioning) 8,000 spent fuel rods from the research reactor in Nyongbyon, North Korea.

This is why normal water is used as a coolant in most thermal neutron reactors.

These thermal neutron reactors typically use uranium - 235 as the main component in the nuclear fuel.

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.

The reactor is located at the National Solar ‑ Thermal Test Facility at Sandia National Laboratories in NM, and available for use with external collaborators.

Secondly, the smaller volume inside the containment allows us to draw a vacuum in this space, which provides effective thermal insulation to the reactor vessel.

CategoriesCSP News & AnalysisTagssolar fuels, solar furnace, solar in space, solar reactor, thermal solar chemistry, thermal solar on Mars, thermal solar on the Moon

Their paper, Fabrication and testing of CONTISOL: A new receiver - reactor for day and night solar thermochemistry was published in December, 2017, at Applied Thermal Engineering.

Latest examples include solar water splitting using ferrites at 100 kWth power level [3] and subsequent scaling up to 750 kWth at the Plataforma Solar de Almería (PSA); thermal dissociation of ZnO as part of the two - step ZnO / Zn cycle in a 140 kWth solar reactor at the MegaWatt Solar Furnace in Odeillo, France [4]; and steam gasification of low - grade coal and carbonaceous waste in a 150 kWth solar pilot plant at PSA [5].

The amount of uranium ore of high enough grade for use in thermal uranium based reactors is not so plentiful that it would last very long in worldwide use.

Copernican was acquired by Sundrop Fuels in 2008, and its solar - reactor technology is now at the heart of a 1.5 - megawatt thermal solar gasification demonstration facility in Colorado.

These future nuclear power systems will require advances in materials, reactor physics, as well as thermal - hydraulics to realize their full potential.