Sentences with phrase «reactor fuel remains»

Used reactor fuel remains extremely hot for hundreds of years and radioactive for thousands of years.

Not exact matches

If fuel rods remain uncovered, they may begin to melt, and hot, radioactive fuel can pool at the bottom of the vessel containing the reactor.

And a fire at a pool storing spent fuel rods at dormant reactor No. 4 is posing additional hazards to the few workers remaining at the site.

What remains unclear is how much of the nuclear fuel at any of the three Fukushima Daiichi reactors has melted down, though TEPCO has announced that the fuel is likely damaged in all three reactors that were operating there at the time of the earthquake.

The problem of spent fuel storage Nuclear reactor operators must store spent fuel removed from reactor cores for several years at least, in large pools at reactor sites until the remaining heat from the uranium fuel cools sufficiently.

In the new version, the wave does not move, but remains stationary, and the fuel material is shuffled in and out of the breed and burn zones within the reactor, TerraPower officials say.

While some environmental leaders now cautiously support development of more nuclear reactors (which are free of fossil fuels) to help stave off climate change, others remain concerned that the risks to human health and the environment are still too high to go down that road.

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.

While we are disappointed with DOE's decision to exclude Holtec from the award, we remain confident that our reactor, the SMR - 160, has the greatest potential to triumph in a global marketplace because it is designed to meet the highest expectations of safety and is uniquely engineered to compete economically with other sources of alternative energy in the evolving era of cheap fossil fuels.

PRISM is a high energy neutron (fast) reactor design which uses a series of proven, safe and mature technologies to provide an innovative solution to disposition plutonium stockpiles and harness the remaining energy potential of used nuclear fuel and surplus plutonium.

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.

Almost immediately, the site's personnel became alarmed over the storage pools and shifted the remaining cooling capacity to prevent the overheating of spent fuel at reactor No. 2.

The reactor's steel - clad metal - alloy fuel would remain in place for the design's 30 - year operating lifetime.