Sentences with phrase «fuel storage pool»

However, the spent fuel storage pool located inside the containment causes pressurisation inside the containment due to the water boiling out in the pool.

To make the reactor self - sufficient in case of any leakage, including a break in the main circulation pump, it is possible to use additionally the water from the spent fuel storage pool for at least 72 hrs (an extra inventory of about 800 m3).

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.

Response: The Fukushima accident happened when flooding of power plant safety systems caused by the tsunami prevented operation of pumps needed to cool the nuclear fuel within the reactor and the fuel storage pools, causing that irradiated fuel to overheat.

The source of the leaks can be any number of things, including corroded underground pipes, and leaks in the spent fuel storage pools.

Not exact matches

Entergy will also move a set yearly number of spent fuel rods from their dangerous storage pools to dry cask storage on site — a much safer solution for this radioactive material.

The real solution, according to Lochbaum and other experts, is to require spent fuel to be moved from pools to more permanent storage in massive concrete and steel casks after five years of cooling down.

«The entire spent fuel management system — on - site storage, consolidated long - term storage, geological disposal — is likely to be reevaluated in a new light because of the Fukushima storage pool experience,» the report says.

One was a measure prohibiting plant owners from densely packing spent - fuel pools, requiring them to expedite transfer of all spent fuel that has cooled in pools for at least five years to dry storage casks, which are inherently safer.

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 United States, much of the fuel units remained stored underwater in pools but some are removed for storage in large casks.

A report to Congress in 2006 by a National Research Council panel investigating terrorist threats to spent fuel storage concluded that «under some conditions,» if a pool were partially or completely drained, that «could lead to a propagating zirconium cladding fire and the release of large quantities of radioactive materials to the environment.»

It notes that a storage facility that could hold spent fuel for several decades while it cools could free up space in reactors» pools, lowering the risk of overheating, loss of coolant, and fires.

This problem continues to grow because there remains no place for used nuclear fuel rod storage other than such pools or massive dry casks — both located on nuclear facility grounds.

The most damaged Daiichi reactor, number 3, contains about 90 tons of fuel, and the storage pool above reactor 4, which the Nuclear Regulatory Commission's (NRC's) Gregory Jaczko reported yesterday had lost its cooling water, contains 135 tons of spent fuel.

And the U.S. National Academy of Sciences in 2006 suggested the practice of overcrowding pools for the storage of spent nuclear fuel rods — that has caused fires and explosions at Fukushima Daiichi, which stores far less used fuel than typical U.S. plants — could prove dangerous.

Besides developing better systems for monitoring the pools, the panel recommends that NRC take another look at the benefits of moving spent fuel to other storage as quickly as possible.

Many plants around the country have maxed out temporary storage in their spent - fuel pools, forcing them to put waste into huge, dry casks.

The nuclear spent fuel produced during 14 years of operation at Rancho Seco was kept cool in a water pool on site and is now in protective dry storage.

After removal from the reactor core, spent fuel assemblies are placed in dedicated spent fuel storage racks in the below ground spent fuel pool, which contains four times more water volume for cooling per fuel assembly than current designs.

The NuScale spent fuel pool provides storage for up to 10 years of spent fuel storage, plus temporary storage for new fuel assemblies.

Nuclear plant fuel managers; dry fuel storage project managers; used fuel cask designers; utility licensing and compliance personnel; used fuel storage, transportation, decommissioning and disposal consultants; NDE vendors; architect engineers; pool - to - pad services companies; hardware suppliers; government agency managers, technical experts, contractors, stakeholders and international experts responsible for used nuclear fuel management and decommissioning issues.

A recent NRC report purports to show that the risks of continued spent fuel storage in pools is very low, but does not, for example, include the possibility of a terrorist attack on the pool.

Japan's Self - Defense Forces worked to cool a fuel rod storage pool at Reactor No. 3 at the Fukushima Daiichi plant on Friday.

The current nuclear waste that we have sitting at the bottom of spent fuel pools and in dry cask storage would be more than enough to fuel the first reactors.

Annually, Entergy will be responsible for moving a set number of spent fuel rods from its dangerous storage pools to dry cask storage on site - a much safer technology for storing radioactive material.

Another consideration, as Rita Sipe, manager of Duke Energy's Nuclear Fleet Communications, in February told POWER, is that used fuel pools and dry cask storage sites, which Duke has located at five of the company's six operating nuclear plants, require operations and maintenance (see sidebar, «The Dry Cask Boom»).

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.