Sentences with phrase «in reactor unit»

The trench in reactor unit 2 is the most contaminated, with 1000 millisieverts of radiation per hour, exposure to which can cause acute radiation sickness.

Not exact matches

In early May, Unit 4's reactor core was still melting down.

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.

«This unique GWE system offers high rate anaerobic treatment with GWE's ANAMIX ™ reactor (completely mixed continuous flow stirred tank reactor, CSTR) followed by biomass recovery in a combined sludge separation system consisting of GWE's SUPERSEP - CF followed by GWE's Dissolved Biogas Flotation (DBF) unit SUPERFLOT - BIOGAS ™.»

Depending on the substrate, loading rates of up to 10 — 15 kg COD / m3 per day and high biogas production rates per unit reactor volume can be obtained in RAPTOR ™ plants.

«We just completed that last week, and now we'll finish up that process of putting new fuel in the reactor and then they can start Unit 3 back up.»

On Dec. 29, 2014, an alarm went off, indicating low pressure in the fire suppression system at the Unit 2 reactor, according to the report.

Fire protection piping at Indian Point's Unit 2 reactor broke and leaked and though it resulted in a loss of water pressure to the fire suppression system, inspectors from the Nuclear Regulatory Commission determined it was of «very low safety significance,» according to the N.R.C. report.

Cuomo said the state learned yesterday that hundreds of faulty bolts were discovered within the reactor at the Indian Point Unit 2 Plant — «the latest in a long series of incidents that raise deep concerns about the management, maintenance and equipment standards» there.

The number of degraded bolts at the Indian Point unit 2 reactor was the largest seen to date at a reactor in the United States, so the NRC is closely monitoring the plant to return it to service in the near future, officials said.

At an event in Poughkeepsie on Monday, Cuomo was asked by a reporter about the return of the unit 2 reactor to service.

The inspection of the bolts in the unit 3 reactor, which are not expected to show the same level of deterioration, has been moved up from 2019 to 2017, NRC officials said.

In fact, throughout the first week of the Fukushima crisis, emergency workers tried to figure out a way to open up a larger hole in the Unit 2 reactor building, which had not suffered an explosion, to allow better access to inject cooling water without creating the kind of spark that might cause another hydrogen blasIn fact, throughout the first week of the Fukushima crisis, emergency workers tried to figure out a way to open up a larger hole in the Unit 2 reactor building, which had not suffered an explosion, to allow better access to inject cooling water without creating the kind of spark that might cause another hydrogen blasin the Unit 2 reactor building, which had not suffered an explosion, to allow better access to inject cooling water without creating the kind of spark that might cause another hydrogen blast.

As NRC staff noted during the Fukushima emergency, when there was concern that the spent - fuel pool at Unit 4 may have lost its cooling water as well as been damaged by the reactor building explosion, adding cold water to already hot fuel can create a problem in its own right.

TEPCO modeling and analyses suggest that most, if not all, of the fuel in the Unit 1 reactor melted, burned through the reactor pressure vessel, dropped to the bottom of the containment vessel, and perhaps ate into the concrete base.

Fuel units must be stored initially in pools at reactor sites for about five years, until the decay heat drops enough to permit movement into dry cask containers.

In the 1980s this research was directed toward a fast reactor (dubbed the advanced liquidmetal reactor, or ALMR), with metallic fuel cooled by a liquid metal, that was to be integrated with a high - temperature pyrometallurgical processing unit for recycling and replenishing the fuel.

Two snakelike robots crawled through a pipe leading into the 48 - meter - tall primary containment vessel in the Unit 1 reactor to ascertain the state of melted fuel masses.

The fire in the spent fuel store of reactor unit 4 has probably released the worst of the radioactive materials so far.

Reactor Unit 2 On 14 March, engineers decided that the water level in the reactor was so low that it, too, needed sea water and boron injected into it.

The cable trench there contains much more radiation than those in the other three damaged reactor units.

«Several technical and manufacturing innovations make this reactor a potential game changer for the global clean energy market,» said Christofer Mowry, president and CEO at Babcock & Wilcox Modular Nuclear Energy, LLC, the new unit in charge of the small reactor.

Jaczko, chairman of the Nuclear Regulatory Commission, said his staff in Tokyo had been told by Japanese utility officials that cooling water that normally covers spent fuel was nearly or totally gone from an uncovered concrete pool above reactor Unit 4.

Much of the 4200 - square - kilometer zone was evacuated after the nuclear plant's unit 4 reactor exploded in 1986, sending a radioactive plume over Europe.

Since March, there have been constant threats of strikes in the environment protection laboratory, the radiochemical unit and the reactor control room.

Flooding of critical equipment resulted in the extended loss of onsite power with the consequent loss of reactor monitoring, control, and cooling functions in multiple units.

At about 4 A.M. local time, the main pumps feeding cooling water into Unit 2 failed and, due to confusion amidst the klaxon of alarms and flashing warning lights, the men operating the reactor made the situation worse when they mistakenly thought there was too much water in the core and shut off emergency pumps, thereby reducing further the amount of coolant reaching the reactor.

(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.)

The «devil's scenario» nearly played out in Unit 4, where the reactor was shut down for maintenance.

And gas plants can be built in small units in only three or four years, as compared with six or eight for mammoth reactors.

Construction work began in December 2007 on the 1650 MWe unit at the Flamanville site in Normandy - where two reactors have been operating since 1986 and 1987.

Major features of SMR - 160 include its small footprint (4.5 acres), minuscule site boundary dose, large inventory of coolant in the reactor vessel and its modularity — allowing project owners the freedom to effectively build the number of units to meet current and future demand.

We are pleased to announce that URS Nuclear, a unit of URS Corporation's (URS) Energy & Construction Division, has signed a Memorandum of Understanding with Holtec International that gives URS an important role in the development of Holtec's small modular reactor, the SMR - 160.

In exchange, PSEG Power has been granted an option to acquire an ownership interest in the technology, which paves the way for PSEG Power to be responsible for the training and operations of the SMR - 160 when the new reactor units are builIn exchange, PSEG Power has been granted an option to acquire an ownership interest in the technology, which paves the way for PSEG Power to be responsible for the training and operations of the SMR - 160 when the new reactor units are builin the technology, which paves the way for PSEG Power to be responsible for the training and operations of the SMR - 160 when the new reactor units are built.

Constellation and French power company Electricità © de France are partners in Unistar, a joint venture that had intended to make the new Calvert Cliffs reactor the first of a fleet of identical units around the country.

Five smaller Japanese reactors - Genkai 1, Mihama 1 and 2, Shimane 1 and Tsuruga 1 - were declared for decommissioning in mid-March 2015 following the introduction of an accounting - related system earlier that month to determine which units should not be restarted.

In addition to fixed - bed reactors, 2D planar technologies systems, and parallel processing of multiple units, bioreactors containing microcarrier beads have been used (32).

In it, he called for international intervention before the Tokyo Electric Power Company began to move fuel rods from the spent fuel pool for reactor unit 4 and urged the four climate scientists who recently called for a big push to advance safer nuclear power plant designs to go to the site.

Developed nations are — just barely — able to build and maintain these devices with an acceptable (assuming the complete destruction of reactor units at Three Mile Island and Chernoybl are ok) level of catastrophic accidents using the quality of human resources available in the U.S. and Russia, two relatively advanced nations.

The pressure vessel head has been installed at one of the two high - temperature gas - cooled reactor units that make up the demonstration HTR - PM plant under construction at Shidaowan in China's Shandong province.

A revenue gap analysis conducted by the national laboratory for 79 of 99 operational reactors that are in a region where public wholesale electricity market prices are available suggests that 63 units would have lost money in 2016.

The schedule is for Entergy Corp. to shut down the Unit 2 reactor in April 2020 and Unit 3 in April 2021.

Energy Alberta Corporation (Energy Alberta) has filed an application for a site preparation license for two twin - unit ACR - 1000 CANDU nuclear reactors to provide power for the oil sands operations in Alberta.

In addition, at refueling all of the bolts will be inspected at both units and any bolts will be replaced to ensure the reactors» structural integrity through 2021.

Unit 1 reactor was permanently shut down in October 1974 because the emergency core cooling system did not meet regulatory requirements.

Also in the running would be utilities giving up on 4 or 5 nuclear reactors here in the USA (Crystal River, Vermont Yankee, San Onofre, Kewaunee); these units were all marginal and / or already offline, but it shows which way the momentum is going for nuclear power here in the states.

By helping to finance the construction of the reactors — the first new U.S. nuclear power units in more than 30 years — Obama is hoping to jump - start his efforts to pass comprehensive climate - change legislation, which has stalled in Congress in the face of GOP opposition.

The loan guarantees announced Tuesday would sharply lower borrowing costs to finance new reactors at the Alvin W. Vogtle Electric Generating Plant in eastern Georgia near the South Carolina border, where two units are being operated by the Atlanta - based Southern Co., a large utility.

Companies in line for new reactor licenses have several years before they have to build a new unit, which can cost between $ 5 billion and $ 12 billion, said Jone - Lin Wang, head of CERA's global power group.

The last new U.S. nuclear power reactor built went into operation in 1996, but construction on that unit began before the Three Mile Island incident in 1979 helped slam the brakes on the industry's first phase of widespread growth.