Nuclear Power Plant Isar, Germany

Spent nuclear fuel pool

Turbine of a nuclear plant

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Radionuclide

Radionuclide

A radioactive nuclide, radionuclide or radionuclide is an unstable nuclide and therefore degenerates emitting ionizing radiation. Although some physicists sometimes use the word radioisotope vulgarly to designate it, it should be noted that the strict or formal language of the physics and technology of nuclear energy is wrong, since a nuclide and an isotope are not the same.

When a radionuclide emits radioactivity it reaches a more stable state, which requires less energy than before and, in general, transforms into another different nuclide (or in the same one, but less excited, if it has emitted gamma radioactivity), which can also…

Last review: December 13, 2018

Accident in Tokaimura Nuclear Fuel Treatment Plant

Accident in Tokaimura Nuclear Fuel Treatment Plant

The uranium fuel treatment facility is located in Tokaimura (Japan), 120km northeast of Tokyo, in the Ibaraki Prefecture. It is currently owned by the company JCO.

The nuclear accident of the installation took place on September 30, 1999, in the conversion building of the nuclear plant.

The installation consists of three auxiliary uranium conversion buildings:

  • One with an annual capacity of 220 tons of uranium per year for low enrichment (approximately 5%).
  • Another with an annual capacity of 495 tons of uranium per year for low enrichment (less than 5%).
  • Last review: December 13, 2018

Nuclear power plant of Calvert Cliffs-1, USA

Nuclear power plant of Calvert Cliffs-1, USA

The Calvert Cliffs nuclear power plant is located on the west coast of the Chesapeake Bay in Lasby, Calvert, Maryland. In U.S.A. It is a nuclear power plant that has two nuclear pressurized water reactors (PWR).

Bechtel designed and built the nuclear power plant.

Unit 1 has a turbine and generator from General Electric. The nuclear reactor 1 has an electrical power of 873 megawatts (MW).

Unit 2 has a turbine and generator from Westinghouse. The nuclear reactor 2 of the thermoelectric plant has an electrical power of 862 MW.

Last review: December 4, 2018

 Nuclear power plant in Callaway, USA

 Nuclear power plant in Callaway, USA

The Callaway nuclear power plant is a nuclear power facility for the generation of electricity. This nuclear power plant operates in the central part of the United States. The nuclear facility is located in Calloway County, Missouri.

The Callaway nuclear power plant was launched in December 1984. The plant's only nuclear reactor has a capacity of 1,236 megawatts (MW). The nuclear reactor is a nuclear PWR pressurized water reactor manufactured by Westinghouse. The current reactor provides 19% of Missouri's electricity needs.

The power plant is operated by Amerenue. The plant was synchronized with the network on October 24, 1984.

The Nuclear Regulatory Commission's estimate…

Last review: November 27, 2018

 Angra-1 nuclear power plant, Brazil

 Angra-1 nuclear power plant, Brazil

The nuclear power plant Angra is one of the few nuclear plants in Brazil. The plant is located in Angra Nuclear Power Plant (CNAAA) in Playa Itaorna in Angra dos Reis, Rio de Janeiro, Brazil.

This is two nuclear pressurized water reactors

  • The nuclear reactor Angra 1 has a net power of 637 MWe, connected to the electricity grid for the first time in 1985.
  • The nuclear reactor Angra 2 has a net capacity of 1,350 MWe, I connectado to the electricity grid in 2000.
  • It is working on a third reactor, Angra 3, which will have an estimated capacity of 1,405 MWe. Construction began in 1984 but stopped in 1986. Work resumed in on June 1, 2010 to enter service between…

    Last review: November 24, 2018

Nuclear power plant of Vandellós I

Nuclear power plant of Vandellós I

The Vandellós I nuclear power plant is a graphite-gas nuclear power plant that began operating in 1972. It was part of the group of first generation nuclear power plants in Spain, formed by the Zorita nuclear power plant, Santa Mª de Garoña and the Vandellós I nuclear power plant. It was owned by the Spanish-French company HIFRENSA (Hispano-Francesa de Electricidad).

The nuclear power plant had 480 megawatts (MW) of power. So far the Spanish nuclear power plants were refrigerated and moderated by water. The Vandellós plant, on the other hand, was cooled by gas and its nuclear reaction was moderated by graphite. This system would represent significant disadvantages in the treatment…

Last review: November 23, 2018

Nuclear power station of Vandellós II

Nuclear power station of Vandellós II

The Vandellós II nuclear power plant is a power plant. The facility is located on the shores of the Mediterranean Sea, in the municipality of Vandellós, in the province of Tarragona. The national participation in the construction and supply of equipment represented more than 89% of the total, which represented the highest percentage achieved in Spain for this type of project.

The plant as a whole, which has a nuclear pressurized water reactor, consists of several main buildings: containment building, fuel, auxiliary and turbine building. In addition, it is equipped with a central cooling water intake pipe, formed by reinforced concrete caissons, which goes into the sea.…

Last review: November 23, 2018

Nuclear Energy Situation in the World

Nuclear Energy Situation in the World

Nuclear energy began to develop during the first decade of 1940. Initially, the research was aimed at the development and production of the atomic bomb. Subsequently, research began on other applications of nuclear energy; the investigation focused on the peaceful use of nuclear energy.

Currently, there are 30 countries in the world that have nuclear power plants for the generation of electricity. In any case, the number of countries that take advantage of nuclear energy is much greater since countries such as Denmark and Italy, which do not have any nuclear facilities, obtain about 10% of their electricity from nuclear energy imported from other countries.

Worldwide, about…

Last review: November 23, 2018

Steam turbine

Steam turbine

A steam turbine is a machine that exploits the thermal energy of steam under pressure, converting it into useful mechanical energy through a thermodynamic transformation of expansion. Specifically, the steam turbine converts the internal energy of the vapor into kinetic energy of rotation.

The steam turbine, thanks to the highest thermal efficiency and the best power / weight ratio, has completely replaced the steam engine, which was an alternative engine invented by Thomas Newcomen and then significantly improved by James Watt.

From a thermodynamic point of view, the maximum efficiency occurs when steam expansion is an ideal process (reversible transformation) in which the…

Last review: November 21, 2018

Gas cooled reactor

Gas cooled reactor

A gas reactor or GCR (English gas cooled reactor) is a type of nuclear nuclear reactor of nuclear fission. The neutron moderator of this type of nuclear reactor is graphite. The refrigerant of the nuclear gas reactor is carbon dioxide in the gaseous state. According to the classification made by the International Atomic Energy Agency of the United Nations, IAEA, this type of reactors includes those of the AGR type (of the English Advanced Gas-cooled Reactor) and Magnox (of the English Magnesium Non-OXidising), both of British technology.

Within the history of nuclear energy there was also a type of French GCR, called UNGG (from the French Uranium Naturel Graphite Gaz), but it is a…

Last review: November 21, 2018

Byron nuclear power plant, United States

Byron nuclear power plant, United States

Byron's nuclear power plant is a nuclear power plant that produces electrical power in Ogle County west of Chicago and 27 km southwest of the city of Rockford, Illinois, in the state of Illinois, in the center from United States. It was approved for launch in 1985 and 1987 respectively. The maximum installed power is 2 300 - 2 356 megawatts MW.

The annual production in 2007 was approximately 18.85 TWh of electric power.

The nuclear facility has two Babcock and Wilcox pressurized water nuclear reactors, unit 1 and unit 2, which started operating in September 1985 and August 1987 respectively.

The plant was built for Commonwealth Edison and is currently owned and operated…

Last review: November 19, 2018