Nuclear Power Plant Isar, Germany

Spent nuclear fuel pool

Turbine of a nuclear plant

Tag: uranium

History of nuclear energy

The Greek philosopher Democritus of Abdera was the first in history to give a definition of atom as the smallest constituent of matter, in the V century B.C. The term "atom" is a Greek word that means "not divisible". But later, with the arrival of nuclear fission it's possible to split atoms to…

Accident treatment plant Tokaimura nuclear fuel

The treatment plant is uranium fuel in Tokaimura (Japan), 120km northeast of Tokyo, in Ibaraki Prefecture. Property is currently owned by JCO Company.

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

The installation consists of three auxiliary buildings uranium conversion:

  • One with an annual capacity of 220 tons of uranium per year for low-enriched (about 5%).
  • Another with an annual capacity of 495 tons of uranium per year for low-enriched (less than 5%).
  • Another, who had the accident,…

Types of nuclear reactors

We distinguish two types of nuclear reactors

  • Nuclear research reactors. This type of reactors used neutrons generated during nuclear fission reactions to produce radioisotopes that are going to be used in other applications of nuclear energy or materials for studies.
  • Nuclear power reactors. These reactors are based on the use of the thermal energy generated in the fission reactions. The main and most known application of this type of reactor is to generate electricity in nuclear power plants. However, also they are used for desalination…

Uranium - nuclear fuel

Uranium is the most widely used nuclear fuel in nuclear fission reactions.

 

For the particular makes the uranium so different from the other substances we must first consider some basic nuclear physics.

 

Atom electrons comprises surrounding a core; in turn, a core consists of protons and neutrons. A proton has a positive charge; a neutron has no electric charge and is neutral. The positive charges of protons outward violently push attempt. But within the compact volume of a new class of core strength makes an appearance: an attractive force short range,…

Nuclear power plant definition

A nuclear power plant is a facility for the production of electricity using nuclear energy.

Its operation is similar to a thermic power plant. The difference is that the power source from a nuclear plant is nuclear fission of certain atoms while in a thermic power plant the heat source (thermal energy) from burning of one or more fossil fuels (coal, natural gas , fuel ..). As in a conventional thermal power plant the heat is used to generate steam that drives a steam turbine connected to a generator that produces electricity.

The thermal energy that nuclear power…

Plutonium - nuclear fuel

Plutonium is a chemical element with symbol Pu and atomic number 94 which belongs to the actinide series of elements. Plutonium has 16 isotopes, all radioactive. The element is a silvery metal and has 5 different crystal structures.

Chemically plutonium is a very active material. You can form compounds with all nonmetals except the noble gases. The metal dissolves in acidic and reacts with water, but only moderately in comparison with the acid.

While you can find traces in nature, all isotopes of plutonium are of artificial origin.

Radioactivity plutonium

The more…

Nuclear power in India

Nuclear power in India

Nuclear power in India is currently in a state of growth with strong nuclear development plans. By 2020, India has set a target to supply 14,600 MW to the grid through the use of nuclear energy. Subsequently, in 2050, India wants 25% of electricity is produced by nuclear energy.

India is a founding member of the global nuclear watchdog, the International Atomic Energy Agency in Vienna.

Because of these restrictions on trade and the lack of indigenous uranium, only India has been developing a nuclear fuel cycle to exploit its reserves of thorium.

Plans to boost nuclear power…

Nuclear reactor

Nuclear reactor

A nuclear reactor is an installation capable of initiating, controlling and maintaining nuclear reactions (usually nuclear fission) chain that occur in the core of this facility.

The composition of the nuclear reactor is formed by the nuclear fuel, coolant, control elements, structural materials and, in the case in question a thermal nuclear reactor, the moderator.

Nuclear reactors can be classified as thermal reactors and fast reactors.

Thermal reactors are those which function by delaying (moderating) the fastest neutrons or increasing the proportion of fissile atoms.…

Nuclear power in Argentina

Electricity consumption in Argentina has grown strongly since 1990. Per capita consumption was just over 2,000 kWh / year in 2002 and increased to over 2,600 kWh / year in 2007. Gross production of electricity in 2007 was 115 million kWh, 54% from gas, 27% hydro, 9.4% oil, a 2.2% from coal, and 6.3% (7.2 million kWh) of nuclear origin. In 2008, nuclear energy provides more than 6.8 million kWh of electricity - about 6.2% of total electricity generation.

In Argentina, the electricity production is largely privatized, and is regulated by the ENRE (National Regulatory Authority for Electricity).…

Atomic bomb

The operation of an atomic bomb is similar to the operation of a nuclear reactor, wherein the mass of fuel is well above the critical mass. Initially, the fuel is fragmented, and each of the pieces, enough from the others, so it untreated the critical size; Explosion occurs at closer fragments including sharply.

To increase the performance and efficiency of an atomic bomb to be used practically pure fuels; those used so far have been uranium-235 and plutonium-239. Uranium-235 is difficult and expensive to obtain, because it is not possible to chemically separate it from natural uranium…

Nuclear power plant of Atucha-1 , Argentina

Atucha I est située à 100 km de la ville de Buenos Aires (Argentine), près de la ville de Lima sur la rive droite du fleuve Paraná de las Palmas.

A été exploitée pendant plus de 30 ans. Pendant ce temps, le réacteur nucléaire a généré plus de 65.000 millions de kWh d'énergie…