Nuclear Power Plant Isar, Germany

Spent nuclear fuel pool

Turbine of a nuclear plant

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Current situation of Chernobyl

Current situation of Chernobyl

The recovery of the accident area and cleaning products has resulted in a large amount of radioactive waste and contaminated equipment, stored at about 800 different sites inside and outside the 30 km exclusion zone around the nuclear reactor 4 from Chernobyl.

These nuclear wastes are partially stored in containers or buried in trenches, which may lead to a risk of contamination of groundwater.

The sarcophagus and the proliferation of waste storage sites have been assessed as a source of hazardous radioactivity in nearby areas, and some NEA experts feared that the sinking of the failed reactor would cause serious damage to the only operating reactor Until 15 December 2000, the…

Last review: May 25, 2017

History of nuclear energy

History of nuclear energy

To explain the history of nuclear energy we could distinguish three major stages:

  • Physical and chemical scientific studies of the elements.
  • The development of the nuclear bomb during World War II.
  • Use of nuclear energy in the civil field.

Scientific studies cover this whole period since the first Greek philosophers began to define atoms, until the development of the first nuclear bomb. In this process, different scientists discover the presence of electrons, neutrons and protons and properties that make one atom more radioactive than another.

During World War II USA, animated by Albert Einstein, impels the first nuclear bomb. This will be…

Last review: May 17, 2017

What is nuclear energy

What is nuclear energy

Nuclear energy is the energy in the nucleus of an atom. Atoms are the smallest particles that can break a material. At the core of each atom there are two types of particles (neutrons and protons) that are held together. Nuclear energy is the energy that holds neutrons and protons.

Nuclear energy can be used to produce electricity. This energy can be obtained in two ways: nuclear fusion and nuclear fission. In nuclear fusion, energy is released when atoms are combined or fused together to form a larger atom. The sun produces energy like this. In nuclear fission, atoms are split into smaller atoms, releasing energy. Actually, nuclear power plants can only use nuclear fission to produce…

Last review: May 16, 2017

Nuclear weapons

Nuclear weapons

A weapon is an instrument used to attack or defend itself. Within the different types of weapons exist the nuclear weapons. A nuclear weapon is considered to be that weapon that uses nuclear energy.

If they distinguish two types of nuclear weapons depending on the function of nuclear energy:

  • Those who use nuclear energy directly to generate a big explosion, as would be the case with the atomic bomb.
  • Those who use nuclear energy as a source of energy for propulsion. For example nuclear submarine propulsion, aircraft carrier, etc.

Nuclear weapons are considered the most dangerous weapon designed so far in the world. Only one bomb can destroy entire…

Last review: May 12, 2017

Nuclear fuel definition

Nuclear fuel definition

The nuclear fuel is the material that has been adapted for use in nuclear power generation.

When it comes to nuclear fuel we can be talking about the same item or set that is made ready it can be used for containing the material itself, but also other elements.

The most widely used process involving the nuclear fission fuel.

There are different types of nuclear fuel, but the most common fuel is consisting of fissile elements such as uranium, generating chain reactions in nuclear reactors. The most common isotope in the fission is uranium-235.

Production processes nuclear fuel forms the set called the nuclear fuel cycle.

Another nuclear process is much less…

Last review: April 27, 2017

Uranium - nuclear fuel

Uranium - nuclear fuel

Uranium is the most commonly used nuclear fuel in nuclear fission reactions. It is a natural element that can be found in nature. However, in order to be able to use uranium in a nuclear reactor it must undergo some treatment.

 

To know the peculiarities that make uranium so different from the other substances we must first consider some basic nuclear physics.

 

Basic physical considerations An atom of a nucleus and of electrons that surround this nucleus. In turn, a nucleus consists of protons and neutrons. A proton has a positive charge. A neutron has no electric charge and is neutral.

 

The positive charges of the protons try to…

Last review: April 27, 2017

Nuclear fusion reactor - ITER Project

Nuclear fusion reactor - ITER Project

The experimental fusion reactor ITER (International Thermonuclear Experimental Reactor) is a large-scale scientific experiment designed to test the feasibility of fusion as an energy source. Currently the ITER fusion reactor is under construction in the south of France, in Cadarache.

At the industry level, nuclear fusion does not exist yet. Since the 50s under investigation on the use of the energy generated in the nuclear fusion of light atoms into heavier. The development of nuclear fusion is considered very important because of the advantage offered by the large amount of energy released in the process and the abundance of deuterium, an isotope of hydrogen suitable for fusion.

Last review: April 25, 2017

What is a nuclear power plant?

What is a nuclear power plant?

A nuclear power plant is a facility for obtaining electrical energy using nuclear energy.

Its operation is similar to that of a thermal power plant or that of a solar thermal plant: from a source of energy thermodynamics is used to obtain heat, with the heat of steam and with the steam to drive a turbine that will generate electricity.

The difference between the different types of electrical installations is that the power source: a nuclear power plant uses the heat released in the nuclear fission reactions of certain atoms, in a thermal power station the heat source (thermal energy) comes from the Combustion of one or more fossil fuels (coal, natural gas, fuel ..). Finally…

Last review: April 5, 2017

Accident of the nuclear power station of Vandellós I

Accident of the nuclear power station of Vandellós I

The nuclear power station of Vandellós I is part of the nuclear complex located next to the population of L'Hospitalet de l'Infant in the province of Tarragona. The complex is formed by the nuclear plants of Vandellós I and Vandellós II. At present, only the Vandellós II nuclear power plant is still operational.

On 19 October 1989, a nuclear accident occurred at the Vandellós I plant.

That day a fire broke out in the electric generator due to a mechanical failure. Indirectly, this fire caused a flood of seawater in the area of the nuclear reactor that caused some of the safety systems to be inoperative.

The Vandellós I Nuclear…

Last review: April 3, 2017

What is an electric generator?

What is an electric generator?

An electric generator is a machine able to transform any type of energy, which can be chemical, mechanical or light, into electricity.

An electrical generator is all that a device capable of maintaining electric potential difference (voltage) between two points, called centers or terminals. Electric power generators are machines designed to transform mechanical energy into electricity.

Operation of an electric generator

The operation of an electric generator is similar to an electric motor running in reverse.

This transformation is achieved by the action of a magnetic field on electrical conductors arranged in coils on armor plates. If mechanically relative movement…

Last review: March 19, 2017

Chinon Nuclear Power Plant

Chinon Nuclear Power Plant

The Chinon nuclear power plant is located in France, near Chinon in the territory of the city of Avoine (Indre-et-Loire) in the Country of Véron. Uses water from the Loire River.

The annual production of the nuclear plant is approximately 24 billion kilowatt-hours per year. This production accounts for approximately 4% of national electricity production in France. 1500 people work in the nuclear power plant.

History of the Chinon nuclear power plant

The Chinon nuclear power plant has two different types of nuclear reactors:

Gas-graphite reactors

Between July 1955 Electricité de France (EDF) controls a nuclear reactor project at the Commissariat for Atomic…

Last review: December 2, 2016