Nuclear Power Plant Isar, Germany

Spent nuclear fuel pool

Turbine of a nuclear plant

Electricity

Situation of nuclear energy in the world

Situation of nuclear energy 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…

Electric power

Electric power

We define electrical energy as the form of energy that results from the existence of a potential difference between two points. When these two points are put in contact by means of an electrical conductor we obtain an electric current.

In physics, the electric potential energy, also called electrostatic potential energy, is the potential energy of the electrostatic field. This is an energy that has an electrical charge distribution, and is linked to the force exerted by the field generated by the distribution itself. Together with magnetic energy, the electric potential energy constitutes…

Nuclear power in France

In 1974 the French government decided to rapidly expand production capacity of nuclear power in France just after the first oil crisis. This Decision n was made in the context of a France with substantial competition in engineering, but few indigenous energy resources. Nuclear power, with the cost of fuel is a relatively small the total cost, in this sense, getting a reduction in imports and greater energy security could.

As a result of the decision of 1974, France currently has a high level of energy independence and almost the lowest cost electricity in Europe. It also has a level…

Fukushima nuclear accident

Fukushima nuclear accident

On March 11, 2011 in Fukushima occurred one of the worst nuclear accidents in history after the Chernobyl nuclear accident.

A 8.9 magnitude earthquake off the northwest coast of Japan and a subsequent tsunami severely affected Dahiichi Fukushima nuclear plant on the northeast coast of Japan.

At the time of the nuclear accident at the Fukushima reactors had 6. Reactors 1, 2 and 3 were operating while nuclear reactors 4, 5 and 6 were unemployed for maintenance.

After the earthquake Fukushima reactors that were still running is automatically stopped. To cool the reactors,…

Renewable energy

Renewable energy

Renewable energies are those energies using an energy source or fuel which is considered inexhaustible or can be regenerated at the same rate at which it is consumed.

The classification of renewable energy depends on natural resources exploited.

Solar energy

We distinguish two ways of using solar energy:

  • Solar thermal
  • Solar photovoltaics

The use of solar thermal is to use heat energy obtained from solar radiation to heat a fluid, depending on its temperature,…

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…

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).…

What is the nuclear energy

What is the 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…

Nuclear energy

Nuclear energy is the energy contained in the nucleus of atoms. Nuclear energy is used in multiple applications (see applications of nuclear energy), but the best known application is the generation of electricity.

The term nuclear energy is often used to refer to the electrical energy generated by nuclear power plants.

One of the ways of harnessing…

Nuclear power in Mexico

Nuclear power in Mexico

Mexico is rich in hydrocarbon resources and is a net exporter of energy. Country's interest in nuclear energy is based on the need to reduce their dependence on these sources of energy. In recent years, Mexico's energy is increasingly dependent on natural gas.

The energy growth was very rapid in the 1990s, but then stabilized for a few years. Since 2007 expected new growth in demand for electricity to an average rate of almost 6% per year. In 2007, we generated 257 million kWh. Supply Origin is varied electric, gas 126 TWh (49%), oil of 52 TWh (20%), coal 32 TWh (12.5%) and hydroelectric…

Nuclear Moratorium

The nuclear moratorium supposed blocking 5 projects of nuclear power plants that had approved the 7 (and some insiders) in Spain.

The National Energy Plans and Nuclear Moratorium

In 1983 he drafted a National Energy Plan in qual nuclear energy in Spain was hit hard.

To bring national electricity production to energy demand and adjust prices of the Congreos Diputoado in June 1984 approved the 1983 National Energy Plan (PEN-83).

The nuclear stop was the main novelty of the PEN-83 that was slowing building program of nuclear power.

What reasons provoaron the…

Advantages and disadvantages of nuclear power

Advantages and disadvantages of nuclear power

In this section we analyze the advantages and disadvantages of nuclear power. Nevertheless, most organizations related to nuclear energy are already positioned for or against the use of nuclear power. On this site we try to make an objective analysis about this question, giving all the relevant information and offering a space for different conclusions.

Advantages of nuclear power

The generation of electricity through nuclear energy reduces the amount of energy generated from fossil fuels (coal and oil). Less use of fossil fuels means lowering…

Brown's Ferry Nuclear Power Plant, USA

Brown's Ferry Nuclear Power Plant, USA

The Browns Ferry nuclear power plant (born as a Browns Ferry nuclear plant) is a functioning nuclear power plant in the southeastern United States.

The station is located on the shores of Lake Wheeler in the Tennessee River Basin in Limestone County, Alabama, 35 miles west of the city of Huntsville.

Unit 1 of the Browns Ferry Nuclear Power Plant

Unit 1 is a 1101 megawatt electric BWR / 4 network built by General Electric. Construction began in Unit 1 on September 12, 1966 and was originally started online on December 20, 1973. It was authorized to operate until December…

 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…

Nuclear Power Plant

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 to get steam and with the steam to drive a turbine that will generate electricity.

The difference between the different types of electrical installations is in the energy 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…

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…

Nuclear energy in Brazil

Nuclear energy in Brazil

In 2016, gross electricity production in Brazil was 579 TWh, including 381 TWh (66%) of hydroelectric power, 56 TWh (10%) of gas, 51 TWh (9%) of biomass and waste, 34 TWh ( 6%) of wind energy and solar energy, 26 TWh (4%) of coal, 16 TWh (3%) of nuclear and 15 TWh (3%) of oil.

The high dependence on hydroelectric energy leads to a certain climate vulnerability that is driving the policy to reduce dependence on it.

Around 40% of Brazil's electricity is produced by the national system of Eletrobrás a. About 20% of electricity comes from public utilities, and the rest comes…

Pressurized Water Reactors

Pressurized Water Reactors

The pressurized water nuclear reactor is the type of nuclear reactor more used worldwide in the nuclear power plants of generation of electricity. At present, there are more than 230 nuclear reactors in the world made with the pressurized water system. Also known by its abbreviations PW. Its main feature is the use of water under high pressure in the primary circuit to prevent it from boiling.

Within the naval engineering the pressurized water nuclear reactor (PWR) is widely used. In fact, this model was originally designed to be used on a nuclear submarine.

Pressurized water…

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…

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.…

Differences between nuclear fusion meltdown

In a nuclear accident and the accident at the Fukushima nuclear plant in Japan, usually speaks often of the risk of core melt.

Do not confuse the meltdown of a nuclear reactor with nuclear fusion.

Nuclear fusion is the process in which two atoms are joined to form one single pass. This releases a lot of energy that could be harnessed to generate electricity. Unfortunately, these reactions can not be controlled well and much less to create nuclear power to produce electricity.

Nuclear plants currently use nuclear fission reactions, which is based precisely on the basis atom…

Nuclear fusion

Nuclear fusion

Nuclear fusion is a nuclear reaction through which two light nuclei of atoms, usually hydrogen and its isotopes (deuterium and tritium), are combined forming a heavier nucleus. This binding is usually accompanied by the emission of particles (in case of deuterium nuclei one neutron is emitted). This nuclear fusion reaction releases or absorbs a lot of energy in the form of gamma rays and kinetic energy of the emitted particles.This large amount of energy transforms matter to a plasma state.

The nuclear fusion reactions can emit or absorb…

Operation of a nuclear power plant

Operation of a nuclear power plant

Nowadays, the main use given to nuclear energy is the generation of electric power. Nuclear power plants are responsible of doing this process. Almost all nuclear power plants in production are using nuclear fission since the nuclear fusion, despite being under development, is currently unfeasible.

The operation of a nuclear power plant is identical to the operation of a thermoelectric power plant operating with coal, oil or gas, except in the way of providing heat to the water for converting this one into steam. In nuclear reactors this process of producing heat is made by the fission…

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…

Beaver Valley-1 nuclear power plant, USA

Beaver Valley-1 nuclear power plant, USA

The Beaver Valley nuclear power plant is a nuclear power plant that produces electricity on the Ohio River in the city of Shippingport, in the county of Beaver, in the western corner of Pennsylvania, USA. The last two nuclear reactors of the nuclear power plant were approved for commissioning in 1975 and 1986, while the previous 1957 Atomic Energy Station for Vessels was permanently closed in 1982. The original work was the first power plant nuclear in the United States.

The two facilities are located in the same place on the Ohio River. The maximum installed power in the current plant…

Cernavoda nuclear power plant 1 Romania

The nuclear power plant is located in Cernavodă Cernavodă in Romania.

The nuclear plant produces about 18% of the country's electricity. Uses a nuclear reactor CANDU heavy water technology. Take the Danube River water for cooling.

The design of the nuclear plant was commissioned by the Atomic Energy of Canada Limited in the 80s, during the Communist era.

The initial project involved five units construcció

  • Unit No. 1. The construction of this unit ended in 1996 with an output of 705.6 MW electric power.
  • Unit number 2. day…