Please refer to the appropriate style manual or other sources if you have any questions. Nuclear power is the use of nuclear reactions that release nuclear energy to generate heat, which most frequently is then used in steam turbines to produce electricity in a nuclear power plant. A nation or group possessing nuclear weapons. The United States has the largest nuclear power industry, with more than 100 reactors; it is followed by France, which has more than 50. Power, especially electricity, the source of which is nuclear fission. Nuclear power is power released in nuclear reactions that can be converted to electric power. Corrections? Presently, the vast majority of electricity from nuclear power is produced by nuclear fission of uranium and plutonium. In 2011 nuclear power provided 10% of the world’s electricity. nuclear: [adjective] of, relating to, or constituting a nucleus. The nucleus is the central part of an atom. nuclear fuel to the material that is used to generate the nuclear reactions Post the Definition of nuclear power to Facebook, Share the Definition of nuclear power on Twitter, The Difference Between 'Hoard' and 'Horde'. Schematic diagram of a nuclear power plant using a pressurized-water reactor. Nuclear energy immediately became a military weapon of terrifying magnitude. nuclear reactor. Availability of cheap and reliable nuclear power may stifle use of other forms of power, particularly if … Professor of nuclear engineering and radiological sciences, University of Michigan, Ann Arbor. This process, nuclear fission, generates heat that is directed to a … The heat source in the nuclear power plant is a nuclear reactor. Nuclear is getting smaller … and it’s opening up some big opportunities for the industry. Nuclear power is power released in nuclear reactions that can be converted to electric power. This site focuses on nuclear power plants and nuclear energy. Learn a new word every day. energy, electrical power, nuclear power, solar power, steam power, water power 2 A country that has nuclear weapons. Active and passive safety systems are incorporated into the European Pressurized Water Reactor (EPR) as well. A nuclear power plant is a type of power station that generates electricity using heat from nuclear reactions. Let us know if you have suggestions to improve this article (requires login). Nuclear energy, energy that is released in significant amounts in processes that affect atomic nuclei, the dense cores of atoms. “Nuclear power.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nuclear%20power. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Please tell us where you read or heard it (including the quote, if possible). The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. The EIA projects that Asia will have the largest nuclear capacity by 2035, mainly because of an ambitious building program in China. Nuclear power, electricity generated by power plants that derive their heat from fission in a nuclear reactor. nuclear reaction. It is s generic designation including BWR and PWR types. Availability of cheap and reliable nuclear power may stifle use of other forms of power, particularly if it is perceived as less polluting. Thorium could power the next generation of nuclear reactors What the end of the atomic renaissance means for nuclear power Fukushima accident gave everyone an X-ray’s worth of radiation The lessons learned from that disaster included the need to (1) adopt risk-informed regulation, (2) strengthen management systems so that decisions made in the event of a severe accident are based on safety and not cost or political repercussions, (3) periodically assess new information on risks posed by natural hazards such as earthquakes and associated tsunamis, and (4) take steps to mitigate the possible consequences of a station blackout. How to use a word that (literally) drives some pe... Do you know these earlier meanings of words? Get a Britannica Premium subscription and gain access to exclusive content. Main purpose is to provide knowledge base not only for experienced. That percentage remained stable through the 1990s and began to decline slowly around the turn of the 21st century, primarily because of the fact that total electricity generation grew faster than electricity from nuclear power while other sources of energy (particularly coal and natural gas) were able to grow more quickly to meet the rising demand. Updates? Nuclearis used to refer to the nucleus of an atom, where the protons and neutrons are located. Newer Generation III designs, on the other hand, incorporate improved safety systems and rely more on so-called passive safety designs (i.e., directing cooling water by gravity rather than moving it by pumps) in order to keep the plants safe in the event of a severe accident or station blackout. Omissions? electrical or motive, produced by a nuclear reactor, (Also called) atomic power. What is Nuclear Power. Nuclear power is the use of sustained nuclear fission to generate heat and electricity. A nuclear power plant is a facility for obtaining electrical energy using nuclear energy. Nuclear power is a clean and efficient way of boiling water to make steam, which turns turbines to produce electricity. n power, esp. Nuclear power provides almost 15 percent of the world’s electricity. Except for the reactor, which plays the role of a boiler in a fossil-fuel power plant, a nuclear power plant is similar to a large coal-fired power plant, with pumps, valves, steam generators, turbines, electric generators, condensers, and associated equipment. n. 1. A nuclear power plant is a type of power station that generates electricity using heat from nuclear reactions.These reactions take place within a reactor.The plant also has machines which remove heat from the reactor to operate a steam turbine and generator to make electricity. A typical nuclear power plant has a generating capacity of approximately one gigawatt (GW; one billion watts) of electricity. Nuclear power Nuclear power is any method of doing work that makes use of nuclear fission or fusion reactions. The early period of the nuclear power industry was dominated by North America (the United States and Canada), but in the 1980s that lead was overtaken by Europe. The Energy Information Administration (EIA), a statistical arm of the U.S. Department of Energy, has projected that world electricity generation between 2005 and 2035 will roughly double (from more than 15,000 terawatt-hours to 35,000 terawatt-hours) and that generation from all energy sources except petroleum will continue to grow. Nuclear protects our air. The nuclear power industry went through a period of remarkable growth until about 1990, when the portion of electricity generated by nuclear power reached a high of 17 percent. A nuclear power plant is a thermal power station in which the heat source is a nuclear reactor.As is typical of thermal power stations, heat is used to generate steam that drives a steam turbine connected to a generator that produces electricity.As of 2018, the International Atomic Energy Agency reported there were 450 nuclear power reactors in operation in 30 countries. Nuclear decay processes are used in niche applications such as radioisotope thermoelectric generators. In a nuclear power plant, energy is generated from the splitting of the nuclei of uranium atoms. One method of releasing nuclear energy is by controlled nuclear fission, used in nuclear power plants around the world. Nuclear energy Nuclear Energy Agency (NEA) Nuclear force Nuclear fuel Nuclear Material Management and Safeguards System (NMMSS) Nuclear materials Nuclear poison (or neutron poison) Nuclear power plant Nuclear Radiological Incident Annex Nuclear reactor Nuclear steam supply system Nuclear waste Nucleon Nucleus Nuclide Learn about the use of nuclear power in Finland. As is typical in all conventional thermal power stations the heat is used to generate steam which drives a steam turbine connected to a generator which produces electricity. Page Last Reviewed/Updated Monday, August 24, 2020 The first nuclear power plants, which were small demonstration facilities, were built in the 1960s. Nuclear Power A form of energy produced by an atomic reaction, capable of producing an alternative source of electrical power to that supplied by coal, gas, or oil. Except for the reactor, which plays the role of a boiler in a fossil-fuel power plant, a nuclear power plant is similar to a large coal-fired power plant, with pumps, valves, steam generators, turbines, electric generators, condensers, and associated equipment. 'All Intensive Purposes' or 'All Intents and Purposes'? Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. a nuclear power plant. B2. relating to weapons, or the use of weapons, which use the power produced when the nucleus of an atom is divided or joined to another … nuclear power The electrical power generated by a nuclear reactor . Nuclear energy is energy in 'fissionable' elements like uranium that can be released by nuclear reactions in a machine called a nuclear reactor. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Nuclear energy is a very powerful type of energy. Nuclear energy helps developing nations meet sustainable development goals. In its broadest sense, the term refers both to the uncontrolled release of energy, as in fission or fusion weapons, and to the controlled release of energy, as in a nuclear power plant. The dropping of the atom bomb on Hiroshima, Japan, by the United States in 1945 initiated the atomic age. nuclear energy / power. Nuclear power plants use low-enriched uranium fuel to produce electricity through a process called fission—the splitting of uranium atoms in a nuclear reactor. Of the top 15 electricity-producing countries in the world, all but two, Italy and Australia, utilize nuclear power to generate some of their electricity. Atoms are the basic building blocks of matter. LWRs make up more than 80 percent of the world’s nuclear reactors, and more than three-quarters of the LWRs are PWRs. Low-enriched uranium (LEU): Uranium enriched to less than 20% U-235. This energy is made into electricity, which then can be used to power machines and heat homes. Slippery Words Quiz—Changing with the Times. Nuclear power definition is - energy that is created by splitting apart the nuclei of atoms. Nuclear power plants provide about 6% of the world's energy and 13–14% of the world's electricity, with the U.S., France, and Japan together accounting for about 50% of nuclear generated electricity. The safety of nuclear reactors has become paramount since the Fukushima accident of 2011. The energy that holds together the nucleus of an atom is called nuclear, or atomic, energy. Nitrogen oxide, sulfur dioxide, particulate matter and mercury: all things you don’t want in the air you breathe. 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