nuclear reactor — Physics. reactor (def. 4). Also called nuclear pile. [1940 45] * * * Device that can initiate and control a self sustaining series of nuclear fission reactions. Neutrons released in one fission reaction may strike other heavy nuclei, causing them … Universalium
Pressurized water reactor — (PWRs) (also VVER if of Russian design) are generation II nuclear power reactors that use ordinary water under high pressure (superheated water) as coolant and neutron moderator. The primary coolant loop is kept under high pressure to prevent the … Wikipedia
CANDU reactor — The CANDU reactor is a Canadian invented, pressurized heavy water reactor developed initially in the late 1950s and 1960s by a partnership between Atomic Energy of Canada Limited (AECL), the Hydro Electric Power Commission of Ontario (now known… … Wikipedia
fusion reactor — Physics. a reactor for producing atomic energy by nuclear fusion. Cf. reactor (def. 4). * * * Introduction also called fusion power plant or thermonuclear reactor a device to produce electrical power from the energy released in a nuclear… … Universalium
Nuclear reactor safety systems — This article covers the technical aspects of active nuclear safety systems. For a general approach to nuclear safety, see nuclear safety. The three primary objectives of nuclear reactor safety systems as defined by the Nuclear Regulatory… … Wikipedia
Supercritical water reactor — The Supercritical water reactor (SCWR) is a Generation IV reactor concept that uses supercritical water as the working fluid. SCWRs are basically LWRs operating at higher pressure and temperatures with a direct, once through cycle. As most… … Wikipedia
nuclear reactor — noun (physics) any of several kinds of apparatus that maintain and control a nuclear reaction for the production of energy or artificial elements • Syn: ↑reactor • Topics: ↑physics, ↑natural philosophy • Hypernyms: ↑apparatus, ↑ … Useful english dictionary
Pressurised heavy water reactor — A pressurised heavy water reactor (PHWR) is a nuclear power reactor, commonly using unenriched natural uranium as its fuel, that uses heavy water (deuterium oxide D2O) as its coolant and moderator. The heavy water coolant is kept under pressure… … Wikipedia
Clean And Environmentally Safe Advanced Reactor — Disputed Science: CAESAR nuclear reactor Disciplines: Nuclear engineering; Nuclear technology; Nuclear physics Core Tenets: Self sustained fissioning of Uranium 238 can be accomplished via steam moderated neutrons Year Proposed: 1998 Original… … Wikipedia
Generation III reactor — A generation III reactor is a development of any of the generation II nuclear reactor designs incorporating evolutionary improvements in design which have been developed during the lifetime of the generation II reactor designs, such as improved… … Wikipedia
nuclear reactor — uclear reactor n. (phys.) Any of several devices that maintain and control a sustained nuclear fission chain reaction, for the production of energy, heat, or artificial elements, or for research purposes. The main fuel sustaining the reaction and … The Collaborative International Dictionary of English
