light-water reactor — noun A reactor using normal water as moderator and coolant (abbrev LWR) • • • Main Entry: ↑light … Useful english dictionary
Light water reactor — LWR redirects here. See also: LWR (disambiguation) A light water reactor or LWR is a thermal nuclear reactor that uses ordinary water, also called light water, as its neutron moderator. This differentiates it from a heavy water reactor, which… … Wikipedia
Light water reactor — (LWR) A nuclear reactor that uses water as the primary coolant and moderator, with slightly enriched uranium as fuel. U.S. Dept. of Energy, Energy Information Administration s Energy Glossary *** A nuclear power unit that uses ordinary… … Energy terms
Water — This article is about general aspects of water. For a detailed discussion of its properties, see Properties of water. For other uses, see Water (disambiguation) … Wikipedia
Water pollution — Raw sewage and industrial waste flows across international borders New River passes from Mexicali to Calexico, California. Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans and groundwater). Water p … Wikipedia
Boiling water reactor — A boiling water reactor (BWR) is a type of nuclear reactor developed by the General Electric in the mid 1950s.Fact|date=April 2008 The BWR is characterized by two phase fluid flow (water and steam) in the upper part of the reactor core. See… … Wikipedia
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
Nuclear reactor coolant — Nuclear reactor coolants Coolant Melting point Boiling point Light water at 155 bar 345 °C Mercury 38.83 °C 356.73 °C NaK eutectic 11 °C 785 °C Sodium 97.72 °C 883 °C … Wikipedia
Loss of coolant accident — A loss of coolant accident (LOCA) is a mode of failure for a nuclear reactor; if not managed effectively, the results of a LOCA could result in reactor core damage. Each nuclear plant s Emergency Core Cooling System (ECCS) exists specifically to… … 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
Heavy water — Not to be confused with hard water or tritiated water. Deuterium oxide IUPAC name … Wikipedia
