recirculation of water

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• Water heating — is a thermodynamic process using an energy source to heat water above its initial temperature. Typical domestic uses of hot water are for cooking, cleaning, bathing, and space heating. In industry, both hot water and water heated to steam have… …   Wikipedia

• Recirculation Systems —   A type of solar heating system that circulate warm water from storage through the collectors and exposed piping whenever freezing conditions occur; obviously a not very efficient system when operating in this mode …   Energy terms

• Deep water culture — (DWC) is a hydroponic method of plant production by means of suspending the plant roots in a solution of nutrient rich, oxygenated water. Bubbleponics is a related method of plant production that involves a top fed Deep Water Culture system. A… …   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

• Advanced Boiling Water Reactor — The Advanced Boiling Water Reactor (ABWR) is a Generation III reactor boiling water reactor. The ABWR was designed by General Electric. The standard ABWR plant design has a net output of about 1350 MWe, however General Electric Hitachi (GEH)has… …   Wikipedia

• Exhaust gas recirculation — (EGR) is a nitrogen oxide (NOx) emissions reduction technique used in most gasoline and diesel engines.EGR works by recirculating a portion of an engine s exhaust gas back to the engine cylinders. Intermixing the incoming air with recirculated… …   Wikipedia

• North Atlantic Deep Water — (NADW) is a water mass that forms in the North Atlantic Ocean. It is largely formed in the Labrador Sea and in the Greenland Sea by the sinking of highly saline, dense overflow water from the Greenland Sea. The watermass can be traced around the… …   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

• Economic Simplified Boiling Water Reactor — The reactor formally known as Economic Simplified Boiling Water Reactor (ESBWR) is a passively safe generation III+ reactor which builds on the success of the ABWR. Both are designs by General Electric, and are based on their BWR design.The ESBWR …   Wikipedia

• Orbiting Frog Otolith — A bullfrog (Rana catesbeiana), the species which travelled on the OFO A flight The Orbiting Frog Otolith (OFO) spacecraft …   Wikipedia

• Aquaponics — (IPA: /ˈækwəˈpɒnɪks/) is the symbiotic cultivation of plants and aquatic animals in a recirculating environment. Alternate definition: An integrated hydroponics (growing plants in water) and aquaculture (growing fish) system.Aquatic animal… …   Wikipedia