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It works by pumping water to the steam generators from reserve tanks or a larger body of water (e.g. lake, river, or ocean) to remove decay heat from the reactor by dumping non-radioactive steam to atmosphere or using this steam to drive turbine driven auxiliary feedwater pump(s). The auxiliary feedwater system in PWRs are often equipped with ...
The System 80+ was developed into the Korean OPR-1000 and later APR-1400, [3] and contributed design features to the AP1000. [4] The NRC has certified the System 80+ for the U.S. market, but Westinghouse ceased actively promoting the design for domestic sale, prior to their bankruptcy. [5]
The Systems Nuclear Auxiliary POWER (SNAP) program was a program of experimental radioisotope thermoelectric generators (RTGs) and space nuclear reactors flown during the 1960s by NASA. The SNAP program developed as a result of Project Feedback, a Rand Corporation study of reconnaissance satellites completed in 1954. [ 1 ]
The coolant (treated water), which is maintained at high pressure to prevent boiling, is pumped through the nuclear reactor core. Heat transfer takes place between the reactor core and the circulating water and the coolant is then pumped through the primary tube side of the steam generator by coolant pumps before returning to the reactor core.
Nuclear Pumped Lasers. M. Prelas bibliography; Application of reactor-pumped lasers to power beaming, Repetti, T.E 1991. Pulse reactor system for nuclear-pumped laser using low-enriched uranium. Obara, Takezawa. Energy Conversion and Management Volume 49, Issue 7, July 2008, 13th International Conference on Emerging Nuclear Energy Systems
Diagram of an RTG used on the Cassini probe. A radioisotope thermoelectric generator (RTG, RITEG), sometimes referred to as a radioisotope power system (RPS), is a type of nuclear battery that uses an array of thermocouples to convert the heat released by the decay of a suitable radioactive material into electricity by the Seebeck effect.
IMSR Core-unit, primary containment and silo. This cut-away view shows the internals of the IMSR Core-unit, the containment and the surrounding structural silo. The Core-unit is a sealed reactor vessel that contains the graphite moderator (shown in white), primary fuel salt, and primary heat exchangers and pumps (shown in blue).
In 1959 the US Navy removed a nuclear reactor from the submarine USS Seawolf and replaced it with a new type. The removed reactor was scuttled in the Atlantic Ocean , 200 km (108 nmi) east of Delaware , at a depth of 2,700 m (8,858 ft). [ 10 ]