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The Reactor Protection System (RPS) is a system, computerized in later BWR models, that is designed to automatically, rapidly, and completely shut down and make safe the Nuclear Steam Supply System (NSSS – the reactor pressure vessel, pumps, and water/steam piping within the containment) if some event occurs that could result in the reactor entering an unsafe operating condition.
Date: png:16 March 2011; svg: 2011-04-07: Source: File:BWR Mark I Containment sketch with downcomers.png; source: . Sketched in Paint.net using 826 x 852 canvas inspired by Page 15 (pdf: 40), Containment Integrity Research at Sandia National Laboratories - An Overview, Manuscript completed: March 2006, Published: July 2006, id: NUREG/CR-6906 and SAND2006-2274P [1] - Prepared by Sandia National ...
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The Automatic Depressurization System (ADS) consists of a series of valves which open to vent steam several feet under the surface of a large pool of liquid water (known as the wetwell or torus) in pressure suppression type containments (typically used in boiling water reactor designs), or directly into the primary containment structure in ...
1 reactor vessel 2 fuel core element 3 control rod element 4 circulation pumps 5 control rod motors 6 steam 7 inlet circulation water 8 high pressure turbine 9 low pressure turbine 10 electric generator 11 electrical generator exciter 12 steam condenser 13 cold water for condenser 14 pre-warmer 15 water circulation pump
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The progenitor of the BWR line was the 5 MW Vallecitos Boiling Water Reactor (VBWR), brought online in October 1957. Six design iterations, BWR-1 through BWR-6, were introduced between 1955 and 1972. This was followed by the Advanced Boiling Water Reactor (ABWR) introduced in the 1990s and the Economic Simplified Boiling Water Reactor (ESBWR ...