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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 ...
System 80 is a pressurized water reactor design by Combustion Engineering (which was subsequently bought by Asea Brown Boveri and eventually merged into the Westinghouse Electric Company). Three System 80 reactors were built at Palo Verde Nuclear Generating Station .
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.
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 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 inadvertant criticality.
The pressurized water reactor nuclear steam supply system (NSSS) for WNP-1 and -4 was being manufactured by Babcock & Wilcox. The B&W 205 design was ordered for WNP-1 and -4 as well as for the two units at Bellefonte Nuclear Generating Station and Mülheim-Kärlich Nuclear Plant [ de ] , but only Mülheim-Kärlich was completed.
The reactor is designed to operate for 33 years without refueling. [ 1 ] [ 2 ] This naval nuclear reactor is estimated to generate 210 megawatts (MWt) [ 3 ] driving a 30 MW pump-jet propulsion system built by BAE Systems that was designed for the Royal Navy [ 4 ] and entered service on the second Trafalgar -class submarine , also featured on ...
Reactor Fuel Assemblies: 257 Reactor Fuel: Advanced 17x17, 14 ft. Active Core Length: 4.2 meters Coolant System Loops: 4 Coolant Flow: 7.64 m 3 /s/loop Coolant Pressure: 15.5 MPa Steam Generator Type: 90TT-1 Number of Steam Generators: 4 Reactor Coolant Pump Type: 100A Number of Reactor Coolant Pumps: 4 Reactor Coolant Pump Motor Output: 6 MWe