A reactor pressure vessel (RPV) in a nuclear power plant is the pressure vessel containing the nuclear reactor coolant, core shroud, and the reactor core...

pumped under high pressure to the reactor core where it is heated by the energy released by the fission of atoms. The heated, high pressure water then flows...

Feedwater from the feedwater heaters enters the reactor pressure vessel (RPV) through nozzles high on the vessel, well above the top of the nuclear fuel assemblies...

headed by W. K. Ergen. Some fear that a molten reactor core could penetrate the reactor pressure vessel and containment structure and burn downwards to...

affected parts of the reactor, products of their chemical reaction with air, water, steam, and in the event that the reactor vessel is breached, molten...

A pressure vessel is a container designed to hold gases or liquids at a pressure substantially different from the ambient pressure. Construction methods...

Pressurized water reactors (PWR) [moderator: high-pressure water; coolant: high-pressure water] These reactors use a pressure vessel to contain the nuclear...

The ASME Boiler & Pressure Vessel Code (BPVC) is an American Society of Mechanical Engineers (ASME) standard that regulates the design and construction...

in pressurized water reactor designs). The actuation of these valves depressurizes the reactor vessel and allows lower pressure coolant injection systems...

(NSSS – the reactor pressure vessel, pumps, and water/steam piping within the containment) if some event occurs that could result in the reactor entering...

simultaneously reducing overall reactor cost. It also uses natural circulation to drive coolant flow within the reactor pressure vessel (RPV); this results in...

supercritical water reactor (SCWR) is a concept Generation IV reactor, designed as a light water reactor (LWR) that operates at supercritical pressure (i.e. greater...

1970s, the other being the VVER reactor. The name refers to its design where instead of a large steel pressure vessel surrounding the entire core, the...

neutron bombardment, though the reactor vessel is. A low-pressure MSR does not require an expensive, steel core containment vessel, piping, and safety equipment...

long term fuel efficiency. Long-term integrity of the compact reactor pressure vessel is maintained by providing an internal neutron shield. (This is...

pump to inject water into the pressure vessel from an external storage tank to maintain the water level in the reactor vessel and was designed to operate...

infrastructure, however, so nearly all nuclear-powered vessels are military. Most naval nuclear reactors are of the pressurized water type, with the exception...

80 minutes with a growing steam bubble in the reactor pressure vessel head, the primary loop's four main reactor coolant pumps began to cavitate as a steam...

architecture was designed by ASEA-Atom. The reactor pressure vessels were constructed by Uddcomb Sweden AB, and reactor internal parts, mechanical components...

prior to complete overhaul and reactor pressure vessel replacement) compared with currently used Generation II reactors (designed for 40 years of operation...

France. The reactor pressure vessel of the first reactor was installed in June 2012, and the second in November 2014. The first pressure vessel had been...

Retrieved 2006-06-24. Duerr, David (March 1990). "Lift of Shippingport Reactor Pressure Vessel". Journal of Construction Engineering and Management. 116 (1):...

A pressure reactor, sometimes referred to as a pressure tube, or a sealed tube, is a chemical reaction vessel which can conduct a reaction under pressure...

of the major limiting wear factors is the deterioration of the reactor's pressure vessel under the action of neutron bombardment, however in 2018 Rosatom...

reactor pressure vessels for small modular reactors, with enormous savings in time and costs over arc welding. Using arc welding on pressure vessels requires...

embrittlement limits the service life of reactor-pressure vessels (RPV) in nuclear power plants due to the degradation of reactor materials. In order to perform...

chemical reactor is an enclosed volume in which a chemical reaction takes place. In chemical engineering, it is generally understood to be a process vessel used...

coolant pumps are all located within the reactor pressure vessel. This causes it to have a larger pressure vessel than an ordinary PWR despite a lower power...

October 2015 that two independent sources have confirmed that the reactor 1 pressure vessel contains around 1,000 cavities of half a centimetre in diameter...

1002/2016JD025445. PMC 5349290. PMID 28357174. Nuclear Power Plant Borssele Reactor Pressure Vessel Safety Assessment, p. 29, 5.6 Neutron Fluence Calculation....