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...

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...

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

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

(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...

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...

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

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...

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

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...

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

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...

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

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

fill the reactor core, after which the reactor would cool down in around ten days. The injection of seawater into the reactor pressure vessel was done...

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...

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

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...

emergency condenser designed to cool the steam inside the pressure vessel of the No. 1 reactor fails. 15:35: A major wave arrives, exact height is unknown...

times, especially in the reactor vessel. To achieve this, the coolant in the reactor coolant system is maintained at a pressure sufficiently high that boiling...

100 MW or 25 MW. It is an integral reactor – the primary system coolant circuit is fully contained within the reactor vessel. The fuel is uranium oxide with...

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...

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

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...

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...