Advanced Pressurized Water Reactor

Fig. 36. Site plan for the advanced pressurized water reactor (PWR). (Westing-house Electric Corporation, Energy Systems)...

Westinghouse Advanced Pressurized Water Reactor (APWR) System 80+ standard plant design approved in July 1994 and certified in May 1997... 

Men et al. (2014) have conducted experiments on the natural convection heat transfer for a PRHRS HEX in an in-containment refueling water storage tank. Several empirical correlations for the forced convection flow internal to the HEX tube and the natural convection heat transfer outside of the tube in the tank, for the vertical and horizontal portion of the tube, were compared with experimental data. The Dittus-Boelter forced convection correlation and the McAdams correlations for natural convection proved to give the better model of the data. Wenbin et al. (2014) have conducted experiments for the secondary loop of the Chinese Advance Pressurized Water Reactor for validation of the MIS AP20 models and code. These and other papers are in a special issue of the Science and Technology of Nuclear Installations journal published in 2014 as indicated by the cited references. 

CAPWR Chinese Advance Pressurized Water Reactor... 

LEE, S.W., et al.. Assessment of passive containment cooling concepts for advanced pressurized water reactors, Ann. Nucl. Energy 24 6 (1997) 467-475. 

High-pressure water electrolysis (HPE) Advanced light water reactor (ALWR) Yes... 

After an initial failed attempt to privatize nuclear power with the rest of the British electricity industry in 1990, the government put the nuclear stations into two state-owned companies. Nuclear Electric for the English and Welsh stations, and Scottish Nuclear for the Scottish stations. In 1995 the more modern advanced gas cooled reactor (AGR) stations plus the new pressurized water reactor (PWR) at Sizewell were privatized in the form of a new company, British Energy pic. The older Magnox reactors were retained in a company called Magnox Electric. 

SMART (System-integrated Modular Advanced ReacTor) is an advanced integral PWR(Pressurized Water Reactor) tihat produces 330MWt at fiill power. Major primary components are housed within a single pressure vessel. New, advanced and innovative features are incorporated in the design to provide the reactor with significant enhancements in safety, reliability, performance, and operability. Major design and safety characteristics of SMART can be summarized as follows ... 

Alexander D E and Rehn L E (1994b), Gamma-ray displacement damage in the pressure vessel of the advanced boiling water reactor , J Nucl Mater, 217,... 

OJB. Samoylov, Advanced Passive Pressurized Water Reactors of Small and Medium Capacity - Russian Approach, proceedings of the 9th Pacific Basin Nuclear Conference, Sydney, Australia, 1994 May 01-06, pp. 265-270. 

A variety of fuel elanents are used for different types of reactors, but there are some common features. In most conunercial nnclear power plants (BWR [boiling water reactors] and PWR [pressurized water reactors] that are called in Russian VVER), the pellets are inserted into rods or tubes (usually zirconium alloys) that provide a barrier to prevent escape of fission products, the tubes or rods are arranged in bundles that are loaded into the reactor core. Usually a number of short rods are inserted into the sealed tube and held in place by a spring as described earlier. In some cases, like advanced gas cooled reactors (AGR), peUets are inserted into short narrow steel pins. Magnox reactors use magnesium alloys (usually with aluminum) rather the zirconium alloys. The fuel in some advanced reactors (TRISO) is in the form of microfuel particles with a UO2 (or UC (uranium carbide)) core surrounded by layers of pyrolytic carbon and... 

A preconceptual plant design with 1700 M W net electric power based on a pressure vessel-type reactor has been studied by Yamada et al. (2011) and has been assessed with respect to efficiency, safety, and cost. The study confirms the target net efficiency of 44% and estimates a cost reduction potential of 30% compared with current pressurized water reactors. Safety features are expected to be similar to advanced boiling water reactors. 

ABWR, advanced boiling water reactor NRC US Nuclear Regulatory Commission BWR, boiling water reactor FWR, pressurized water reactor GT-MHR, gas turbine modular helium-cooled reactor PBMR, pebble bed modular reactor. 

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