Reduced moderation water reactor
- Reduced moderation water reactor
The reduced moderation water reactor (RMWR) is a proposed type of light water moderated nuclear power reactor, featuring some characteristics of a fast neutron reactor. As of 2007 it is under active development in theoretical studies, particularly in Japan.
Even in generation II PWRs, the neutron spectrum is not fully thermalised. The goal of RMWR research is to depart further from the thermal neutron spectrum in order to achieve a breeder ratio of slightly greater than 1, so that after the initial fuel charge no enrichment of the uranium input to the fuel cycle is required.
The RMWR concept is dependent on nuclear fuel reprocessing in order to achieve its objectives.
ee also
* Supercritical water reactor, a similar and perhaps even overlapping concept.
External links
* [http://www3.inspi.ufl.edu/icapp/program/abstracts/1030.html "Core and System Design of Reduced-Moderation Water Reactor with Passive Safety Features"] , paper with good introductory remarks on the type.
* [http://ciscpyon.tokai-sc.jaea.go.jp/english/research/re02.html Image] of an RMWR.
Wikimedia Foundation.
2010.
Look at other dictionaries:
Pressurized water reactor — (PWRs) (also VVER if of Russian design) are generation II nuclear power reactors that use ordinary water under high pressure (superheated water) as coolant and neutron moderator. The primary coolant loop is kept under high pressure to prevent the … Wikipedia
Supercritical water reactor — The Supercritical water reactor (SCWR) is a Generation IV reactor concept that uses supercritical water as the working fluid. SCWRs are basically LWRs operating at higher pressure and temperatures with a direct, once through cycle. As most… … Wikipedia
Boiling water reactor — A boiling water reactor (BWR) is a type of nuclear reactor developed by the General Electric in the mid 1950s.Fact|date=April 2008 The BWR is characterized by two phase fluid flow (water and steam) in the upper part of the reactor core. See… … Wikipedia
Breeder reactor — Assembly of the core of Experimental Breeder Reactor I in Idaho, 1951 A breeder reactor is a nuclear reactor that generates more fissile material in fuel than it consumes.[1] These reactors are considered appealing due to their superior fuel… … Wikipedia
CANDU reactor — The CANDU reactor is a Canadian invented, pressurized heavy water reactor developed initially in the late 1950s and 1960s by a partnership between Atomic Energy of Canada Limited (AECL), the Hydro Electric Power Commission of Ontario (now known… … Wikipedia
Nuclear reactor physics — See also: Critical mass Nuclear reactor physics is the branch of science that deals with the study and application of chain reaction to induce controlled rate of fission for energy in reactors. Most nuclear reactors use a chain reaction to induce … Wikipedia
Nuclear reactor — Core of CROCUS, a small nuclear reactor used for research at the EPFL in Switzerland This article is a subarticle of Nuclear power. A nuclear reactor is a device to initiate and control a sustained nuclear chain reaction. Most commonly they are… … Wikipedia
Nuclear reactor technology — This article is a subarticle of Nuclear power .A nuclear reactor is a device in which nuclear chain reactions are initiated, controlled, and sustained at a steady rate, as opposed to a nuclear bomb, in which the chain reaction occurs in a… … Wikipedia
Organically moderated and cooled reactor — The organic moderated and cooled reactor (OCR) was an early power reactor concept studied in the formative years of nuclear power by the United States Atomic Energy Commission and others around the world. The concept reactor was very similar to… … Wikipedia
Neutron moderator — Currently operating nuclear power reactors by moderator Moderator Reactors Design Country none (fast) 1 BN 600 Russia (1) graphite 29 AGR, Magnox, RBMK United Kingdom (18), Russia (11) heavy water 29 CANDU … Wikipedia
