Title: Natural Circulation Phenomena and Modelling for Advanced Water Cooled Reactors
Authors: AKSAN NBOLADO LAVIN RicardoBURGAZZI L.CHOI J HCHUNG Y JD'AURIA F.DE LA ROSA J CGIMENEZ M OISHII MKHARTABIL HKOROTAEV KKREPPER EMARQUES MichelMATEJOVIC PREYES J NSAHA DSIBAMOTO YTEHRANI AWILLIAMS BWOODS B
Publisher: IAEA
Publication Year: 2012
JRC N°: JRC77219
ISBN: 978-92-0-127410-6
ISSN: 1011-4289
URI: http://www-pub.iaea.org/MTCD/Publications/PDF/TE-1677_web.pdf
http://publications.jrc.ec.europa.eu/repository/handle/JRC77219
Type: Books
Abstract: The role of natural circulation in advanced water cooled reactor design has been extended with the adoption of passive safety systems. Some designs utilize natural circulation to remove core heat during normal operation. Most passive safety systems used in evolutionary and innovative water cooled reactor designs are driven by natural circulation. The use of passive systems based on natural circulation can eliminate the costs associated with the installation, maintenance and operation of active systems that require multiple pumps with independent and redundant electric power supplies. However, considering the weak driving forces of passive systems based on natural circulation, careful design and analysis methods must be employed to ensure that the systems perform their intended functions. Several IAEA Member States with advanced reactor development programmes are actively conducting investigations of natural circulation to support the development of advanced water cooled reactor designs with passive safety systems. To foster international collaboration on the enabling technology of passive systems that utilize natural circulation, in 2004 the IAEA initiated a coordinated research project (CRP) on Natural Circulation Phenomena, Modelling and Reliability of Passive Systems that Utilize Natural Circulation. Three reports were published within the framework of this CRP. The first report (IAEA-TECDOC-1474) contains the material developed for the first IAEA training course on natural circulation in water cooled nuclear power plants. The second report (IAEA-TECDOC-1624) describes passive safety systems in a wide range of advanced water cooled nuclear power plant designs, with the goal of gaining insights into system design, operation and reliability. This third, and last, report summarizes the research studies completed by participating institutes during the CRP period. The IAEA appreciates the contributions of N. Aksan, chairperson of the CRP, and of the chief scientific investigators from all CRP participating institutes. The IAEA officer responsible for this publication was J.H. Choi of the Division of Nuclear Power.
JRC Directorate:Energy, Transport and Climate

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