HTGR Dust Safety Issues and Needs for Research and Development

Paul W. Humrickhouse

关键词: ABRASION;    ADSORPTION ISOTHERMS;    AFFINITY;    CHEMICAL REACTIONS;    COOLANTS;    DUSTS;    FISSION PRODUCTS;    FUEL ELEMENTS;    GAS COOLED REACTORS;    GRAPHITE;    REACTOR SAFETY;    SAFETY;    TRANSPORT;    INEEL Dust;    Gas Reactor;    Graphite;    VHTR;   

DOI  :  10.2172/1023483
RP-ID  :  INL/EXT-11-21097
PID  :  OSTI ID: 1023483
Others  :  TRN: US1104591

美国|英语

来源: SciTech Connect

【 摘 要 】

This report presents a summary of high temperature gas-cooled reactor dust safety issues. It draws upon a literature review and the proceedings of the Very High Temperature Reactor Dust Assessment Meeting held in Rockville, MD in March 2011 to identify and prioritize the phenomena and issues that characterize the effect of carbonaceous dust on high temperature reactor safety. It reflects the work and input of approximately 40 participants from the U.S. Department of Energy and its National Labs, the U.S. Nuclear Regulatory Commission, industry, academia, and international nuclear research organizations on the topics of dust generation and characterization, transport, fission product interactions, and chemical reactions. The meeting was organized by the Idaho National Laboratory under the auspices of the Next Generation Nuclear Plant Project, with support from the U.S. Nuclear Regulatory Commission. Information gleaned from the report and related meetings will be used to enhance the fuel, graphite, and methods technical program plans that guide research and development under the Next Generation Nuclear Plant Project. Based on meeting discussions and presentations, major research and development needs include: generating adsorption isotherms for fission products that display an affinity for dust, investigating the formation and properties of carbonaceous crust on the inside of high temperature reactor coolant pipes, and confirming the predominant source of dust as abrasion between fuel spheres and the fuel handling system.