Sodium-water reaction (SWR) is a design basis accident of a Sodium Fast Reactor (SFR). A breach of the heat transfer tube in a steam generator (SG) results in contact of liquid sodium with water. Typical phenomenon is that the pressurized water blows off, vaporizes and mixes with the liquid sodium. The consequence of the accident are: thermal-hydraulic and chemical impact on the heat transport equipment and structure induced by the heat of exothermic reaction and caustic reaction product. The purpose of the present paper is to delineate the mechanism and process of the SWR by a counter-flow diffusion flame experiment and a numerical simulation. Based on the numerical simulation, the most appropriate and optimum condition in which stable and continuous diffusion flame of sodium and water vapor is obtained. Key idea is to perform the experiment in a depressurized reaction vessel. According to the experiment, spatial distributions of chemical reactants and products, temperature and particles are measured in detail. The characteristics of the SWR are explained from the present study and the chemical reaction model currently used in the analytical tool of the SWR is appropriate.
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18th International Conference on Nuclear Engineering
May 17–21, 2010
Xi’an, China
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-4932-3
PROCEEDINGS PAPER
Sodium-Water Reaction Elucidation With Counter-Flow Diffusion Flame Experiment and Its Numerical Simulation
Akira Yamaguchi,
Akira Yamaguchi
Osaka University, Suita, Osaka, Japan
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Takashi Takata,
Takashi Takata
Osaka University, Suita, Osaka, Japan
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Hiroyuki Ohshima,
Hiroyuki Ohshima
Japan Atomic Energy Agency, O-arai, Ibaraki, Japan
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Joji Sogabe,
Joji Sogabe
Osaka University, Suita, Osaka, Japan
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Yoshihiro Deguchi,
Yoshihiro Deguchi
Mitsubishi Heavy Industry, Nagasaki, Nagasaki, Japan
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Shin Kikuchi
Shin Kikuchi
Japan Atomic Energy Agency, O-arai, Ibaraki, Japan
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Akira Yamaguchi
Osaka University, Suita, Osaka, Japan
Takashi Takata
Osaka University, Suita, Osaka, Japan
Hiroyuki Ohshima
Japan Atomic Energy Agency, O-arai, Ibaraki, Japan
Joji Sogabe
Osaka University, Suita, Osaka, Japan
Yoshihiro Deguchi
Mitsubishi Heavy Industry, Nagasaki, Nagasaki, Japan
Shin Kikuchi
Japan Atomic Energy Agency, O-arai, Ibaraki, Japan
Paper No:
ICONE18-30217, pp. 1185-1192; 8 pages
Published Online:
April 8, 2011
Citation
Yamaguchi, A, Takata, T, Ohshima, H, Sogabe, J, Deguchi, Y, & Kikuchi, S. "Sodium-Water Reaction Elucidation With Counter-Flow Diffusion Flame Experiment and Its Numerical Simulation." Proceedings of the 18th International Conference on Nuclear Engineering. 18th International Conference on Nuclear Engineering: Volume 4, Parts A and B. Xi’an, China. May 17–21, 2010. pp. 1185-1192. ASME. https://doi.org/10.1115/ICONE18-30217
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