TY - JOUR
T1 - Elementary reaction analysis on sodium-water chemical reaction field
AU - Deguchi, Yoshihiro
AU - Imanaka, Koichi
AU - Takata, Takashi
AU - Yamaguchi, Akira
AU - Kikuchi, Shin
AU - Ohshima, Hiroyuki
PY - 2012
Y1 - 2012
N2 - In a sodium-cooled fast reactor (SFR), liquid sodium is used as a heat transfer fluid because of its excellent heat transport capability. On the other hand, it has strong chemical reactivity with water vapor. One of the design basis accidents of the SFR is the water leakage into the liquid sodium flow by a breach of heat transfer tubes. This process ends up damages on the heat transport equipment in the SFR. Therefore, the study on sodium-water chemical reactions is of paramount importance for security reasons. This study aims to clarify the sodium-water reaction mechanisms using an elementary reaction analysis. A quasi one-dimensional flame model is applied to a sodium-water counter-flow reaction field. The analysis contains 25 elementary reactions, which consist of 17 H 2-O 2 and 8 Na-H 2O reactions. Temperature and species concentrations in the counter-flow reaction field were measured using laser diagnostics such as LIF and CARS. The main reaction in the experimental conditions is Na+H 2O→NaOH+H, and OH is produced by H 2→+H→H 2+OH. It was demonstrated that the reaction model in this study well explains the structure of the sodium-water counter-flow diffusion flame.
AB - In a sodium-cooled fast reactor (SFR), liquid sodium is used as a heat transfer fluid because of its excellent heat transport capability. On the other hand, it has strong chemical reactivity with water vapor. One of the design basis accidents of the SFR is the water leakage into the liquid sodium flow by a breach of heat transfer tubes. This process ends up damages on the heat transport equipment in the SFR. Therefore, the study on sodium-water chemical reactions is of paramount importance for security reasons. This study aims to clarify the sodium-water reaction mechanisms using an elementary reaction analysis. A quasi one-dimensional flame model is applied to a sodium-water counter-flow reaction field. The analysis contains 25 elementary reactions, which consist of 17 H 2-O 2 and 8 Na-H 2O reactions. Temperature and species concentrations in the counter-flow reaction field were measured using laser diagnostics such as LIF and CARS. The main reaction in the experimental conditions is Na+H 2O→NaOH+H, and OH is produced by H 2→+H→H 2+OH. It was demonstrated that the reaction model in this study well explains the structure of the sodium-water counter-flow diffusion flame.
KW - Sodium fast reactor
KW - Sodium-water elemental reaction
UR - https://www.scopus.com/pages/publications/84859569616
U2 - 10.1299/kikaib.78.480
DO - 10.1299/kikaib.78.480
M3 - 文章
AN - SCOPUS:84859569616
SN - 0387-5016
VL - 78
SP - 480
EP - 484
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
IS - 787
ER -