Experimental study of sodium fire and its characteristics under the coupling action of columnar liquid sodium flow and concrete

Yan Huo; Gao-Wan Zou; Hui Dong; Jian-Fu Lv; Jian He

doi:https://doi.org/10.1016/j.net.2021.03.011

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자료유형: 학술저널

저자정보: Yan Huo (Harbin Engineering University) Gao-Wan Zou (Harbin Engineering University) Hui Dong (Harbin Engineering University) Jian-Fu Lv (Harbin Engineering University) Jian He (Harbin Engineering University)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제9호

발행연도: 2021.9

수록면: 2,866 - 2,877 (12page)

DOI: https://doi.org/10.1016/j.net.2021.03.011

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연구주제

📖

연구배경

🔬

연구방법

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The complex coupling relationship between liquid sodium and concrete materials affects both the sodiumfire characteristics and concrete properties through heat and chemical erosion. In this study, experimentson direct and indirect (separated by a steel plate) contact of the columnar sodium fire with theconcrete surface were performed. It was found that the combustion efficiency of liquid sodium in directcontact with concrete was significantly enhanced and accompanied by intermittent explosions andsplashing of small concrete fragments. The sodium fire on the surface of the concrete considerablyincreased the internal temperature, pore size, and distribution density of the concrete. In addition, thedepth of influence on the loosening of the concrete structure was also greatly extended. The contact ofliquid sodium with the concrete substantially affected its permeability resistance. The water absorptionof the concrete surface was increased by more than 70% when liquid sodium directly impacted the bareconcrete surface. However, the change in water absorption in the centre of the concrete was primarilyaffected by the duration of the external heat

#Liquid sodium #Concrete #Heat flow field #Sodium fire #Thermo-chemical degradation

참고문헌 (5)

참고문헌 신청

W.T. Shi / 2014 / Theoretical analysis and experiment design for single sodium droplet's combustion / Nucl. Sci. Eng 34(2):151~155

Z.G. Zhang / 2014 / Experimental study on combustion characteristics of sodium fire in a columnar flow / J. Nucl. Sci. Technol 51(2):166~174

Z.G. Zhang / 2015 / Experiment study on oxidation and combustion characteristics of sodium droplets / Atom. Energy Sci. Technol 49(4):667~673

Y. Huo / 2017 / Experimental study on combustion and suppression characteristics of sodium fire in a columnar flow using extinguishing powder / J. Nucl. Sci. Technol 54(6):716~723

Bin Zhang / 2006 / Simulation of chemical kinetics in sodium-concrete interations / Nucl. Sci. Tech 17(1):53~60

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