Behavior characteristics of hydrogen and its isotope in molten salt of LiF-NaF-KF (FLiNaK)

Youshi Zeng; Wenguan Liu; Wei Liu; Yuan Qian; Nan Qian; Xiaoling Wu; Yu Huang; Shengwei Wu; Guanghua Wang

Nuclear Engineering and Technology (Apr 2019)

Behavior characteristics of hydrogen and its isotope in molten salt of LiF-NaF-KF (FLiNaK)

Youshi Zeng,
Wenguan Liu,
Wei Liu,
Yuan Qian,
Nan Qian,
Xiaoling Wu,
Yu Huang,
Shengwei Wu,
Guanghua Wang

Affiliations

Youshi Zeng: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
Wenguan Liu: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
Wei Liu: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
Yuan Qian: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
Nan Qian: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
Xiaoling Wu: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
Yu Huang: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
Shengwei Wu: Corresponding author.; Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
Guanghua Wang: Corresponding author.; Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China

Journal volume & issue: Vol. 51, no. 2
pp. 490 – 494

Abstract

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Experimental studies to investigate the behaviors of hydrogen in molten FLiNaK (LiF-NaF-KF) have been conducted at 500–700 °C. On the basis of previous studies, the diffusivity and solubility of hydrogen in FLiNaK have been revised, and the expressions can be correlated to the following Arrhenius equations: DH2 = 1.62 × 10−5exp (−48.20 × 103/Rg·T) [m2/s] and SH2 = 1.03 × 10−4exp (−14.96 × 103/Rg·T) [mol-H2/m3/Pa], respectively. The behavior characteristics of deuterium in FLiNaK were studied and compared with the hydrogen behaviors in FLiNaK. The results showed the behaviors of deuterium were consistence with the behaviors of hydrogen in FLiNaK. The difference between hydrogen and deuterium has not been observed upon the experimental research of the behavior characteristics of hydrogen and deuterium in FLiNaK, which suggested the results obtained here might apply equally to the behavior characteristics of tritium in FLiNaK. Keywords: Hydrogen, Deuterium, Molten FLiNaK, Diffusion, Permeation

Published in Nuclear Engineering and Technology

ISSN: 1738-5733 (Print)
Publisher: Elsevier
Country of publisher: Korea, Republic of
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Nuclear engineering. Atomic power
Website: http://www.journals.elsevier.com/nuclear-engineering-and-technology

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