氢在FLiNaK(LiF-NaF-KF)熔盐中的渗透行为

doi:10.11889/j.0253-3219.2015.hjs.38.020603

Nuclear Techniques ›› 2015, Vol. 38 ›› Issue (2): 20603-020603.doi: 10.11889/j.0253-3219.2015.hjs.38.020603

• NUCLEAR ENERGY SCIENCE AND ENGINEERING • Previous Articles Next Articles

Permeability of hydrogen in molten salt FLiNaK(LiF-NaF-KF)

ZENG Youshi1,2,3 DU Lin1,2,3 PI Li1,2,3 WU Shengwei1,2 QIAN Yuan1,2 WANG Guanghua1,2 HUANG Yu1,2 ZHU Haiyun1,2 LIU Wei1,2

1(Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading Campus, Shanghai 201800, China) 2(Key Laboratory of Nuclear Radiation and Nuclear Energy Technology, Chinese Academy of Sciences, Shanghai 201800, China) 3(University of Chinese Academy of Sciences, Beijing 100049, China)

Received:2014-09-22 Revised:2014-10-21 Online:2015-02-10 Published:2015-02-02
Contact: Wei Liu E-mail:liuwei@sinap.ac.cn

Abstract

Abstract:

Background: Molten salt FLiNaK(LiF-NaF-KF) has potential to be used as heat-transfer fluid of molten salt nuclear reactor, because of its high chemical stability, moderate specific heat and sufficient thermal conductivity. One adverse characteristic was that tritium was produced at relatively high rates in such reactors, which could diffuse through metals at high temperature and thus required to evaluate the behavior of tritium in FLiNaK. Purpose: This study aims to the permeation behavior of hydrogen in molten salt FLiNaK, providing the basis for tritium permeation behavior in molten salt. Methods: Plentiful experiments were conducted in a testing system for permeation and diffusion characteristics of hydrogen isotope in molten salt. Numerical fitting method of experimental results was performed to obtain the hydrogen permeation characteristics in molten salt FLiNaK. Results: The results showed that hydrogen was diffusing as H+ species in molten salt FLiNaK. The diffusion coefficients and solubility constants of hydrogen in molten salt FLiNaK can be correlated to DFLiNaK-H=1.12×10?4exp(?66.40×103/RgT) (m2?s?1) and KFLiNaK-H=2.1×10?5exp(?0.94×103/RgT) (mol?m?3?Pa?1/2). Conclusion: The diffusion coefficients and solubility constants of hydrogen in molten salt FLiNaK were derived from the experimental results.

Key words: Molten salt FLiNaK, Hydrogen, Permeability, Diffusion, Solubility

ZENG Youshi, DU Lin, PI Li, WU Shengwei, QIAN Yuan, WANG Guanghua, HUANG Yu, ZHU Haiyun, LIU Wei. Permeability of hydrogen in molten salt FLiNaK(LiF-NaF-KF)[J].Nuclear Techniques, 2015, 38(2): 20603-020603.

References

[1]Ambrosek J,Anderson M,Sridharan K,et al.Current status of knowledge of fluoride salt(FliNaK) heat transfer[J]. Nuclear Technology,2009,165:166-173

[2] Khokhlov V, Ignatiev V, Afonichkin V. Evaluating physical properties of molten salt reactor fluoride mixture [J]. Journal of Fluorine Chemistry, 2009, 130:30-37.

[3] Holcomb D E, Cetiner S M. An Overview of Liquid-Fluoride-Salt Heat Transport Systems [R]. OAK RIDGE NATIONAL LABORATORY, 2010, ORNL/TM-2010/156.

[4] Sherman S R. 2005 DOE hydrogen program: NHI system interface and support system, 2005 DOE H2 Annual Review [R]. Project ID #PD31, 2005.

[5] Yamanishi H, Sagara A. Annual Report of National Institute for Fusion Science [R]. Japan, April 1999-March 2000, p.177.

[6] 黄豫, 刘卫, 肖德涛, 等. 熔盐堆中氚的控制和检测[J].核技术,2011,34:632-666

HUANG Y, LIU W, XIAO D T, et al. Control and monitoring of tritium in molten salt reactor [J]. Nuclear Techniques, 2011, 34: 632-636.

[7] Zeng Y S, Wu S W, Qian Y, et al. Apparatus for determining permeability of hydrogen isotope in molten salt [J]. Nucl Sci Tech, 2014, 25: 040602.

[8] Fukada S, Morisaki A. Hydrogen permeabiligy through a mixed molten salt of LiF, NaF and KF (Flinak) as a heat-transfer fluid [J]. Journal of Nuclear Materials, 2006, 358: 235-242.

[9] Masuyama D, Oda T, Fukada S, et al. Chemical state and diffusion behavior of hydrogen isotopes in liquid lithium-lead [J]. Chemical Physics Letters, 2009,483: 214-218.

[10] Fukada S, Kinoshita M, Kuroki K, et al. Hydrogen diffusion in liquid lithium from 500℃ to 650℃ [J]. Journal of Nuclear Materials, 2005, 346: 293-297.

[11] Klix A, Suzuki A, Terai T. Study of tritium migration in liquid Li2BeF4 with ab initio molecular dynamics [J]. Fusion Engineering and Design, 2006, 81: 713-717.

[12] Calderoni P, Sharpe P, Hara M, et al. Measurement of tritium permeation in flibe (2LiF-BeF2) [J]. Fusion Engineering and Design, 2008, 83: 1331-1334.

[13] Malinauskas A P, Richardson D M. The Solubilities of Hydrogen, Deuterium, and Helium in Molten Li2BeF4 [J]. Ind Eng Chem Fundam, 1974, 13: 242-245.

[14] Field P.E, Shaffer J.H. The Solubilities of Hydrogen Fluoride and Deuterium Fluoride in Molten Fluorides [J].The Journal of Physical Chemistry, 1967, 71:3218-3222.

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Permeability of hydrogen in molten salt FLiNaK(LiF-NaF-KF)

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