TY - JOUR
T1 - Hydrogen permeability through a mixed molten salt of LiF, NaF and KF (Flinak) as a heat-transfer fluid
AU - Fukada, Satoshi
AU - Morisaki, Akio
N1 - Funding Information:
This study was financially supported partially by the NIFS coordinate research (Contract number NIFS04KFDS001) and partially by Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Exploratory Research, 2005, 17656297. The authors appreciate useful discussion with members of Japan–USA Program for Irradiation/Integration Test for Fusion Research-II (JUPITER-II), task 1-1-A Flibe/tritium chemistry group.
PY - 2006/11/30
Y1 - 2006/11/30
N2 - Permeability, diffusivity and solubility of hydrogen in Flinak, a mixed molten salt of LiF (46.5%), NaF (11.5%) and KF (42%), were determined using a vessel supported by a Ni plate. Diffusion-limiting permeation was confirmed by experimental data where hydrogen permeation rates were in reverse proportion to the thickness of Flinak. Diffusivities determined in the range of 500-750 °C were correlated to an Arrhenius equation with the activation energy of 50 kJ/mol. Since the dependence of hydrogen solubility in Flinak on pressure was almost linear, hydrogen was dissolved as H2 in Flinak. The H2 solubility in Flinak was correlated to a Henry law, and its solubility constant was discussed in terms of macroscopic surface tension and unspecified interaction energy between the molten salt and dissolved gaseous molecules.
AB - Permeability, diffusivity and solubility of hydrogen in Flinak, a mixed molten salt of LiF (46.5%), NaF (11.5%) and KF (42%), were determined using a vessel supported by a Ni plate. Diffusion-limiting permeation was confirmed by experimental data where hydrogen permeation rates were in reverse proportion to the thickness of Flinak. Diffusivities determined in the range of 500-750 °C were correlated to an Arrhenius equation with the activation energy of 50 kJ/mol. Since the dependence of hydrogen solubility in Flinak on pressure was almost linear, hydrogen was dissolved as H2 in Flinak. The H2 solubility in Flinak was correlated to a Henry law, and its solubility constant was discussed in terms of macroscopic surface tension and unspecified interaction energy between the molten salt and dissolved gaseous molecules.
UR - http://www.scopus.com/inward/record.url?scp=33750316376&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33750316376&partnerID=8YFLogxK
U2 - 10.1016/j.jnucmat.2006.07.011
DO - 10.1016/j.jnucmat.2006.07.011
M3 - Article
AN - SCOPUS:33750316376
SN - 0022-3115
VL - 358
SP - 235
EP - 242
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 2-3
ER -