Modeling of nonlinear hydrogen diffusion in titanium hydrides TiHx

被引：17
|
作者：
Rokhmanenkov, A. [1 ]
机构：
[1] ROSATOM, Dukhou Res Inst Automat VNIIA, Moscow 127055, Russia
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 35期
关键词：
Simulation; Titanium hydride; Hydrogen diffusion; Thermal desorption; UNDOPED ALPHA-TI; THERMAL-DESORPTION; OPTIMIZATION; SIMULATION; KINETICS; RELEASE; TRITIDE; LATTICE;
D O I：
10.1016/j.ijhydene.2017.04.085
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Behavior of hydrogen H in titanium hydride TiHx is studied with the help of macrokinetic modeling by the free hydrodynamic package OpenFOAM. Modeling of hydrogen in the delta-TiHX is performed taking into account the nonlinear dependence of H diffusion from both the temperature and the hydrogen concentration. Two experiments on the thermal desorption of hydrogen isotopes of titanium hydride were chosen for fitting the effective recombination constants. Several methods of global minimization of target function are employed in fitting procedure. The comparison of the used methods is provided and discussed. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：22610 / 22614
页数：5
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