Transient hydride fuel behavior in LWRs
Transient hydride fuel behavior in LWRs
复制标题
轻水堆中的瞬态氢化物燃料行为
DOI：
10.1016/j.jnucmat.2009.03.010
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发表时间：
2009
影响因子：
3.1
通讯作者：
D. Olander
中科院分区：
文献类型：
--
作者：
K. Terrani;J. Seifried;D. Olander
研究了氢化铀锆 (U0.31ZrH1.6) 燃料元件对轻水反应堆反应插入事故典型条件的瞬态响应。燃料内的氢扩散被视为随时间变化的温度曲线的函数。还考虑了燃料热性能的温度和氢浓度依赖性。描述瞬态热传导和氢扩散的耦合方程组通过热扩散的克兰克-尼科尔森离散格式和氢扩散的显式欧拉格式求解。
The transient response of a uranium zirconium hydride (U0.31ZrH1.6) fuel element to conditions typical of a light water reactor reactivity insertion accident has been studied. Hydrogen diffusion within the fuel is treated as a function of the time-dependent temperature profile. Temperature and hydrogen concentration dependence of thermal properties of the fuel is also considered. The set of coupled equations describing the transient conduction of heat and diffusion of hydrogen are solved with a Crank–Nicolson discretization scheme for heat diffusion and an explicit Euler scheme for hydrogen diffusion.