New Approach to Space-Dependent Kinetic Analysis by the Integral Kinetic Model
New Approach to Space-Dependent Kinetic Analysis by the Integral Kinetic Model
复制标题
通过积分动力学模型进行空间相关动力学分析的新方法
DOI：
10.13182/nse09-59
复制
发表时间：
2012
影响因子：
1.2
通讯作者：
T. Obara
中科院分区：
文献类型：
--
作者：
H. Takezawa;T. Obara
摘要本工作的目的是显示使用积分动力学模型的可能性，它适用于任何几何形状，一般的空间相关的动力学分析。在积分动力学模型的基础上，开发了空间相关动力学分析方法和程序。开发的动力学分析代码进行了验证，从开发的代码与Godiva反应器几何形状的一点模型的结果进行比较。用Monte Carlo法拟合Cij（kΔτ）的误差可以解释两种动力学模型之间的差异。这是因为拟合误差改变了系统的平均生成时间。验证得出的结论是，必须始终监测引入Cij（τ）的拟合误差，以便了解开发代码的计算结果。空间相关的动力学分析代码也被证明在一个快速热耦合反应器的几何结构，包括反馈效应。演示结果表明，理论上预期出现的快速区域和热区域之间的动力学行为存在时间差。总之，这项工作显示了一种新的方法来解决一般的空间相关的动力学问题，使用积分动力学模型，包括反馈效应。
Abstract This work aims to show the possibility of using the integral kinetic model, which is applicable to any geometry, for general space-dependent kinetic analysis. A space-dependent kinetic analysis methodology and code were developed based on the integral kinetic model. The developed kinetic analysis code was verified by comparing results from the developed code with the one-point model in the Godiva reactor geometry. It is possible to explain discrepancies between the two kinetic models using error introduced into Cij(τ) in the fitting process of original Monte Carlo data Cij(kΔτ). This is because the fitting error changes the mean generation time of a system. The verification concluded that it is important to always monitor the fitting error introduced to Cij(τ) in order to understand the calculation results of the developed code. The space-dependent kinetic analysis code was also demonstrated in a fast-thermal coupled reactor geometry including feedback effects. The demonstration results showed a time difference in kinetic behaviors between a fast region and a thermal region that was theoretically expected to appear. In conclusion, this work shows a new approach to solving general space-dependent kinetic problems by using the integral kinetic model including feedback effects.