| 等效天然铀燃料混合比计算方法研究 |
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| 引用本文： | 黄世恩,郑继业,王连杰,魏彦琴,李庆.等效天然铀燃料混合比计算方法研究[J].原子能科学技术,2013,47(Z1):132-136. |
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| 作者姓名： | 黄世恩 郑继业 王连杰 魏彦琴 李庆 |
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| 作者单位： | 1.中国核动力研究设计院 核反应堆系统设计技术重点实验室，四川 成都610041；2.环境保护部 核与辐射安全中心，北京100082 |
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| 摘 要： | 基于一阶微扰理论，采用合理假设与近似，研究了等效天然铀（NUE）燃料的回收铀（RU）和贫铀（DU）混合比计算方法，确保了NUE燃料与天然铀（NU）燃料之间的等效。所采用的混合比计算方法精确考虑了微观截面随燃耗的变化。在此基础上，开发了ALPHA计算程序，并将其与WIMS-AECL程序一起组成了适用于重水堆NUE燃料混合比计算的程序系统。数值验证表明，该程序系统能准确求解NUE燃料混合比。
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| 关 键 词： | 等效天然铀燃料 混合比 中子学等效 ALPHA程序 |
Research on Calculation of Mixing Fraction for Natural Uranium Equivalent Fuel |
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| HUANG Shi-en,ZHENG Ji-ye,WANG Lian-jie,WEI Yan-qin,LI Qing.Research on Calculation of Mixing Fraction for Natural Uranium Equivalent Fuel[J].Atomic Energy Science and Technology,2013,47(Z1):132-136. |
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| Authors: | HUANG Shi-en ZHENG Ji-ye WANG Lian-jie WEI Yan-qin LI Qing |
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| Affiliation: | 1.Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu 610041, China;2.Nuclear and Radiation Safety Centre, Ministry of Environmental Protection, Beijing 100082, China |
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| Abstract: | Based on the first-order perturbation theory and reasonable approximations, the calculation method of recycled uranium (RU) and depleted uranium (DU) mixing fraction for natural uranium equivalent (NUE) fuel was studied, so the equivalence between NUE fuel and natural uranium (NU) fuel was assured. The adopted calculation method accurately takes the variation of micro cross sections alone with fuel depletion into account. A computer code named ALPHA was programmed to execute the calculation procedure. Then the ALPHA code and the WIMS-AECL code compose a processing system, which is applicable to the mixing fraction calculation for heavy water reactor NUE fuel. The validation shows that the processing system can accurately calculate the mixing fraction for NUE fuel. |
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| Keywords: | natural uranium equivalent fuel mixing fraction neutronics equivalence ALPHA code |
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