Kinetic parameters of a material test research reactor fueled with high density U3Si2 dispersion fuels

被引：8
|
作者：
Muhammad, Farhan [1 ]
Majid, Asad [1 ]
机构：
[1] Pakistan Inst Engn & Appl Sci, Dept Nucl Engn, Islamabad 45650, Pakistan
来源：
PROGRESS IN NUCLEAR ENERGY | 2009年 / 51卷 / 01期
关键词：
MTR; High density fuels; Excess reactivity; Prompt neutron generation time; Effective delayed neutron fraction;
D O I：
10.1016/j.pnucene.2008.02.004
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The kinetic parameters of a material test research reactor fueled with high density U3Si2 dispersion fuels were calculated. For this purpose, the low density LEU fuel of an MTR was replaced with high density U3Si2 LEU fuels currently being developed under the RERTR program. Calculations were carried out to find the core excess reactivity, prompt neutron generation time and effective delayed neutron fraction. Nuclear reactor analysis codes including WIMS-D4 and CITATION were employed to carry out these calculations. It is observed that the excess reactivity (Delta k/k). prompt neutron generation little (mu s) and effective delayed neutron fraction at the beginning of life followed the relationships 0.05403 + 0,00286p(U) - (0.92958/p(U)(2)), 10(6)/(922.338 + 5268.82 rho(U) - 70.863 rho(2)(U)) and (7.2165 - 7.238 x 10(-3)rho(U))/1000, respectively, for 4.0 <= rho(U)(g/cm(3)) <= 6.0. (c) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：141 / 145
页数：5
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