Preliminary Discussion on Neutronic Parameters of Inert Matrix Fuels in PWR Environment
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摘要: 为研究惰性基质燃料(IMF)在压水堆(PWR)中应用的可行性,计算比较了PuO2+ZrO2+MgO和PuO2+ThO 2种典型IMF的栅格无限增殖系数kinf、燃料温度系数Dc和慢化剂温度系数MTC随燃料中PuO2体积分数的变化规律,得到满足Dc、MTC为负的要求下IMF成分的初步可行区间。
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关键词:
- 惰性基质燃料(IMF) /
- 燃料温度系数 /
- 慢化剂温度系数 /
- 可行区间
Abstract: To study the applicability of utilization of Inert Matrix fuels(IMF) in PWR, the variations of infinite multiplication factor kinf, fuel temperature coefficient Dc, moderator temperature coefficient MTC with PuO2 volume fractions in two typical IMF fuels, PuO2+ZrO2+MgO and PuO2+ThO2, are calculated and analyzed. And the preliminary acceptable design regions of IMF fuels composition to satisfy the negative Dc and MTC are obtained. -
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