کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1564702 1514168 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental investigation on molten pool representing corium composition at Fukushima Daiichi nuclear power plant
ترجمه فارسی عنوان
بررسی تجربی روی مخزن مذاب که نماینده ترکیب کوریم در نیروگاه هسته ای فوکوشیما دیایچی است
کلمات کلیدی
کوریوم، فوکوشیما دایشی، پیکربندی دو لایه، گرمایش القایی، برگ های سرد
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی هسته ای و مهندسی
چکیده انگلیسی
A configuration of molten core in the Fukushima Daiichi NPP (nuclear power plant) was investigated by a melting and solidification experiment. About 5 kg of a mixture, whose composition in terms of weight is UO2 (60%), Zr + ZrO2 (25%), stainless steel (14%), B4C (1%), was melted in a cold crucible using an induction heating technique. It was shown that the solidified melt consists of upper crust and lower solidified ingot. The solidified ingot was separated into two layers. A physical and chemical analysis was performed for the samples taken from the solidified melt to investigate the morphology and chemical characteristics. It was found that the solidified ingot consists of a metal-rich layer on the top and an oxide-rich layer at the bottom. In addition, the oxide layer at the bottom has composition close to the initial charge composition and surrounded by a thin crust layer. It turned out that B4C was more concentrated in the upper metal-rich layer. These findings provide important insights for understanding the core melt progression and taking proper post-accident recovery actions for the Fukushima Daiichi NPP.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 478, September 2016, Pages 164-171
نویسندگان
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