نوع مقاله: مقاله پژوهشی
نویسندگان
1 پژوهشکده رآکتور، پژوهشگاه علوم و فنون هسته‌ای، سازمان انرژی اتمی ایران، صندوق پستی: 51113-14399، تهران ـ ایران
2 پمرکز نظام ایمنی هسته‌ای کشور، سازمان انرژی اتمی ایران، صندوق پستی: 1339-14155، تهران ـ ایران
3 گروه ایمنی هسته‌ای و حفاظت پرتوی، پژوهشگاه علوم و فنون هسته‌ای، سازمان انرژی اتمی ایران، صندوق پستی: 836-14395، تهران ـ ایران
4 مرکز نظام ایمنی هسته‌ای کشور، سازمان انرژی اتمی ایران، صندوق پستی: 1339-14155، تهران ـ ایران
چکیده
رآکتورهای آب سبک با بازده بالا یکی از انواع رآکتورهای آب سبک در فشار فوق بحرانی‌اند که توسط اتحادیه‌ی اروپا مورد مطالعه و طراحی قرار گرفته است. این مقاله تغییرات سطح مقطع‌های نوترونی و ضریب تکثیر مؤثر رآکتور را برای مقدار‌های مختلف نانوذره در خنک‌کننده مورد بررسی قرار می‌دهد. در این رابطه، 4 نانوسیال با مقدار‌های مختلف نانوذرات 3O 2Al، 2TiO، CuO و Cu بررسی شده است. با به‌کا‌ر‌گیری کدهای 5WIMS-D و 2CITATION-LDI نوع و غلظت نانوذره‌ی مناسب در سیال خنک‌کننده محاسبه شد. یافته‌های اولیه نشان داد که در مقدار‌های پایین (کمتر از 1 درصد حجمی) استفاده از نانوسیال آلومینا در خنک‌کننده‌ی رآکتور مناسب‌تر از سایر نانوسیال‌های مورد بررسی است.
کلیدواژه‌ها
عنوان مقاله [English]
Neutronic analysis of nanofluid as a coolant in HPLWR fuel assembly
نویسندگان [English]
- Ehsan zarifi 1
- Kamran Sepanloo 2 3
- Naeimodin Mataji Kojouri 4 3
چکیده [English]
The main objective of this study is to predict the neutronic behavior of nanofluids as a coolant in the fuel assembly of the HPLWR. The high-performance light water reactor (HPLWR) is the European version of the supercritical-pressure water cooled reactor (SCWR). Light water reactor at supercritical pressure which is currently under the design, is considered as a new generation of nuclear reactors. The variations of neutron cross sections and effective multiplication factor have been investigated in different concentrations of nanoparticles in the coolant and moderator channel. In the present analysis, water-based nanofluids containing various volume fractions of Al2O3, TiO2, CuO and Cu nanoparticles are studied. The neutronic properties of nanofluids with the optimum concentration of nanoparticles are calculated using WIMS-D5 and CITATION-LDI2 codes. The results show that at low concentrations of less than 1 volume percentage, alumina is the optimum nanoparticle for the normal operation of a reactor.
کلیدواژه‌ها [English]
- Nanofluid
- Neutronic analysis
- HPLWR
- WIMS code
- CITATION code
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