کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8084090 1521729 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Atmospheric dispersion assessment of radioactive materials during severe accident conditions for Bushehr nuclear power plant using HYSPLIT code
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
Atmospheric dispersion assessment of radioactive materials during severe accident conditions for Bushehr nuclear power plant using HYSPLIT code
چکیده انگلیسی
In nuclear power plants and nuclear research reactors, radioactive material release into the environment and the dose received by individuals are the main concerns during a severe accident. Thus, calculation of expected dose at reactor perimeters and surrounding area in the event of an accident is a basic requirement for the safety of these facilities. This study uses the HYSPLIT code to simulate the consequences of the worst hypothetical accident scenario of Station Blackout (SBO) and Large Break Loss-of-Coolant Accident (LBLOCA) in Bushehr nuclear power plant unit-1 (BNPP-1). The concentration of released radioactive material and external effective doses received by populations within 30 km radius of facility are computed. Dispersion of radioactive materials is simulated using of Global Data Assimilation System (GDAS) meteorological data. Particle behavior in different stages of dispersion and annual dispersion along each of the 16 geographic directions are obtained from trajectory calculations. The concentration of different radionuclides is determined and the resulting annual external effective dose at different locations are computed as well. All calculations are performed for four different release time durations including 4, 12, 24 and 48 h. Given the distribution of population around the NPP facility, the highest doses are expected at 3 km north and 4 km northwest of the reactor location. The maximum dose for 4, 12, 24, and 48-h long emission at different points of Bushehr city is calculated and compared with the allowable dose limits.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Nuclear Energy - Volume 108, September 2018, Pages 169-178
نویسندگان
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