دانلود مقاله انگلیسی رایگان:PWR تجزیه و تحلیل مقطع پین همگن با استفاده از فناوری داده های بزرگ - 2020
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دانلود مقاله انگلیسی داده های بزرگ رایگان
  • PWR pin-homogenized cross-sections analysis using big-data technology PWR pin-homogenized cross-sections analysis using big-data technology
    PWR pin-homogenized cross-sections analysis using big-data technology

    سال انتشار:

    2020


    عنوان انگلیسی مقاله:

    PWR pin-homogenized cross-sections analysis using big-data technology


    ترجمه فارسی عنوان مقاله:

    PWR تجزیه و تحلیل مقطع پین همگن با استفاده از فناوری داده های بزرگ


    منبع:

    Sciencedirect - Elsevier - Progress in Nuclear Energy, 121 (2020) 103228: doi:10:1016/j:pnucene:2019:103228


    نویسنده:

    Guowei Hua, Yunzhao Li *, Sicheng Wang


    چکیده انگلیسی:

    To accurately and reliably predict the behavior of the nuclear reactor core, pin-by-pin fuel management calculation is becoming the next most possible methodology for the Pressurized Water Reactor (PWR). The fewgroup constants parameterization, however, would be the most challenge problem due to the large number of few-group constants and the complicated pin-cell states during the entire operation history of the reactor core. In this study, the big-data analysis technologies were employed to find a possible relationship between the pin-cell homogenized few-group constants and the pin-cell homogenized nuclide densities. Firstly, correlation analysis demonstrated a strong multicollinearity between different nuclide densities, which implies a significant internal structure and interaction among them. Secondly, by using the factor analysis, the large number of nuclide densities were reduced to a small group of nuclide density factors that can reflect the main information of their variation trends. Thirdly, multiple regression analysis between the nuclide density factors and few-group constants verified the possibility of using nuclide density in form of driven factors as the state parameters to predict the few-group constants.
    Keywords: Pin-cell homogenized few-group constants | Nuclide density | Correlation analysis | Factor analysis | Multiple regression analysis


    سطح: متوسط
    تعداد صفحات فایل pdf انگلیسی: 27
    حجم فایل: 2354 کیلوبایت

    قیمت: رایگان


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