کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5787707 1641767 2017 80 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermal response of a Canadian conceptual deep geological repository in crystalline rock and a method to correct the influence of the near-field adiabatic boundary condition
ترجمه فارسی عنوان
پاسخ حرارتی مخزن زمین شناسی عمیق مفهومی کانادایی در سنگ کریستالی و یک روش برای اصلاح نفوذ شرایط مرزی آدیاباتیک میدان نزدیک
کلمات کلیدی
مخزن زمین شناسی عمیق، مدیریت زباله های هسته ای، دفع زباله های هسته ای، مدل سازی حرارتی، سوخت هسته ای مورد استفاده،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
This paper describes the thermal performance of a conceptual deep geological repository (DGR) involving a container for used CANDU® fuel and its placement concept in crystalline rock. For numerical reasons, separate near-field and far-field models are usually used to model a DGR. In the near-field models, an adiabatic thermal condition is applied on the four vertical outside boundaries, and as such, this represents a repository with an infinite horizontal dimension. The results from such models are known to be accurate at early times, with the thermal response overestimated at longer times. To examine the influence of this boundary condition, a simplified near-field model is built using COMSOL and a method is developed to account for boundary condition effects. The method is validated by comparing the modified COMSOL results with a theoretical solution produced using HOTROK. The proposed method can be used in thermal modelling of a used-fuel DGR to obtain accurate results as long as the horizontal dimension of the near-field unit cell is very small compared to the repository panel horizontal dimension (e.g., less than one tenth of the panel dimension).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Geology - Volume 218, 23 February 2017, Pages 50-62
نویسندگان
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