کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1741835 1017419 2006 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modelling and control strategy of the Italian LBE-XADS
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
Modelling and control strategy of the Italian LBE-XADS
چکیده انگلیسی

In this paper the dynamic behaviour of the Italian 80 MWth XADS (eXperimental Accelerator Driven System) is investigated, by means of a simple model for its main components as well as the most relevant interactions among them, namely the accelerator–core coupling and the corresponding neutronic features, the primary system with lead bismuth eutectic (LBE) as primary coolant, the secondary circuit with an organic diathermic fluid, and the associated air cooling system for an effective rejection of thermal power to the environment as a final heat sink. The simulation and control of the system dynamics took into account the singular features of the components, which show very different time constants, and the wide time interval needed by the organic fluid to flow into the secondary loop of the reactor. A control strategy based on a simultaneous feedforward–feedback scheme has been adopted, the main requirement being to keep constant the average temperature of the secondary fluid. The dynamic response of the whole system has been evaluated, significant transient initiators have been considered: the results show that the proposed zero-dimensional model, in spite of its simplicity, is sufficiently accurate to predict the plant response in terms of the most relevant variables. The results also confirm that the Italian LBE-XADS exhibits a large operational margin, owing to favourable design choices and protective engineered actions as well as to the adopted control strategy of the system.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Nuclear Energy - Volume 48, Issue 6, August 2006, Pages 578–589
نویسندگان
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