| Autors: Kadalev, S. H. Title: Assessment of the heat carrier movement in the primary coolant circuit by its own momentum Keywords: heat carrier movement by its own momentum, loss of cooling, Abstract: In the presented paper is considered the approach to an assessment of the heat carrier flow alteration in the primary water-water reactor coolant circuit after the circulation pump(s) stop. This topic is highly relevant trough advanced and increased nuclear safety requirements because such a process is observed in case of black-out accident or damaged pump(s). The general mathematical model used is described; enabling preparation of this evaluation adapted and applied to a particular example facility namely a pool type research reactor. The factors influencing to the heat carrier movement by its own momentum are examined. The evaluation measures and includes the factors influencing the heat carrier flow rate from the moment the pump(s) stops down to a negligible value. Assessment is presented in detail, step by step and where needed with references to specific data and / or formulae from reference books to allow repetition of the calculations and / or apply to another facility. References Issue
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Вид: статия в списание, публикация в издание с импакт фактор
