VVER-1000 Nükleer Güç Reaktöründe Kritiklik ve Bağıl Güç Yoğunluk Dağılımının İncelenmesi

Nükleer güç reaktörlerinin tasarımının ve güvenle çalışmasının en önemli öğelerinden biri, kritiklik ve bağıl güç yoğunluk dağılımının incelenmesidir. Bu çalışmada VVER-1000'in kritiklik ve bağıl güç yoğunluk dağılımını içeren nötronik performans analizleri MCNP nötronik kod yardımıyla hesaplanmıştır. Dört farklı yakıt tipi için nötronik hesaplamalar gerçekleştirilmiştir. Her bir yakıt demeti için yapılan hesaplamalar sonucunda reaktör korunda kritiklik ve bağıl güç yoğunluk dağılımları elde edilmiştir. Bu çalışmada elde edilen sonuçlar literatürle karşılaştırılmış ve elde edilen kritiklik ve bağıl güç yoğunluk dağılımı değerlerinin birbirleriyle benzerlik gösterdiği görülmüştür.

Anahtar Kelimeler:

VVER-1000, MCNP, keff, güç yoğunluğu

Investigation of Criticality and Relative Power Density Distribution in VVER-1000 Nuclear Power Reactor

One of the most important elements of the design and safe operation of nuclear power reactors is the examination of the criticality and relative power density distribution. In this study, the neutronic performance analysis of the VVER-1000 containing the critical and relative power density distribution was calculated with the help of the MCNP neutronic code. Neutronic calculations were performed for four different fuel types. As a result of the calculations for each fuel assembly, criticality and relative power density distributions were obtained in the reactor core. The results obtained in this study were compared with the literature and it was seen that the critical and relative power density distribution values were similar.

Keywords:

VVER-1000, MCNP, keff, power density,

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