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Fig.1 Assembly VVER-440. Diagonal pins are red.

Real burnup radial profile in the VVER-440 assembly (3.6% enrichment) Vladimír Chrapčiak VUJE, a.s, Slovakia. Fig.1 Assembly VVER-440. Diagonal pins are red. Fig.2 1/6 of VVER-440 core. Analyzed assemblies are red. ideal case SCALE 5.1 / TRITON / NEWT 44-group transport equation

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Fig.1 Assembly VVER-440. Diagonal pins are red.

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  1. Real burnup radial profile in the VVER-440 assembly (3.6% enrichment)Vladimír ChrapčiakVUJE, a.s, Slovakia VUJE, Inc., Okružná 5, 918 64 Trnava

  2. Fig.1 Assembly VVER-440. Diagonal pins are red. VUJE, Inc., Okružná 5, 918 64 Trnava

  3. Fig.2 1/6 of VVER-440 core. Analyzed assemblies are red VUJE, Inc., Okružná 5, 918 64 Trnava

  4. ideal case SCALE 5.1 / TRITON / NEWT 44-group transport equation 1 assembly in infinitive array real case PERMAK-3D 2-group diffusion equation 1/6 of full core The used codes VUJE, Inc., Okružná 5, 918 64 Trnava

  5. Fig.3 Diagonal relative burnup distribution VUJE, Inc., Okružná 5, 918 64 Trnava

  6. gradient coefficient gradient coefficient = (maximal corner’s burnup)/ (minimal corner’s burnup) • ideal case: 1.000 • real case: central: 11 = 1.048, 21 = 1.022 periphery: 19 = 1.132, 41 = 1.142 VUJE, Inc., Okružná 5, 918 64 Trnava

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