[2J13-17] Analysis Code Development 1

[2J14] Development of SCOPE2, Core Calculation Code Based on 3-D Fine-Mesh Multi-Group Transport Calculation for PWR

(13) Development of Power Distribution Calculation Model Considering Fuel Assembly Bowing

*Kento Yamamoto¹, Yasunori Ohoka¹, Hiroaki Nagano¹, Akio Yamamoto², Tomohiro Endo² (1. Nuclear Fuel Industries, Ltd., 2. Nagoya Univ.)

Keywords:SCOPE2, pin-by-pin core calculation, fuel assembly bowing, power distribution, correction on the cross-section

Calculation capability of the power distribution considering fuel assembly bowing was implemented in PWR core calculation code SCOPE2. The variation of the gap size due to the fuel assembly bowing was treated by the correction on the macroscopic cross-section. Verification results showed the variation of pin-power distribution can be appropriately treated by SCOPE2.