METHODOLOGY FOR EMBEDDED TRANSPORT CORE CALCULATION
Open Access
Author:
Ivanov, Boyan Dimitrov
Graduate Program:
Nuclear Engineering
Degree:
Doctor of Philosophy
Document Type:
Dissertation
Date of Defense:
July 09, 2007
Committee Members:
Kostadin Nikolov Ivanov, Committee Chair/Co-Chair Yousry Y Azmy, Committee Member John Harlan Mahaffy, Committee Member Victor Nistor, Committee Member Mohamed Ouisloumen, Committee Member
Keywords:
HOMOGENIZATION FEM EMBEDDED
Abstract:
In this thesis, an advanced core calculation methodology is introduced, based on embedded transport calculations. Two different approaches are investigated. The first approach is based on embedded finite element (FEM), simplified P3 approximation (SP3), fuel assembly (FA) homogenization calculation within the framework of the diffusion core calculation with NEM code (Nodal Expansion Method). The second approach involves embedded FA lattice physics eigenvalue calculation based on collision probability method (CPM) again within the framework of the NEM diffusion core calculation. The second approach is superior to the first because most of the uncertainties introduced by the off-line cross-section generation are eliminated.
