Numerical investigation of random packing for CFPs of HTTR using MCNP

Ho, H. Q. ; Honda, Yuki; Goto, Minoru ; Takada, Shoji

This study investigated several stochastic geometry treatments for the coated fuel particles (CFPs) in the high temperature engineering test reactor (HTTR) fuel compact. The criticality calculations were carried out by using MCNP5 for a single fuel block with reflecting boundary condition. The infinite multiplication factor (kinf) of these random arrangements was about 0.03% - 0.15% difference compared to that of regular (uniform) arrangement. The random packing CFPs in an annular lattice showed the highest kinf due to non-truncated CFPs in this model.

Language	:	Japanese
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Meeting title	:	平成28年度日本機械学会関東支部茨城講演会
Held date	:	2016/08
Location (city)	:	日立
Location (country)	:	日本
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Keywords	:	HTTR fuel compact; coated fuel particles; random arrangement; truncated CFPs; MCNP
Research Facility	:	HTTR(高温工学試験研究炉)
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Registration No. : BB20160326
JAEA Abstracts No. :
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