Extension of Source Projection analytic Nodal Sn Method for Analysis of Hexagonal Assembly cores

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We hate extended the source projection analytic nodal discrete ordinates method (SPANDOM) for more flexible applicability in analysis of hexagonal assembly cores. The method (SPANDOM-FH) does not invoke transverse integration but instead solves the discrete ordinates equation analytically after the source term is projected and represented in hybrid form of high-order polynomials and exponential functions. SPANDOM-FH which treats a hexagonal node as one node is applied to too fast reactor benchmark problems and compared with TWOHEX. The results of comparison indicate that the present method SPANDOM-FH predicts accurately k/sub eff/ and flux distributions in hexagonal assembly cores. In addition, SPANDOM-FH gives the continuous two dimensional intranodal scalar flux distributions in a hexagonal node. The reentering models between TWOHEX and SPANDOM ore also compared and it os confirmed that SPANDOMs model is more realistic. Through the results of benchmark problems, n conclude that SPANDOM-FH has the sufficient accuracy for the nuclear design of fast breeder reactor (FBR) cores with hexagonal assemblies.
Publisher
한국원자력학회
Issue Date
1996-10
Language
ENG
Citation

NUCLEAR ENGINEERING AND TECHNOLOGY, v.28, pp.488 - 488

ISSN
1738-5733
URI
http://hdl.handle.net/10203/7171
Appears in Collection
NE-Journal Papers(저널논문)
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