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Title: Implementation of nodal equivalence parameters in DIF3D-VARIANT for core analysis of prismatic Very High Temperature Reactor (VHTR).

Abstract

The VARIANT module of the DIF3D code has been upgraded to utilize surface-dependent discontinuity factors. The performance of the new capability is verified using two-dimensional core cases with control rods in reflector and fuel blocks. Cross sections for VHTR components were generated using the DRAGON and HELIOS codes. For rodded block cross sections, the DRAGON calculations used a single-block model or the multi-block models combined with MCNP4C flux solutions, whereas the HELIOS calculations utilized multi-block models. Results from core calculations indicate that multiplication factor, block power, and control rod worth are significantly improved by using surface-dependent discontinuity factors.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
NE
OSTI Identifier:
925340
Report Number(s):
ANL-GENIV-092
TRN: US0803043
DOE Contract Number:
DE-AC02-06CH11357
Resource Type:
Technical Report
Country of Publication:
United States
Language:
ENGLISH
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; CONTROL ELEMENTS; CONTROL ROD WORTHS; CROSS SECTIONS; IMPLEMENTATION; MULTIPLICATION FACTORS; PERFORMANCE

Citation Formats

Lee, C. H., Joo, H. K., Yang, W. S., Taiwo, T. A., and Nuclear Engineering Division. Implementation of nodal equivalence parameters in DIF3D-VARIANT for core analysis of prismatic Very High Temperature Reactor (VHTR).. United States: N. p., 2007. Web. doi:10.2172/925340.
Lee, C. H., Joo, H. K., Yang, W. S., Taiwo, T. A., & Nuclear Engineering Division. Implementation of nodal equivalence parameters in DIF3D-VARIANT for core analysis of prismatic Very High Temperature Reactor (VHTR).. United States. doi:10.2172/925340.
Lee, C. H., Joo, H. K., Yang, W. S., Taiwo, T. A., and Nuclear Engineering Division. Thu . "Implementation of nodal equivalence parameters in DIF3D-VARIANT for core analysis of prismatic Very High Temperature Reactor (VHTR).". United States. doi:10.2172/925340. https://www.osti.gov/servlets/purl/925340.
@article{osti_925340,
title = {Implementation of nodal equivalence parameters in DIF3D-VARIANT for core analysis of prismatic Very High Temperature Reactor (VHTR).},
author = {Lee, C. H. and Joo, H. K. and Yang, W. S. and Taiwo, T. A. and Nuclear Engineering Division},
abstractNote = {The VARIANT module of the DIF3D code has been upgraded to utilize surface-dependent discontinuity factors. The performance of the new capability is verified using two-dimensional core cases with control rods in reflector and fuel blocks. Cross sections for VHTR components were generated using the DRAGON and HELIOS codes. For rodded block cross sections, the DRAGON calculations used a single-block model or the multi-block models combined with MCNP4C flux solutions, whereas the HELIOS calculations utilized multi-block models. Results from core calculations indicate that multiplication factor, block power, and control rod worth are significantly improved by using surface-dependent discontinuity factors.},
doi = {10.2172/925340},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Mar 15 00:00:00 EDT 2007},
month = {Thu Mar 15 00:00:00 EDT 2007}
}

Technical Report:

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