350 MW(t) design fuel cycle selection. Revision 1

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This document discusses the results of this evaluation and a recommendation to retain the graded fuel cycle in which one-half of the fuel elements are exchanged at each refueling. This recommendation is based on the better performance of the graded cycle relative to the evaluation criteria of both economics and control margin. A choice to retain the graded cycle and a power density of 5.9 MW/m{sup 3} for the upcoming conceptual design phase was deemed prudent for the following reasons: the graded cycle has significantly better economics, and essentially the same expected availability factor as the batch design, when both ... continued below

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46 p.

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Lane, R. K.; Lefler, W. & Shirley, G. January 1986.

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Description

This document discusses the results of this evaluation and a recommendation to retain the graded fuel cycle in which one-half of the fuel elements are exchanged at each refueling. This recommendation is based on the better performance of the graded cycle relative to the evaluation criteria of both economics and control margin. A choice to retain the graded cycle and a power density of 5.9 MW/m{sup 3} for the upcoming conceptual design phase was deemed prudent for the following reasons: the graded cycle has significantly better economics, and essentially the same expected availability factor as the batch design, when both are evaluated against the same requirements, including water ingress; and the reduction in maximum fuel pin power peaking in the batch design compared to the graded cycle is only a few percent and gas hot streaks are not improved by changing to a batch cycle. The preliminary 2-D power distribution studies for both designs showed that maximum fuel pin power peaking, particularly near the inner reflector, was high for both designs and nearly the same in magnitude. 10 figs., 9 tabs.

Physical Description

46 p.

Notes

OSTI as DE97003990

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  • Other Information: PBD: Jan 1986

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  • Other: DE97003990
  • Report No.: DOE/HTGR--86-009-Rev.1
  • Grant Number: AC03-84SF11963
  • DOI: 10.2172/454012 | External Link
  • Office of Scientific & Technical Information Report Number: 454012
  • Archival Resource Key: ark:/67531/metadc674869

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Office of Scientific & Technical Information Technical Reports

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  • January 1986

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  • July 25, 2015, 2:21 a.m.

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  • May 16, 2016, 12:19 p.m.

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Lane, R. K.; Lefler, W. & Shirley, G. 350 MW(t) design fuel cycle selection. Revision 1, report, January 1986; United States. (digital.library.unt.edu/ark:/67531/metadc674869/: accessed May 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.