Published June 2001 | Version v1
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Spatial distribution effect of feedback reactivity in TRACY experiments. Evaluation of the first power peak characteristics

Creators

  • 1. Tokyo Inst. of Technology, Research Lab. for Nuclear Reactors, Tokyo (Japan)
  • 2. Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment

Description

To investigate the spatial effect of feedback reactivity in TRACY experiments, evaluations of the first power peak characteristics using the one-point reactor approximation model and a space dependent kinetics code, PCTAC, were conducted. Analyses for a core with uniform temperature distribution using the temperature feedback reactivity multiplied by a weight of 1.5 gave the same results as those for a core with space dependent power distribution. Neutronic calculations for spatial effect of temperature and space dependent kinetics analyses showed that the spatial effect of the temperature feedback reactivity at the peak power was dominated by the power distribution without feedback, and this resulted in a weight of 1.5. (author)

Availability note (English)

Available from INIS in electronic form

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Additional details

Publishing Information

Imprint Pagination
68 p.
Report number
JAERI-Research--2001-037

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
33019361
Subject category
S22: GENERAL STUDIES OF NUCLEAR REACTORS;
Descriptors DEI
COMPARATIVE EVALUATIONS; CRITICALITY; FEEDBACK; NUMERICAL ANALYSIS; P CODES; PEAKS; POWER DISTRIBUTION; REACTIVITY; REACTOR KINETICS; SPATIAL DISTRIBUTION; TEMPERATURE COEFFICIENT; TRANSIENTS; VOID COEFFICIENT; WEIGHT
Descriptors DEC
COMPUTER CODES; DISTRIBUTION; EVALUATION; KINETICS; MATHEMATICS; REACTIVITY COEFFICIENTS

Optional Information

Notes
13 refs., 69 figs., 21 tabs.