Argonne National Laboratory
Reduced Enrichment for Research and Test Reactors
Nuclear Engineering Division at Argonne
U.S. Department of Energy

RERTR Publications:
Analysis Methods for Thermal Research and Test Reactors


Evaluation and Selection of Hot Channel (Peaking) Factors
for Research Reactor Applications*

W. L. Woodruff

RERTR Program
Argonne National Laboratory
Argonne, IL 60439-4841

February 1997

*Work supported by the US Department of Energy
Office of Nonproliferation and National Security
under Contract No. W-31-109-38-ENG.


A proposed method for selecting and applying hot channel factors is presented along with some justification for these selections. The method is illustrated by example, and the sensitivity to some of the choices is examined. The uncertainty in the heat transfer coefficient is a major contributor to the reduction in the thermal-hydraulic safety margins. The uncertainty introduced by the heterogeneity in the fuel is another important contributor and an area where more information may be useful in reducing this uncertainty.

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Dr. William L. Woodruff
Argonne National Laboratory
9700 S. Cass Ave., Bldg. 207
Argonne, IL 60439-4841 USA
Tel.: +1-630-252-8634
Fax: +1-630-252-5161

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Last modified on July 29, 2008 11:33 +0200