ISSN:
1573-8205
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
,
Physics
Notes:
Conclusion Prototype tests were performed for a representative set of reactor conditions: the power distribution was performed by a wide range of changes in the position of three groups of control and protection system regulatory devices, the A0 values were varied in the range from −0.40 to 0.16, and the coefficient of non-uniformity kv in the range from 1.7 to 2.6. The results showed the high accuracy and effectiveness of out-of-reactor monitoring of the power and its distribution throughout the core volume. For an LWR, the out-of-reactor monitoring system assemblies can be placed in radiation shielding channels; for this three assemblies, each having three detectors, is sufficient. Chambers having an energy range of standard neutron flux monitoring equipment can be used as detectors. Determining the thermal power and the coefficients of nonuniformity of its distribution in the core does not begin to exhaust the possibilities for out-of-reactor monitoring. Algorithms already exist or are being developed which would allow increased accuracy in the monitoring of power and its distribution, localization of the region or fuel element with the greatest energy loading, detection of stuck control rods and nonfunctional thermal monitoring sensors, and diagnosis of fluctuations and position shifts of internal reactor vessel structures. Thus a reliable, cheap, rapdily responding core condition diagnostics systems can be constructed on the base of out-of-reactor detectors.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01123129
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