Calculation of Reactivity Accidents for the IRT Reactor at Mephi to Validate Conversion to Low-Enrichment Fuel

Calculation of Reactivity Accidents for the IRT Reactor at Mephi to Validate Conversion to Low-Enrichment Fuel

The results of emergency-incident calculations for the IRT reactor at MEPhI with high-enrichment uranium fuel and with conversion to IRT-3M fuel assemblies with fuel kernels based on the alloy U–9% Mo in an aluminum matrix with 19.7% enrichment are presented. Transient processes due to unauthorized...

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Veröffentlicht in:Atomic energy (New York, N.Y.) N.Y.), 2014-12, Vol.117 (2), p.77-84
Hauptverfasser: Shchurovskaya, M. V., Alferov, V. P., Portnov, A. A., Radaev, A. I.
Format: Artikel
Sprache:eng
Schlagworte:
Accidents
Alloys
Aluminum
Analysis
Compensation
Conversion
Enrichment
Hadrons
Heavy Ions
Insertion
Load
Mathematical analysis
Nuclear Chemistry
Nuclear Energy
Nuclear fuels
Nuclear Physics
Nuclear reactors
Physics
Physics and Astronomy
Reactors
Studies
Uranium
Velocity
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Zusammenfassung:The results of emergency-incident calculations for the IRT reactor at MEPhI with high-enrichment uranium fuel and with conversion to IRT-3M fuel assemblies with fuel kernels based on the alloy U–9% Mo in an aluminum matrix with 19.7% enrichment are presented. Transient processes due to unauthorized positive reactivity insertion during the fulfillment of safety functions are examined. The PARET 7.5 software was used to calculate the transient processes.
ISSN:1063-4258
1573-8205
DOI:10.1007/s10512-014-9892-2