Fuel Loading Pattern for APR1400 Reactor Core
image credit: APR1400 Nuclear Power Plant (images from google search)
- Feb 4, 2021 11:06 am GMTFeb 4, 2021 5:20 am GMT
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by Mark Gino Aliperio
In the pressurized water reactor like APR1400, annually about one third of the fuel assemblies are vacated and the others are reloaded with new fuel assemblies. In-core fuel management is one of the most challenging areas of nuclear engineering which involves the optimal arrangement of hundreds of fuel assemblies in the core. The optimization of this arrangement is very important from economical point of view to make the nuclear power generating station competitive. An optimal nuclear reload design can be defined as a configuration which has the maximum cycle length for the given fuel inventory or uses the minimum amount of fissionable materials for the given cycle length while satisfying safety constraints such as limitation on power peaking factor.