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A method to identify an accidental control rod drop with inverse distance weighted interpolation
A method to identify an accidental control rod drop with inverse distance weighted interpolation
- Source :
- Annals of Nuclear Energy. 145:107462
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- The goal of this work is to develop a method to identify the accidental drop of a control rod in the core of a pressurized water reactor based on the readings obtained from thermocouples. The method is based on the physical premise that, due to the local effect that the event produces on the distribution of power and temperature, the greatest variations take place at the fuel assembly position where the control rod is inserted, as well as in its neighbouring regions. In order to identify the control rod, the method presented here analyses the profiles on temperature in the thermocouples and calculates virtual temperature at the positions of the fuel assemblies of the control rods via inverse distance interpolation. The results have shown the feasibility of the method, which has the advantage of not relying of previously simulated data to train the neural networks as seen in previous works.
- Subjects :
- Artificial neural network
Computer science
020209 energy
Drop (liquid)
Control rod
Pressurized water reactor
Inverse
02 engineering and technology
Mechanics
01 natural sciences
010305 fluids & plasmas
law.invention
Nuclear Energy and Engineering
law
Thermocouple
Simulated data
0103 physical sciences
0202 electrical engineering, electronic engineering, information engineering
Virtual temperature
Subjects
Details
- ISSN :
- 03064549
- Volume :
- 145
- Database :
- OpenAIRE
- Journal :
- Annals of Nuclear Energy
- Accession number :
- edsair.doi...........b7470758e82a9bfc01877b9044e78b18
- Full Text :
- https://doi.org/10.1016/j.anucene.2020.107462