Measurement techniques for column interface monitoring in an advanced gas cooled reactor model

Luiza Dihoru*, Olafur Oddbjornsson, Adam J Crewe , Colin Anthony Taylor

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

Abstract

This work features an important structural engineering project that provides experimental and numerical predictions to support the safety cases of the Advanced Gas-cooled Reactors (AGRs) in the United Kingdom (UK). The AGR core columns must remain vertical within tight tolerances so that the control rods and the fuel stringers have a secure and unimpeded travel in and out the channels. This paper presents the design, development and testing of bespoke techniques for column interface measurements which feed into the channel shape calculations of a quarter size physical model of an AGR core, developed at the University of Bristol (UOB). The results will play a vital part in the characterization of the core’s dynamic behaviour and will feed into the seismic resilience assessments of the AGRs.
Original languageEnglish
Article number111134
Number of pages15
JournalNuclear Engineering and Design
Volume377
Early online date10 Mar 2021
DOIs
Publication statusE-pub ahead of print - 10 Mar 2021

Keywords

  • advanced gas-cooled reactor
  • displacement measurement
  • infrared vision
  • neural networks (NN)

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