Model of a fusion cryopumping system for condition monitoring

Nick Wright*, Roger Dixon, Roel Verhoeven

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Cryopumping systems provide an essential function in most magnetic confinement nuclear fusion experiments. The maintenance of an ultra-high vacuum in a magnetic confinement vessel is required for experiments to be conducted, without exception, and cryopumping systems are widely used to achieve this. As such, the availability of this type of nuclear fusion experiment depends in part upon the availability of its vacuum system. In order to reduce experimental time lost to unplanned maintenance, investigation and avoidable failures, a condition monitoring scheme targeted on a cryopumping vacuum system is proposed. A model of the cryopumping system deployed on the Joint European Torus is presented. The model is supported by a first principles derivation and is validated using historical data. Its application to a condition monitoring scheme is discussed. This paper contributes to the wider nuclear fusion development programme by addressing a key maintenance and reliability issue, which is an important step on the road to commercial fusion energy.

Original languageEnglish
Title of host publicationProceedings of the 2012 UKACC International Conference on Control, CONTROL 2012
Pages449-454
Number of pages6
DOIs
Publication statusPublished - 26 Nov 2012
Event2012 UKACC International Conference on Control, CONTROL 2012 - Cardiff, United Kingdom
Duration: 3 Sep 20125 Sep 2012

Conference

Conference2012 UKACC International Conference on Control, CONTROL 2012
Country/TerritoryUnited Kingdom
CityCardiff
Period3/09/125/09/12

Keywords

  • Condition Monitoring
  • Cryopumping
  • Dynamic Modelling
  • Two Phase Systems

ASJC Scopus subject areas

  • Control and Systems Engineering

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