Discriminating blockage, void and leakage in pressure sensing lines

Yang Shen, Keith Holbert

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

Abstract

In nuclear power plants, pressurized sensing lines are used to locate sensors and transmitters away from the main functional equipment. These lines can be affected by leakage, blockage and void. In previous work, the equivalent pi circuit is used to model and analyze the sensing line and the fault conditions. This paper extends the research to more types and detailed fault conditions including blockage at a particular location along the sensing line and a void along a significant length of the line, which better resemble real world cases. The frequency responses of each condition are represented with pressure transmitters included. Furthermore, these fault conditions are explored for better understanding the fault behaviors to reveal a fault at an earlier stage and detect the location and magnitude of the fault as well as differentiate these fault types.

Original languageEnglish (US)
Title of host publication9th International Topical Meeting on Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2015
PublisherAmerican Nuclear Society
Pages490-499
Number of pages10
Volume1
ISBN (Print)9781510808096
StatePublished - 2015
Event9th International Topical Meeting on Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2015 - Charlotte, United States
Duration: Feb 22 2015Feb 26 2015

Other

Other9th International Topical Meeting on Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technologies, NPIC and HMIT 2015
CountryUnited States
CityCharlotte
Period2/22/152/26/15

Keywords

  • Fault conditions
  • Noise analysis
  • Pressurized sensing lines

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering
  • Human-Computer Interaction

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