Void diagnostics in liquid-filled pressure sensing lines

Kang Lin, Keith Holbert

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Air or gas entrapped in liquid-filled sensing lines can result in false pressure readings, sluggish response, and extraneous noise due to acoustic resonances. This work models the impact on the pressure system transfer function of voids inside sensing lines based on an equivalent pi circuit along with a lumped parameter void representation. Field test data from a fossil power plant are used to validate the simulation results. Two void indicators derived from resonant peak frequencies are also introduced to perform sensing line diagnostics.

Original languageEnglish (US)
Pages (from-to)503-511
Number of pages9
JournalProgress in Nuclear Energy
Volume52
Issue number5
DOIs
StatePublished - Jul 2010

Fingerprint

void
liquid
Liquids
Acoustic noise
Equivalent circuits
Transfer functions
Power plants
Acoustics
transfer function
power plant
acoustics
Air
Gases
fossil
air
gas
simulation
indicator
parameter
test

Keywords

  • Noise analysis
  • Power spectral density
  • Pressure sensing lines
  • Sensing line equivalent pi model
  • Transfer functions

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering
  • Waste Management and Disposal
  • Safety, Risk, Reliability and Quality

Cite this

Void diagnostics in liquid-filled pressure sensing lines. / Lin, Kang; Holbert, Keith.

In: Progress in Nuclear Energy, Vol. 52, No. 5, 07.2010, p. 503-511.

Research output: Contribution to journalArticle

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