Cristin-resultat-ID: 800974
Sist endret: 31. mai 2017, 08:08
NVI-rapporteringsår: 2011
Resultat
Vitenskapelig artikkel
2011

Spectral analysis of internally leaking shut-down valves

Bidragsytere:
  • Erlend Meland
  • Viggo Henriksen
  • Erik Hennie og
  • Magnus Rasmussen

Tidsskrift

Measurement
ISSN 0263-2241
e-ISSN 1873-412X
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2011
Volum: 44
Hefte: 6
Sider: 1059 - 1072

Importkilder

Scopus-ID: 2-s2.0-79955621846
Isi-ID: 000291134200007

Beskrivelse Beskrivelse

Tittel

Spectral analysis of internally leaking shut-down valves

Sammendrag

We herein describe the results obtained from a set of experiments conducted on a shut-down valve, the objective of which was to identify the degree of internal leakage through the valve in its closed state. Leakage in a valve is not only a concern in terms of safety, but can also contribute to high maintenance costs and the loss of supply. Any improvements to the methods available for monitoring the condition to the valve may yield substantial cost savings and safer working conditions. All the experiments were conducted after causing damage to a valve and by subsequent monitoring of the vibrations caused by the resulting leak, using different types of instrumentation, including acoustic emission and dynamic pressure sensors. We carried out an analysis of the data obtained, in which our primary focus was the spectrum of frequencies obtained from each of the signals emitted. The methods we used deemed to be effective for the detection of leaks. The quantification of the leaks is a rather more complex matter that warrants further investigation, however. Further research is also suggested on the effect of external disturbances, the influence of the experimental parameters, and the applicability of analytical models.

Bidragsytere

Erlend Meland

  • Tilknyttet:
    Forfatter
    ved Institutt for marin teknikk ved Norges teknisk-naturvitenskapelige universitet

Viggo Henriksen

  • Tilknyttet:
    Forfatter
    ved Sustainable Communication Technologies ved SINTEF AS

Erik Hennie

  • Tilknyttet:
    Forfatter
    ved Energi og transport ved SINTEF Ocean

Magnus Ragnar Rasmussen

Bidragsyterens navn vises på dette resultatet som Magnus Rasmussen
  • Tilknyttet:
    Forfatter
    ved Institutt for marin teknikk ved Norges teknisk-naturvitenskapelige universitet
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