Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Demonstration of an improved passive acoustic fault detection method on recordings from the Phénix steam generator operating at full power
KTH, School of Engineering Sciences (SCI), Physics, Reactor Technology.ORCID iD: 0000-0003-1358-9355
KTH, School of Engineering Sciences (SCI), Physics, Reactor Technology.ORCID iD: 0000-0001-5595-1952
2017 (English)In: Annals of Nuclear Energy, ISSN 0306-4549, E-ISSN 1873-2100, Vol. 101Article in journal (Refereed) Epub ahead of print
Abstract [en]

A hidden Markov model method proposed earlier for passive acoustic leak detection in sodium fast reactor systems has been improved in order to clarify how to set all free model parameters and to allow smaller amounts of training data. The method is based on training the model on known background noise only and optimizing its free model parameters by a parametric study of detection performance for synthetic noises superposed onto the same background. This means that the method is not assuming any knowledge on the noise to be detected and may be used as a general fault detection method, even if the application envisaged here is leak detection for sodium fast reactors. Using recordings of background noise as well as from argon injection tests performed at full power in the Phénix sodium fast reactor plant, it is estimated that the resulting method will detect leak-like deviations from the background noise with a detection delay of a few seconds, a false alarm rate close to 10-8 per second and at signal-to-noise ratio conditions at least corresponding to an additive signal at −10 dB. The method is one-channel, i.e. using input from one single acoustic sensor only.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 101
National Category
Other Physics Topics
Identifiers
URN: urn:nbn:se:kth:diva-199418DOI: 10.1016/j.anucene.2016.10.003ISI: 000392767800001Scopus ID: 2-s2.0-84994850700OAI: oai:DiVA.org:kth-199418DiVA, id: diva2:1062499
Funder
Swedish Research Council, B0774801
Note

QC 20170109

Available from: 2017-01-06 Created: 2017-01-06 Last updated: 2017-11-29Bibliographically approved

Open Access in DiVA

fulltext(4215 kB)47 downloads
File information
File name FULLTEXT01.pdfFile size 4215 kBChecksum SHA-512
47443b7ca1ae50ea292e406ea58043ffebe65f51b6eb72d9f738ae22887e00b7d912a61f17e49a2e00c1a01c74a6478d642756afe31536cbaea3563a33c81137
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopusPublisher´s web site

Search in DiVA

By author/editor
Riber Marklund, AndersAnglart, Henryk
By organisation
Reactor Technology
In the same journal
Annals of Nuclear Energy
Other Physics Topics

Search outside of DiVA

GoogleGoogle Scholar
Total: 47 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 63 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf