Published July 1984
| Version v1
Journal article
Inspection of the heat exchangers of the reactor SAPHIR by acoustic emission
Creators
- 1. Eidgenoessisches Inst. fuer Reaktorforschung, Wuerenlingen (Switzerland)
Description
The acoustic emission technique is a non-destructive testing method used for inspection and surveillance of structures and pressurized components. In particular, the purpose of the measurement on the 5 MW research reactor SAPHIR was to investigate and evaluate the abnormally high noise levels during operation of the heat exchangers of the cooling system. The results showed that 5 heat exchangers out of the total of 9 (assembled in 3 groups) were responsible for the higher noise level. This is probably due to some abnormal vibration of the tube bundles therein, caused by the through-flow of the pool water. Indeed, attempts of localizing the source showed that there must be several, distributed sources. (orig.)
Abstract (German)
Die Schallemissionsanalyse ist eine zerstoerungsfreie Pruefmethode, die zur Untersuchung und Ueberwachung von Strukturen und druckfuehrenden Komponenten verwendet werd. Das Ziel der Messung am 5 MW Forschungsreaktor Saphir war die Untersuchung und Auswertung der hohen Betriebsgeraeusche in den Waermetauschern des Kuehlsystems. Die Ergebnisse zeigten, dass von den 9 Waermetauschern, die in 3 Gruppen zugeordnet sind, 5 Waermetauscher ein hohes Betriebsgeraeusch aufweisen. Die Ursache ist auf die Schwingung der Rohrbuendel in Waermetauschern beim Durchfluss des Pool-Wassers zurueckzufuehren. Die axiale Ortung bestaetigte, dass die Geraeusche von mehreren Quellen verursacht werden. (orig.)Additional details
Publishing Information
- Journal Title
- Z. Werkstofftech.
- Journal Volume
- 15
- Journal Issue
- 7
- Series
- CODEN: ZWKTA.;Z. Werkstofftech.
- Journal Page Range
- 246-250
- ISSN
- 0049-8688
Conference
- Title
- Inspection and repair.
- Acronym
- Symposium on structural faults
- Dates
- 22-24 Mar 1983.
- Place
- Edinburgh (UK).
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 15068155
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ACOUSTIC EMISSION TESTING; HEAT EXCHANGERS; IN-SERVICE INSPECTION; MECHANICAL VIBRATIONS; NOISE; REACTOR COOLING SYSTEMS; SAPHIR REACTOR
- Descriptors DEC
- ACOUSTIC TESTING; COOLING SYSTEMS; ENRICHED URANIUM REACTORS; INSPECTION; MATERIALS TESTING; NONDESTRUCTIVE TESTING; POOL TYPE REACTORS; REACTOR COMPONENTS; REACTORS; TESTING; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS