Published 1985
| Version v1
Report
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Final report via vibration measurements on the Helix heat exchanger at the KFA-Jülich IRB
Description
Automatic translation: Flow-induced vibrations of pipes in working heat exchangers are frequently observed. The vibrations can lead to neighboring pipes clash. In some cases, vibrations resulted in structural fatigue or to ''fretting'' damage. As a result, the power plants had to be shut down /1, 2/. Heat exchangers in helium-cooled high-temperature reactors operate at high Pressures in the temperature range up to approx. 900 ° C in the primary circuit. At such high temperatures, the strength of the cyclically loaded materials is relative small amount.
Abstract (German)
Strömungserregte Schwingungen von Rohren in arbeitenden Wärmetauschern werden häufig beobachtet. Die Schwingungen können dazu fuhren, daß benachbarte Rohre aneinanderschlagen. In einigen Fällen führten Vibrationen zur Strukturermüdung bzw. zu ''Fretting''-Schäden. Dies hatte zur Folge, daß die Kraftwerke abgeschaltet werden mußten /1, 2/. Wärmetauscher in Helium-gekühlten Hochtemperaturreaktoren arbeiten bei hohen Drücken im Temperaturbereich bis ca. 900°C im Primärkreislauf. Bei derart hohen Temperaturen ist die Festigkeit der zyklisch belasteten Materialien relativ gering.
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Additional details
Additional titles
- Original title (German)
- Abschlußbericht über Schwingungsmessungen am Helix-Wärmetauscher beim IRB der KFA-Jülich
Publishing Information
- Imprint Pagination
- 119 p.
- Report number
- INIS-DE--21M1045
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 53056934
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S42: ENGINEERING;
- Descriptors DEI
- DAMAGE; FATIGUE; FEDERAL REPUBLIC OF GERMANY; FORSCHUNGSZENTRUM JUELICH; HEAT EXCHANGERS; HELIUM; HTGR TYPE REACTORS; PIPES; POWER PLANTS; PRESSURE RANGE MEGA PA 10-100; TEMPERATURE RANGE 0400-1000 K
- Descriptors DEC
- DEVELOPED COUNTRIES; ELEMENTS; EUROPE; FLUIDS; GAS COOLED REACTORS; GASES; GERMAN FR ORGANIZATIONS; GRAPHITE MODERATED REACTORS; MECHANICAL PROPERTIES; NATIONAL ORGANIZATIONS; NONMETALS; PRESSURE RANGE; PRESSURE RANGE MEGA PA; RARE GASES; REACTORS; TEMPERATURE RANGE; TUBES; WESTERN EUROPE
Optional Information
- Notes
- Document from Juelich Preservation Project; 9 refs., figs., tabs.