Device for High-Temperature and High-Pressure Cyclic Tests of Sealing and Preliminary Experimental Results

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F25%3AN0000035" target="_blank" >RIV/26722445:_____/25:N0000035 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.confer.cz/metal/2025/5117-device-for-high-temperature-and-high-pressure-cyclic-tests-of-sealing-and-preliminary-experimental-results" target="_blank" >https://www.confer.cz/metal/2025/5117-device-for-high-temperature-and-high-pressure-cyclic-tests-of-sealing-and-preliminary-experimental-results</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/metal.2025.5117" target="_blank" >10.37904/metal.2025.5117</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Device for High-Temperature and High-Pressure Cyclic Tests of Sealing and Preliminary Experimental Results

Popis výsledku v původním jazyce

A characteristic feature of advanced energy devices, such as Generation IV nuclear reactors, is operation combining high temperatures and pressures of working media. One of the key issues is ensuring the tightness of joints of metal components at very high temperatures (above 600 °C). At the same time, it is necessary to ensure tightness during non-nominal operating conditions associated with temporal changes in operating parameters. Commonly, seals are tested according to the ČSN EN 13 555 standard, where the combination of high operating temperature and high pressure changing over time with a chosen rate of change is not considered. For this reason, a unique device for testing seals was developed and commissioned at the Research Centre Řež. The facility allows characterization and tightness tests of different sealing products at wide temperature (up to 700 °C) and pressure (up to 40 MPa) that might also be time-dependent. The facility also allows testing of the entire gasket + flange + bolts assembly up to an outer diameter of 150 mm. In this paper, design, capabilities, and the first operational experience are mentioned. In addition, preliminary results from testing seals with a metallic core are mentioned. The device and the associated research can contribute to increasing the efficiency of sealing metal flange joints and other components and developing methodologies for evaluating sealing elements under extreme conditions, thus increasing the safety of operation of energy or other process equipment operating at high pressures and temperatures.

Název v anglickém jazyce

Device for High-Temperature and High-Pressure Cyclic Tests of Sealing and Preliminary Experimental Results

Popis výsledku anglicky

A characteristic feature of advanced energy devices, such as Generation IV nuclear reactors, is operation combining high temperatures and pressures of working media. One of the key issues is ensuring the tightness of joints of metal components at very high temperatures (above 600 °C). At the same time, it is necessary to ensure tightness during non-nominal operating conditions associated with temporal changes in operating parameters. Commonly, seals are tested according to the ČSN EN 13 555 standard, where the combination of high operating temperature and high pressure changing over time with a chosen rate of change is not considered. For this reason, a unique device for testing seals was developed and commissioned at the Research Centre Řež. The facility allows characterization and tightness tests of different sealing products at wide temperature (up to 700 °C) and pressure (up to 40 MPa) that might also be time-dependent. The facility also allows testing of the entire gasket + flange + bolts assembly up to an outer diameter of 150 mm. In this paper, design, capabilities, and the first operational experience are mentioned. In addition, preliminary results from testing seals with a metallic core are mentioned. The device and the associated research can contribute to increasing the efficiency of sealing metal flange joints and other components and developing methodologies for evaluating sealing elements under extreme conditions, thus increasing the safety of operation of energy or other process equipment operating at high pressures and temperatures.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings 34th International Conference on Metallurgy and Materials

ISBN

978-80-88365-27-3

ISSN

2694-9296

e-ISSN

—

Počet stran výsledku

6

Strana od-do

236-241

Název nakladatele

—

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

21. 5. 2025

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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