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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Article name in the collection

Proceedings 34th International Conference on Metallurgy and Materials

ISBN

978-80-88365-27-3

ISSN

2694-9296

e-ISSN

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Number of pages

6

Pages from-to

236-241

Publisher name

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Place of publication

Praha

Event location

Praha

Event date

May 21, 2025

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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