The Measurement of Helium Leakages through Flange Gaskets for Gas-Cooled Fast Reactors
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F20%3A43920252" target="_blank" >RIV/60461373:22320/20:43920252 - isvavai.cz</a>
Výsledek na webu
<a href="https://www.sciencedirect.com/journal/nuclear-engineering-and-design/vol/367/suppl/C" target="_blank" >https://www.sciencedirect.com/journal/nuclear-engineering-and-design/vol/367/suppl/C</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.nucengdes.2020.110783" target="_blank" >10.1016/j.nucengdes.2020.110783</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
The Measurement of Helium Leakages through Flange Gaskets for Gas-Cooled Fast Reactors
Popis výsledku v původním jazyce
The study deals with the development of a method that would reliably determine the tightness of flange joints of the helium circuit of a gas-cooled fast reactor (GFR). The proposed procedure and equipment enable the parallel measurement of the helium leakage from a high-pressure cell and He contamination in the cell by the diffusion of gases from the ambient atmosphere against the pressure gradient. The self-designed apparatus is constructed for the performance of long-term tests of both parameters (i.e. both He leakage and its contamination) at a temperature of 400 °C and a pressure of 20 MPa. Nevertheless, the construction limits of the device at which the measurement can be safely carried out are 450 °C / 35 MPa. The permanent gases diffusing into helium through the gasket were analyzed by a gas chromatograph with a PDHID detector, whereas the He leakage was determined using a high-sensitivity TCD. The article presents continuous results of tests carried out at ambient temperature. The procedures for data measurement and evaluation are demonstrated on one selected type of gasket with the inner diameter of 44 mm, the outer diameter of 79 mm and the thickness of 14.2 mm.
Název v anglickém jazyce
The Measurement of Helium Leakages through Flange Gaskets for Gas-Cooled Fast Reactors
Popis výsledku anglicky
The study deals with the development of a method that would reliably determine the tightness of flange joints of the helium circuit of a gas-cooled fast reactor (GFR). The proposed procedure and equipment enable the parallel measurement of the helium leakage from a high-pressure cell and He contamination in the cell by the diffusion of gases from the ambient atmosphere against the pressure gradient. The self-designed apparatus is constructed for the performance of long-term tests of both parameters (i.e. both He leakage and its contamination) at a temperature of 400 °C and a pressure of 20 MPa. Nevertheless, the construction limits of the device at which the measurement can be safely carried out are 450 °C / 35 MPa. The permanent gases diffusing into helium through the gasket were analyzed by a gas chromatograph with a PDHID detector, whereas the He leakage was determined using a high-sensitivity TCD. The article presents continuous results of tests carried out at ambient temperature. The procedures for data measurement and evaluation are demonstrated on one selected type of gasket with the inner diameter of 44 mm, the outer diameter of 79 mm and the thickness of 14.2 mm.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20704 - Energy and fuels
Návaznosti výsledku
Projekt
<a href="/cs/project/TH02020578" target="_blank" >TH02020578: Optimalizace a určování netěsností spojů a regenerace helia z úniků chladiva u heliem chlazených reaktorů 4 GEN</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2020
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Nuclear Engineering and Design
ISSN
0029-5493
e-ISSN
—
Svazek periodika
367
Číslo periodika v rámci svazku
october
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
10
Strana od-do
110783
Kód UT WoS článku
000569400400003
EID výsledku v databázi Scopus
2-s2.0-85089244475