Počet záznamů: 1
High heat flux limits of the fusion reactor water-cooled first wall
- 1.
SYSNO ASEP 0519145 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název High heat flux limits of the fusion reactor water-cooled first wall Tvůrce(i) Zacha, P. (CZ)
Entler, Slavomír (UFP-V) ORCIDCelkový počet autorů 2 Zdroj.dok. Nuclear Engineering and Technology. - : Korean Nuclear Society - ISSN 1738-5733
Roč. 51, č. 5 (2019), s. 1251-1260Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. KR - Korejská republika Klíč. slova friction factor characteristics ; helical screw-tape ; turbulent-flow ; enhancement ; design ; High heat flux ; Thermal performance factors ; Turbulator promoters ; First wall ; Cooling ; cfd Vědní obor RIV JF - Jaderná energetika Obor OECD Nuclear physics Způsob publikování Omezený přístup Institucionální podpora UFP-V - RVO:61389021 UT WOS 000473127300007 EID SCOPUS 85068056476 DOI 10.1016/j.net.2019.03.013 Anotace The water-cooled WCLL blanket is one of the possible candidates for the blanket of the fusion power reactors. The plasma-facing first wall manufactured from the reduced-activation ferritic-martensitic steel Eurofer97 will be cooled with water at a typical pressurized water reactor (PWR) conditions. According to new estimates, the first wall will be exposed to peak heat fluxes up to 7 MW/m(2) while the maximum operated temperature of Eurofer97 is set to 550 degrees C. The performed analysis shows the capability of the designed flat first wall concept to remove heat flux without exceeding the maximum Eurofer97 operating temperature only up to 0.75 MW/m(2). Several heat transfer enhancement methods (turbulator promoters), structural modifications, and variations of parameters were analysed. The effects of particular modifications on the wall temperature were evaluated using thermo-hydraulic three-dimensional numerical simulation. The analysis shows the negligible effect of the turbulators. By the combination of the proposed modifications, the permitted heat flux was increased up to 1.69 MW/m(2) only. The results indicate the necessity of the re-evaluation of the existing first wall concepts. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2020 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S1738573318304182?via%3Dihub
Počet záznamů: 1