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HELCZA-High heat flux test facility for testing ITER EU first wall components.

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    0480958 - ÚFP 2018 RIV CH eng J - Journal Article
    Prokůpek, J. - Samec, K. - Jílek, R. - Gavila, P. - Neufuss, S. - Entler, Slavomír
    HELCZA-High heat flux test facility for testing ITER EU first wall components.
    Fusion Engineering and Design. Roč. 124, November (2017), s. 187-190. ISSN 0920-3796. E-ISSN 1873-7196.
    [SOFT 2016: Symposium on Fusion Technology /29./. Prague, 05.09.2016-09.09.2016]
    Institutional support: RVO:61389021
    Keywords : HELCZA * High heat flux * Electron beam testing * Test facility * Plasma facing components * First wall * Divertora
    Subject RIV: JF - Nuclear Energetics
    OBOR OECD: Nuclear related engineering
    Impact factor: 1.437, year: 2017

    The ITER first wall panels are exposed directly to thermonuclear plasma and must extract heat loads ofapproximately 2 MW/m2(normal heat flux) to 4.7 MW/m2(enhanced heat flux). The panels are qualifiedthrough high heat flux cyclic testing before installation in ITER. Initially, the first wall panel prototypes willundergo full-power tests, they will be followed by the pre-series panels and finally the series ones. The experimental complex HELCZA (High Energy Load CZech Assembly) has been completed and is currently in the commissioning phase. HELCZA shall be optimised to provide a cyclic heating of the ITER EU firstwall panels with a heat flux in the multi-MW/m2range using an 800 kW electron beam. On a reduced area it is possible to reach GW/m2scale. Total available test area in HELCZA is 4 m2 depending on theexperimental setup. Operational conditions of the HELCZA facility enable the temperature of the coolingwater to be set between 25°C and 320°C, within a pressure range up to 15 MPa. The cooling system provides an optimal flow rate up to 40 m3/h independent of the pressure.
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