Reliability research of hypervapotron under electromagnetic load for CFETR divertor

Qin, Shijun; Zhao, Shangxian; Cao, Jin; Wang, Qingfeng; Feng, Xing; Chen, Shu

doi:10.1016/j.fusengdes.2024.114422

Fusion Engineering and Design

2024

DOI: 10.1016/j.fusengdes.2024.114422

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Reliability research of hypervapotron under electromagnetic load for CFETR divertor

Shijun Qin,

Shangxian Zhao,

Jin Cao

et al.

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2024

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Hierarchical Hypervapotron Structure Integrated with Microchannels for Advancement of Thermohydraulic Performance

Meng,

Cheng,

Zhao

et al. 2024

Symmetry

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The hypervapotron structure was considered to be a feasible configuration to meet the high heat-dissipating requirement of divertors in nuclear fusion devices. In this work, symmetric CuCrZr-based transverse microchannels (TMHC) and longitudinal microchannels (LMHC) with an integrated hypervapotron channel were proposed and manufactured, and subcooled flow boiling experiments were conducted using deionized water at an inlet temperature of 20 °C with a traditional flat-type hypervapotron channel (FHC) for comparison. The LMHC and TMHC obtained lower wall temperatures than the FHC for all conditions, and the TMHC yielded the lowest temperatures. The heat transfer coefficients of the LMHC and TMHC outperformed the FHC due to the enlarged heat transfer area, and the TMHC had the greatest heat transfer coefficient (maximumly increased by 132% compared to the FHC) because the transverse-arranged microchannels were conductive, promoting the convection and liquid replenishment ability by introducing branch flow between fins; however, the microchannels of the LMHC were insensible to flow velocities due to the block effect of longitudinal microchannels. The LMHC obtained the largest pressure drop, and the pressure drop for the FHC and TMHC were comparable since the transverse-placed microchannels had little effect on frictional pressure loss. The TMHC attained the greatest comprehensive thermohydraulic performance which might bring significant insight to the structural design of hypervapotron devices.

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Hierarchical Hypervapotron Structure Integrated with Microchannels for Advancement of Thermohydraulic Performance

Meng,

Cheng,

Zhao

et al. 2024

Symmetry

View full text Add to dashboard Cite

show abstract

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Reliability research of hypervapotron under electromagnetic load for CFETR divertor

Cited by 1 publication

References 12 publications

Hierarchical Hypervapotron Structure Integrated with Microchannels for Advancement of Thermohydraulic Performance

Hierarchical Hypervapotron Structure Integrated with Microchannels for Advancement of Thermohydraulic Performance

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