Thermal-hydraulic analysis of the HL-2M divertor using an homogeneous equilibrium model

Yong LU (卢勇); Lijun CAI (蔡立君); Yuxiang LIU (刘雨祥); Jian LIU (刘健); Yinglong YUAN (袁应龙); Guoyao ZHENG (郑国尧); Dequan LIU (刘德权)

doi:10.1088/2058-6272/aa7628

Plasma Science and Technology > 2017 > 19(9): 95601-095601. > DOI: 10.1088/2058-6272/aa7628

Yong LU (卢勇), Lijun CAI (蔡立君), Yuxiang LIU (刘雨祥), Jian LIU (刘健), Yinglong YUAN (袁应龙), Guoyao ZHENG (郑国尧), Dequan LIU (刘德权). Thermal-hydraulic analysis of the HL-2M divertor using an homogeneous equilibrium model[J]. Plasma Science and Technology, 2017, 19(9): 95601-095601. DOI: 10.1088/2058-6272/aa7628

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Thermal-hydraulic analysis of the HL-2M divertor using an homogeneous equilibrium model

Southwestern Institute of Physics, Chengdu 610041, People’s Republic of China

Funds: The authors also gratefully acknowledge the National Magnetic Confinement Fusion Science Program of China (No. 2015GB105002).

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Received Date: February 27, 2017

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Abstract

Abstract

The heat flux of the HL-2M divertor would reach 10 MW m^-2 or more at the local area when the device operates at high parameters. Subcooled boiling could occur at high thermal load, which would be simulated based on the homogeneous equilibrium model. The results show that the current design of the HL-2M divertor could withstand the local heat flux 10 MW m^-2 at a plasma pulse duration of 5 s, inlet coolant pressure of 1.5 MPa and flow velocity of 4 m s^-1. The pulse duration that the HL-2M divertor could withstand is closely related to the coolant velocity. In addition, at the time of 2 min after plasma discharge, the flow velocity decreased from 4 m s^-1 to 1m s^-1, and the divertor could also be cooled to the initial temperature before the next plasma discharge commences.
- HL-2M device,
- divertor,
- homogeneous equilibrium model,
- pulse duration

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References (12)

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