Speaker
Description
It is necessary to take effective cooling methods and remove the high heat flux from the divertor which sustains one-sided high heat fluxes over 10 MW/m2 in steady state. In order to ensure the reliability and security of the divertor in the fusion reactor, it is necessary to conduct the heat transfer and structural assessment of cooling tube in the divertor. In this paper, the heat transfer enhancement of the subcooled flow boiling in vertically upward screw cooling tubes, the tube with twisted tape and plain tube were carried out by using the Fluent software. Then, this paper conducted the structural analyses of the three cooling tube. The ranges of the working parameters of water are as follows: pressure P=4.5 MPa, water temperature at the inlet T_in=473 K and mass flux G=8653 kg/m2s. The 3Sm rule, pipe material temperature and the assessment of critical heat flux have been compared with investigated for the three cooling tube, which can guide the optimum for the heat transfer and structural assessment of the monoblock divertor.
| Eligible for student paper award? | Yes |
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