Design and Analysis of a Divertor Langmuir Probe for ITER
- 6 November 2018
- journal article
- research article
- Published by Informa UK Limited in Fusion Science and Technology
- Vol. 75 (2), 120-126
- https://doi.org/10.1080/15361055.2018.1520577
Abstract
An all-welded ITER divertor Langmuir probe (DLP) model was analyzed by ANSYS 17.0. Temperature field and surface convective heat transfer were obtained by fluid analysis using ANSYS/CFX under both steady-state (10 MW/m2) and slow transient-state (20 MW/m2 for 10 s) working conditions. Mechanical analysis was performed with the temperature field as the preloading condition. The equivalent von-Mises stress and plastic strain distribution have been obtained. The analyzed results show that the DLPs would withstand very high temperature, which can reach 1852°C mainly owing to the extremely high heat flux as well as photon irradiation. The maximum temperature of the copper connection between the DLP and the monoblock would be 792°C, demonstrating that the bonding structure would not be destroyed. All the materials except the alumina pipe have undergone plastic yield analysis, implying that a low cycle strain-fatigue analysis needs to be done in the near future.Keywords
This publication has 8 references indexed in Scilit:
- Experimental evaluation of Langmuir probe sheath potential coefficient on the HL-2A tokamakNuclear Fusion, 2018
- Thermal Analysis on Various Design Concepts of ITER Divertor Langmuir ProbesFusion Science and Technology, 2017
- Surface heat loads on the ITER divertor vertical targetsNuclear Fusion, 2017
- Behavior of Brazed W/Cu Mockup Under High Heat Flux LoadsPlasma Science and Technology, 2014
- Development of Langmuir Probes on Divertor Cassettes in JT-60SAPlasma and Fusion Research, 2013
- Improvement of divertor triple probe system and its measurements under full graphite wall on EASTFusion Engineering and Design, 2009
- High heat flux Langmuir probe array for the DIII-D divertor platesReview of Scientific Instruments, 2008
- Thermal shock and thermal fatigue study of aluminaJournal of the European Ceramic Society, 2002