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Energy Field Simulating of Heat Transfer Capability and Damage Evaluation on an Improved Langmuir Probe

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An Erratum to this article was published on 19 August 2012

Abstract

In this paper we proposed a advanced Langmuir probe (LP)—cooling monoblock (CM) model used in Tokamak of controlled thermonuclear fusion, this model adopted several novel designs used for improving the heat transfer capability. In the transient thermal analysis, the effect of conical degree of AL2O3 ceramic barrel on the thermal contact resistance at the interface of different materials has been systematically studied and a reasonable explanation was given for the phenomenon where the increasing of conical degree lead to the decreasing of thermal contact resistance. Moreover the top part of CM of the plasma facing unit was prepared by pyrolytic graphite can make the temperature of LP obviously reduced. Eventually the thermal state of LP during the 400 s pulse are figured out by ANSYS under optimal loading conditions, the calculation results showed the maximum temperature of LP is 2,253°C at 211 s, meanwhile, the basic characteristics for variation of the maximum temperature of LP with the incident heat flux are presented. These results obtained in this work are helpful to reveal the thermal energy state of LP more accurately, reduce the damage on the device, and improve its working stability.

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Acknowledgments

This work is supported by National Special Fund for the Territorial Resources in the Public Interest (No. 201111020-2), Natural Science Foundation of Fujian Province of China (Grant No. 2011J01320) and Foundation of Overseas Chinese Affairs Office of the State Council for Huaqiao University (No. 11QZR15).

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Authors and Affiliations

  1. School of Aerospace Engineering and Applied Mechanics, Tongji University, Si Ping Road, Yangpu, Shanghai, 200092, China

    Huangbin Lin

  2. Fujian Monitoring Center of Geological Environment, Jin Quan Street, Fuzhou, 350001, China

    Haiyuan Qiu

  3. Key Laboratory of Engineering and Technology, Ji Mei University, Xiamen, 361021, China

    Tao Wang

Authors
  1. Huangbin Lin
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  2. Haiyuan Qiu
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  3. Tao Wang
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Correspondence to Haiyuan Qiu.

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Lin, H., Qiu, H. & Wang, T. Energy Field Simulating of Heat Transfer Capability and Damage Evaluation on an Improved Langmuir Probe. J Fusion Energ 31, 573–579 (2012). https://doi.org/10.1007/s10894-012-9507-7

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