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Effect of Conductivity and Radiation on Heat Dissipation Performance of Coating

  • Qianjin Mao
  • Yue Gao
  • Nairimudele
  • Wenwen Wu
  • Ziming Wang
  • Mingzhang Lan
  • Suping Cui
Conference paper
Part of the Springer Proceedings in Energy book series (SPE)

Abstract

Aiming at the problem of heat dissipation of electronic devices in low temperature environment, the effect of thermal conductivity and emissivity of coating on its heat dissipation performance was studied by theoretical calculations and experiments in this study. The results show that the heat dissipation performance of organic coating with emissivity of 0.7–0.95 is improved as its thermal conductivity increasing. And temperature difference between inside and surface of object is inversely proportional to thermal conductivity. That is, when thermal conductivity exceeds a certain value, it will no longer affect heat dissipation performance of coating. In addition, emissivity of coating directly affects its cooling performance, and the proper matching interaction between thermal conductivity and emissivity of coating can enhance heat dissipation effects. In the case of non-forced convection cooling, the thermal conductivity of the organic coating is preferably 2–10 W/m·K.

Keywords

Cooling coatings Thermal conductivity Emissivity Heat dissipation performance 

Notes

Acknowledgements

This research was financially supported by Funding Project for Academic Human Resources Development in Institutions of Higher Learning Under the Jurisdiction of Beijing Municipality.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Qianjin Mao
    • 1
    • 2
  • Yue Gao
    • 1
    • 2
  • Nairimudele
    • 1
    • 2
  • Wenwen Wu
    • 1
    • 2
  • Ziming Wang
    • 1
    • 2
  • Mingzhang Lan
    • 1
    • 2
  • Suping Cui
    • 1
    • 2
  1. 1.Department of Materials Science and EngineeringBeijing University of TechnologyBeijingChina
  2. 2.Key Laboratory of New Functional Materials, Ministry of EducationBeijing University of TechnologyBeijingChina

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