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Simple method of calculating the transient thermal performance of composite material and its applicable condition

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Abstract

Degree of mixing of composite material is defined and the condition of using the effective thermal diffusivity for calculating the transient thermal performance of composite material is studied. The analytical result shows that for a prescribed precision of temperature, there is a condition under which the transient temperature distribution in composite material can be calculated by using the effective thermal diffusivity. As illustration, for the composite material whose temperatures of both ends are constant, the condition is presented and the factors affecting the relative error of calculated temperature of composite materials by using effective thermal diffusivity are discussed.

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Authors and Affiliations

  1. Department of Thermal Engineering, Tsinghua University, 100084, Beijing, China

    Yinping Zhang, Yi Jiang, Hongfa Di & Zhijun Nin

  2. Department of Mechanical Engineering, Tsinghua University, 100084, Beijing, China

    Xingang Liang

Authors
  1. Yinping Zhang
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  2. Xingang Liang
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  3. Yi Jiang
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  4. Hongfa Di
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  5. Zhijun Nin
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Correspondence to Yinping Zhang.

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Zhang, Y., Liang, X., Jiang, Y. et al. Simple method of calculating the transient thermal performance of composite material and its applicable condition. Sci. China Ser. E-Technol. Sci. 43, 344–348 (2000). https://doi.org/10.1007/BF02916981

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  • DOI: https://doi.org/10.1007/BF02916981

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