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A numerical analysis of heat transfer in an evacuated flexible multilayer insulation material

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Abstract

In this article, the theoretical heat transfer of flexible multilayer insulation material which can be used in high (<433 K) and low temperature (>123 K) environments has been analyzed. A mathematical model has been developed to describe the heat flux through flexible multilayer insulation material, where the heat transfer consists of thermal radiation, solid spacers and gas heat transfer. The equations for heat transfer model have been solved by iterative method combining with dichotomy method using Matlab. Comparison between the experimental results and the calculated values which are obtained from the model shows that the model is feasible to be applied in practical estimation. The investigation on the flexible multilayer thermal insulation material will present active instruction to improve the performance and accomplish optimum design of the material.

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Authors and Affiliations

  1. Textile Materials and Technology Laboratory, Donghua University, Shanghai, 201620, People’s Republic of China

    Jinjing Chen & Weidong Yu

  2. College of Garment & Art Design, Jiaxing University, Jiaxing, Zhejiang, 314001, People’s Republic of China

    Weidong Yu

Authors
  1. Jinjing Chen
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  2. Weidong Yu
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Correspondence to Weidong Yu.

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Chen, J., Yu, W. A numerical analysis of heat transfer in an evacuated flexible multilayer insulation material. J Therm Anal Calorim 101, 1183–1188 (2010). https://doi.org/10.1007/s10973-010-0683-2

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  • DOI: https://doi.org/10.1007/s10973-010-0683-2

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