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Volume 30 Issue 7
Aug.  2021
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Article Contents
WEI Gaosheng, ZHANG Xinxin, YU Fan. Unit cell model for micro,nano-porous composite insulation material[J]. Chinese Journal of Engineering, 2008, 30(7): 781-785. doi: 10.13374/j.issn1001-053x.2008.07.038
Citation: WEI Gaosheng, ZHANG Xinxin, YU Fan. Unit cell model for micro,nano-porous composite insulation material[J]. Chinese Journal of Engineering, 2008, 30(7): 781-785. doi: 10.13374/j.issn1001-053x.2008.07.038

Unit cell model for micro,nano-porous composite insulation material

doi: 10.13374/j.issn1001-053x.2008.07.038
  • Received Date: 2007-06-26
  • Rev Recd Date: 2007-09-25
  • Available Online: 2021-08-06
  • Based on the microstructure features of xonotlite-aerogel composite insulation material, a three dimensional unit cell model was developed for the coupled heat transfer of gas and solid in the material. The effective thermal conductivities of xonotlite-type calcium silicate, aerogel and xonotlite-aerogel composite insulation material were compared by model calculation. The results show that the density of xonotlite-type calcium silicate has great influence on the effective thermal conductivity of xonotlite-aerogel composite insulation material, but the density of aerogel has little influence. The effective thermal conductivity of xonotlite-aerogel composite insulation material is apparently lower than those of xonotlite-type calcium silicate and aerogel at an elevated temperature.

     

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      沈陽化工大學材料科學與工程學院 沈陽 110142

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