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Effect of Thermal Radiation on Thermal Insulation Performance of Silica Aerogel Composites
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Jianye GUO1, Zhiwu CHEN2, Lijun SU1, Wenjing LI1
Journal of the Chinese Ceramic Society | 2023, 51(7) : 1811 - 1818
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Journal of the Chinese Ceramic Society | 2023, 51(7): 1811-1818
• Research Articles •
Effect of Thermal Radiation on Thermal Insulation Performance of Silica Aerogel Composites
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Jianye GUO1, Zhiwu CHEN2, Lijun SU1, Wenjing LI1
Affiliations
  • 1.Research Institute of Aerospace Special Materials and Processing Technology, Beijing 100074, China
  • 2.The Sixth Representative Office in Beijing of Rocket Force, Beijing 100074, China

    • GUO Jianye (1989-), male, Master, Engineer. E-mail:

About Author:

GUO Jianye (1989-), male, Master, Engineer. E-mail:

Published: 2023-05-29 doi: 10.14062/j.issn.0454-5648.20230057
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The thermal radiation has an effect on their thermal insulation performance when using silica aerogel composites at a high temperature. The effect of thermal radiation on the thermal conductivity of aerogel composites was investigated at different pressures and temperatures to regulate the gas phase heat transfer factors. The results show that the thermal conductivity of aerogel composites is decreased by 34% when the pressure is decreased from 100 kPa to 100 Pa under a weak radiant effect of 100 ℃, while the thermal conductivity is decreased by only 3% at 900 ℃ due to the thermal radiation effect. The effect of thermal radiation on the back surface temperature of aerogel composites was also investigated by a heat transfer model at different back surface temperatures. It is indicated that when the radiation heat transfer condition increases from 37 ℃ to 535℃, the temperature increase of the back of material model increases from 0 ℃ to 178 ℃ after removing the radiation heat transfer load between the back of the material model and environment. The temperature increase of the back of material model increases from 10 ℃ to 65 ℃ after removing the convection heat transfer load.

thermal radiation  /  silica aerogel  /  composites  /  thermal conductivity
郭建业, 陈智武, 苏力军, 李文静. 辐射传热对二氧化硅气凝胶复合材料隔热性能的影响. 硅酸盐学报, 2023 , 51 (7) : 1811 -1818 . DOI: 10.14062/j.issn.0454-5648.20230057
Jianye GUO, Zhiwu CHEN, Lijun SU, Wenjing LI. Effect of Thermal Radiation on Thermal Insulation Performance of Silica Aerogel Composites[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (7) : 1811 -1818 . DOI: 10.14062/j.issn.0454-5648.20230057
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Year 2023 volume 51 Issue 7
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Article Info
doi: 10.14062/j.issn.0454-5648.20230057
  • Receive Date：2023-02-08
  • Online Date：2026-10-19
  • Published：2023-05-29
Article Data
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History
  • Received：2023-02-08
  • Revised：2023-02-23
Funding
Affiliations
    1.Research Institute of Aerospace Special Materials and Processing Technology, Beijing 100074, China
    2.The Sixth Representative Office in Beijing of Rocket Force, Beijing 100074, China

Corresponding:

LI Wenjing (1982-), female, Ph.D., Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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