Thermal conductivity investigations of granular and powdered silica aerogels at different temperatures and pressures
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- 作者：Gaosheng Wei ; gaoshengw@126.com" class="auth_mail" title="E-mail the corresponding author ; Lixin Wang ; Chao Xu ; Xiaoze Du ; Yongping Yang
- 关键词：Thermophysical properties ; Thermal conductivity ; Transient hot-strip method ; Aerogel ; Nanoporous insulation materials
- 刊名：Energy & Buildings
- 出版年：2016
- 出版时间：15 April 2016
- 年：2016
- 卷：118
- 期：Complete
- 页码：226-231
- 全文大小：1295 K
文摘
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Thermal conductivities of powdered and granular silica aerogels are measured by using the transient hot-strip method.
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The specific surface area of powdered and granular silica aerogels were measured by cryogenic nitrogen adsorption method.
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The effect of pressure and temperature on thermal conductivity of silica aerogels was analyzed.
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The thermal conductivities of powdered, granular, and monolithic silica aerogels were compared.