Experimental Investigations on the Thermal Conductivity of Silica Aerogels by a Guarded Thin-Film-Heater Method

Sandra Spagnol; Berangere Lartigue; Alain Trombe; Florence Despetis

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Experimental Investigations on the Thermal Conductivity of Silica Aerogels by a Guarded Thin-Film-Heater Method

机译：防护的薄膜加热器法研究二氧化硅气凝胶的导热性

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摘要

A thin-film-heater method is setup to measure the thermal conductivity of super insulating materials such as silica aerogels. The experimental setup is purposely designed for insulating materials and allows direct measurement of the thermal conductivity. Few experimental data are available in the literature concerning thermal conductivity of aerogels even though these materials are of major interest in thermal insulation. More data are necessary in order to understand thermal transport and to validate existing models. Monolithic and granular silica aerogels are investigated. Our experimental technique enables to quantify the influence of important parameters, such as air pressure and distribution of grain sizes, on the insulating performance of this material.

机译：设置了薄膜加热器方法来测量超级绝缘材料（例如二氧化硅气凝胶）的热导率。实验装置是专为绝缘材料设计的，可以直接测量热导率。关于气凝胶的导热性的文献几乎没有实验数据，尽管这些材料在绝热中是主要的兴趣。为了理解热传递并验证现有模型，需要更多数据。研究了整体和颗粒状二氧化硅气凝胶。我们的实验技术能够量化重要参数（例如气压和晶粒尺寸分布）对这种材料的绝缘性能的影响。

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来源
《Journal of Heat Transfer》 |2009年第7期|143-146|共4页
作者
Sandra Spagnol; Berangere Lartigue; Alain Trombe; Florence Despetis;
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作者单位

Laboratoire PHASE,Universite de Toulouse,Batiment 3R1,118 Route de Narbonne,31062 Toulouse Cedex 9, France;

Laboratoire PHASE,Universite de Toulouse,Batiment 3R1,118 Route de Narbonne,31062 Toulouse Cedex 9, France;

Laboratoire PHASE,Universite de Toulouse,Batiment 3R1,118 Route de Narbonne,31062 Toulouse Cedex 9, France;

Groupe d'Etude des Semiconducteurs,Universite Montpellier II,Place Eugene Bataillon,34095 Montpellier Cedex 5, France;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
thermal conductivity; silica aerogel; guarded hot plate; nanoporous media;

机译：导热系数;二氧化硅气凝胶防护热板纳米多孔介质;

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1. An experimental investigation and fractal modeling on the effective thermal conductivity of novel autoclaved aerated concrete (AAC)-based composites with silica aerogels (SA) [J] . Qu Ming-Liang, Tian Shuai-Qi, Fan Li-Wu, Applied thermal engineering: Design, processes, equipment, economics . 2020,第1期

机译：基于二氧化硅气凝胶（SA）的新型高压灭菌混凝土（AAC）基复合材料有效导热率的实验研究
2. Experimental investigations on temperature-dependent effective thermal conductivity of nanoporous silica aerogel composite [J] . Liu Hua, Xia Xinlin, Ai Qing, Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics . 2017,第期

机译：纳米多孔硅气凝胶复合材料温度依赖性有效导热率的实验研究
3. Thermal conductivity measurement of thermal insulating mortars with EPS and silica aerogel by steady-state and transient methods [J] . Gloria Gomes M., Flores-Colen I, da Silva F., Construction and Building Materials . 2018,第MAY30期

机译：用稳态和瞬态方法测量EPS和二氧化硅气凝胶对保温砂浆的导热率
4. EXPERIMENTAL DETERMINATION OF THERMAL CONDUCTIVITY OF SILICA AEROGEL AND TWO COMPOSITE NANO-POROUS INSULATION MATERIALS WITH THE THS METHOD [C] . Gaosheng Wei, Yusong Liu, Xinxin Zhang, The Ninth Asian thermophysical properties conference (ATPC 2010). . 2010

机译：THS法测定二氧化硅气凝胶和两种复合纳米多孔绝缘材料的热导率
5. Silica aerogel process modeling and experimental investigations. [D] . Lofftus, Kevin Daniel. 1989

机译：二氧化硅气凝胶工艺建模和实验研究。
6. Experimental Characterization of the Thermal Conductivity and Microstructure of Opacifier-Fiber-Aerogel Composite [O] . Hu Zhang, Chao Zhang, Wentao Ji, 2018

机译：乳化剂-纤维-气凝胶复合材料导热系数和微观结构的实验表征
7. Experimental Investigation of Thermal Conductivity of the Liquids by Guarded Hot Plate Method [O] . INAY ATGUR S.M.GIDAVEER 2015

机译：防护热板法试验液体导热率的实验研究

Experimental Investigations on the Thermal Conductivity of Silica Aerogels by a Guarded Thin-Film-Heater Method

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