Thermal Conductivity Paper Database

Experimental determination and fractal modeling of the effective thermal conductivity of autoclaved aerated concrete: Effects of moisture content

Autoclaved aerated concrete was studied because it has potential to be used in the design of energy-efficient buildings. Three different samples were tested, each with a unique density. Of particular interest to this work was the thermal conductivity of the samples, as this material would be used as a thermally insulating concrete. The thermal conductivities were measured at various percentages of moisture content, and it was found that increasing moisture ...

Author(s): Hong-Qing Jin, Li-Wu Fan, Xiao-Li Yao, Xu Xu, Zi-Tao Yu

Synthesis of flexible aerogel composites reinforced with electrospun nanofibers and microparticles for thermal insulation

The authors present a method of increasing the structural stability of silica aerogels by producing flexible aerogel composites by electrospinning and sol-gel processing. Three composites, each reinforced with one of three different polyvinylidene fluoride (PVDF) microstructures, were prepared in order to determine the effects of these microstructures on the mechanical and thermal properties of the composites. It was found that the compressive strength and flexibility of the composites were significantly ...

Author(s): Haitao Gao, Huijun Wu, Qiliang Chen, Xiaoqing Zhou, Yantao Chen, Yunfei Ding

Engineering thermal and mechanical properties of flexible fiber-reinforced aerogel composites

The authors present a method of fiber-reinforced aerogel composites by impregnation of four layers of aligned glass fibers into silica sol layer-by-layer. The effect of different fiber alignments, as well as the effect of fiber lamination on the mechanical strength of the silica aerogel composites was investigated. In addition to this, the thermal conductivity of each composite was determined. The objective of this work was to investigate whether it is ...

Author(s): Anmin Cao, Huijun Wu, Moran Wang, Shuai Yin, Yundan Liao, Yunfei Ding

Heat transfer of mineral-filled polypropylene foams 

Minerals are often added to polypropylene (PP) foams to improve thermal conductivity. The aim of this study was to test and compare the thermal conductivity of unfilled, magnesium hydroxide (Mg(OH)2)-, and montmorillonite (MMT)-reinforced PP foams. An analyzer measured the thermal conductivity of the polypropylene foams using the Transient Plane Source (TPS) method. Results showed that thermal conductivity increased with foam density and with magnesium concentration....

Author(s): Antonio B. MartiB-nez, Antonio B. Martinez, E. Solorzano, Jose Ignacio Velasco, M. A. Rodriguez-Perez, Marcelo Antunes, Miguel-C
ngel RodrC-guez-PC)rez, Vera Realinho

Highly mesoporous organic aerogels derived from soy and tannin 

The first soy and tannin based organic aerogels with 91% naturality have been developed by researchers, and they have low bulk density but high volumes of mesopores. In this experiment, the transient plane source (TPS) method was used to measure the thermal characteristics of the organic aerogels. Results showed that these novelty aerogels are ecologically friendly because they are low cost and renewable but have attractive thermal properties....

Author(s): Alain Celzard, Andrzej Szczurek, Antonio Pizzi, Boris Kuznetsovb, Gisele Amaral-Labat, Liudmila Grishechko, Vanessa Fierro