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Recommended Papers for: TPS Method

Total Papers Found: 51

Engineering improvement of NaAlH4 system

This article is based on research that has been done to improve hydrogen storage systems with on-board reversible metal hydrides. The study involved the compaction of the sodium aluminum hydride particles, as well as the addition of either aluminum or expanded natural graphite (ENG) to the powders to determine how their addition affects the thermal conductivity. It was found that the compaction of the powders improved the volumetric capacity of ...

Author(s): , , , , , , , ,

Enhanced thermal conductivity of n-octadecane containing carbon-based nanomaterials

The use of organic compounds as phase change materials (PCMs) is limited by the low thermal conductivity of these compounds. In this study, multi-walled carbon nanotubes (MWCNTs) and carbon nanofibers (CNFs) were dispersed in n-octadecane to determine if this nanocomposite PCM would have a higher thermal conductivity than that of pure n-octadecane. The thermal conductivity of the nanocomposite PCMs was measured using the transient plane source (TPS) method at mass ...

Author(s): , ,

Thermal Properties of a Hercynian Granitic Rock: Data from a Deep Borehole (Almeida, Central Portugal)

Thermal conductivity, thermal diffusivity and specific heat are investigated for a granite rock sample from a deep borehole in central Portugal. Thirty-three samples were divided into two groups based on the degree of metasomatic alteration. It was found that the average thermal conductivity for the samples in the group comprising the less altered samples was 2.90 ± 0.26 W/m K, and for the more altered samples, the average value was 2.95 ± 0.19 W/m ...

Author(s): , , , ,

The influence of gaseous heat conduction to the effective thermal conductivity of nano-porous materials

The effective thermal conductivity of a commercial silica aerogel is determined at various gas pressures ranging from 0.001 Pa to 1 MPa in order to determine the contribution of gaseous heat conduction to the effective thermal conductivity of nano-porous materials. It was determined that the gas pressure had a significant effect on the effective thermal conductivity of the aerogel and that the contribution of gaseous heat conduction was greater than the gas ...

Author(s): , , ,

Thermal Conductivity and Thermal Diffusivity of Thermoplastic Elastomeric Blends of Styrene Butadiene Rubber/High Density Polyethylene: Effect of Blend Ratio and Dynamic Crosslinking

Styrene-butadiene (SBR) was added to high-density polyethylene (HDPE) to form a polymer blend. The thermal conductivity and thermal diffusivity of this polymer blend at room temperature were determined at varying blend compositions. The effects of dynamic crosslinking with sulfur crosslinking system and a mixed system on the thermal conductivity and diffusivity were also investigated. Finally, different models were evaluated for the estimation of thermal conductivity of a two phase system....

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