With a goal of wider usage of renewable energy sources that are clean and sustainable, effective technologies, such as thermal energy storage (TES), play a vital role in storing thermal energy for future use. In this study, silver nanoparticles were dispersed in paraffin wax, eicosane, as phase change material (PCM). Thermal conductivity was measured following the transient method, using a Thermal Constants Analyzer with transient plane source technique. Thermal conductivity ...
Author(s): RabihB M. Al Ghossein
The present study aims at encapsulating hybrid graphene aerogel (HGA) into 3D graphene foam (GF) to fabricate high-performance composite phase change materials (PCM). Using the chemical vapor deposition (CVD) technique, a 3D hybrid GF/HGA (GH) microstructure was formed to create PW/GH composite PCMs. Thermal conductivity of PW/GH composite PCMs increased due to optimized 3D GH hybrid microstructure....
Author(s): Dacheng Wei, Guo-Qiang Qi, Jie Yang, Kongyang Yi, Lan Peng, Menglin Li, Ming-Bo Yang, Rui-Ying Bao, Wei Yang, Zhi Cai
The use of graphene aerogel has recently been studied with highly functional phase change materials (PCMs) to create 3D structures for improved thermal conductivity and shape-stabilization. In this study, hybrid graphene aerogels (HGA) comprising graphene oxide (GO) and graphene nanoplatelets (GNP) were prepared. Thermal conductivity was measured and results found thermal conductivity increased linearly with low GNP content and continued to grow at a slower rate with increased GNP. Improvement ...
Author(s): Bang-Hu Xie, Guo-Qiang Qi, Jie Yang, Ming-Bo Yang, Rui-Ying Bao, Wei Yang, Yang Liu, Zheng-Ying Liu
In this study, high performance composite phase change materials (PCMs) were created. Graphene oxide (GO) nanosheets were used as supporting materials to keep the shape of polyethylene glycol (PEG) stable during phase change, and graphene nanoplatelets (GNP) were used as conductive fillers. Thermal conductivity was measured with a transient plane source method. Thermal conductivity was found to increase linearly with GNP loading, and PEG/GO/GNP composite PCMs exhibited higher ...
Author(s): Bang-Hu Xie, Guo-Qiang Qi, Jie Yang, Ming-Bo Yang, Rui-Ying Bao, Wei Yang, Zheng-Ying Liu
This article investigated the effects of incorporating highly-conductive silver nanoparticles into eicosane-based phase change materials. The influence of silver nanoparticles on the thermal conductivity of the material was compared under three different solidification techniques. A Thermal Constants Analyzer measured the thermal conductivities of the samples using the transient plane source (TPS) method. The authors found that thermal conductivity increased as temperature increased, and that there was a sharp rise in ...
Author(s): J. M. Khodadadi, Mohammad S. Hossain, RabihB M. Al Ghossein
