Synthesis and thermal properties of shape-stabilized lauric acid/activated carbon composites as phase change materials for thermal energy storage

2012 ◽  
Vol 102 ◽  
pp. 131-136 ◽  
Author(s):  
Zhi Chen ◽  
Feng Shan ◽  
Lei Cao ◽  
Guiyin Fang
Keyword(s):  
Thermal Properties ◽  
Activated Carbon ◽  
Energy Storage ◽  
Phase Change ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Lauric Acid ◽  
Phase Change Materials ◽  
Carbon Composites

Preparation and Properties of Paraffin/Activated Carbon Composites as Phase Change Materials for Thermal Energy Storage

2012 ◽  
Vol 608-609 ◽  
pp. 1049-1053 ◽  
Author(s):  
Liang Zhao ◽  
Xiang Chen Fang ◽  
Gang Wang ◽  
Hong Xu
Keyword(s):  
Activated Carbon ◽  
Energy Storage ◽  
Composite Materials ◽  
Phase Change ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Phase Change Materials ◽  
Energy Storage Materials ◽  
Carbon Composites ◽  
Good Thermal Stability

Paraffin/activated carbon composites as phase change energy storage materials were prepared by absorbing paraffin into activated carbon. In composite materials, paraffin was used as phase change material (PCM) for thermal energy storage, and activated carbon acted as supporting material, ethanol was the solvent. A series of characterization were conducted to analyse and test the performance of the composite materials, and differential scanning calorimeter (DSC) results showed that the PCM-2 composite has the melting latent heat of 51.7 kJ/kg with melting temperature of 60.4°C. Due to the capillary and surface tension forces between paraffin and activated carbon, the leakage of melted paraffin from the composites can be prevented. In a word, the paraffin/activated carbon composites have a good thermal stability and can be used repeatedly.

scholarly journals Investigation of the Thermal Properties of Diesters from Methanol, 1-Pentanol, and 1-Decanol as Sustainable Phase Change Materials

Materials ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 810
Author(s):  
Rebecca Ravotti ◽  
Oliver Fellmann ◽  
Ludger J. Fischer ◽  
Jörg Worlitschek ◽  
Anastasia Stamatiou
Keyword(s):  
Thermal Properties ◽  
Energy Storage ◽  
Phase Change ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Phase Change Materials ◽  
Dicarboxylic Acids ◽  
Chemical Structures ◽  
Materials Used ◽  
Fischer Esterification

Esters present several advantages when compared to traditional materials used for thermal energy storage, amongst which are better sustainability and greater chemical stability. However, at present, their thermal properties remain mostly unknown or not well documented. In this study, 12 diesters from four dicarboxylic acids (oxalic, succinic, suberic, sebacic) and three alcohols (methanol, 1-pentanol, 1-decanol) have been assessed as bio-based phase change materials for thermal energy storage. All diesters have been synthesized via Fischer esterification to high purities, and their chemical structures, as well as thermal properties, have been fully characterized. The diesters investigated show phase change transitions in a low–mid temperature range between −32 and 46 °C with maximum enthalpies of 172 J/g and show higher degrees of supercooling compared to fatty monoesters. Similarly to other esters classes, some trends correlating the chemical structures to the thermal properties were identified, which would allow for the development of property prediction tools.

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