Solution combustion synthesized copper foams for enhancing the thermal transfer properties of phase change material

2021 ◽  
Vol 871 ◽  
pp. 159458
Author(s):  
Nan Sheng ◽  
Chunyu Zhu ◽  
Zhonghao Rao
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Solution Combustion ◽  
Thermal Transfer ◽  
Change Material ◽  
Transfer Properties

scholarly journals Graphene Modified Montmorillonite Based Phase Change Material for Thermal Energy Storage with Enhanced Interfacial Thermal Transfer

2020 ◽  
Author(s):  
Kang Peng ◽  
Hongjie Wang ◽  
Pengfei wan ◽  
Jianwei Wang ◽  
Hua Luo ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Energy Storage ◽  
Stearic Acid ◽  
Phase Change ◽  
Phase Change Material ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Thermal Transfer ◽  
Modified Montmorillonite ◽  
Change Material

Abstract Thermal energy storage technology plays a crucial role in the thermal management system. Clay based organic phase change material has considerable advantages in the application of thermal energy storage due to low cost and high energy storage capacity. However, the low thermal conductivity of clay, especially poor interfacial thermal transfer, limits its thermal energy storage efficiency. Herein, stearic acid/reduced graphene oxide modified montmorillonite composites (SA/RGO-MMT) were prepared by the vacuum impregnation of stearic acid into graphene modified montmorillonite matrix, which was obtained via the in situ reduction of graphene oxide on the surface of montmorillonite. Stearic acid is assembled in the porous structures of RGO-MMT with the physical interactions. SA/RGO-MMT possesses high melting enthalpy of 159 J/g, low extent of supercooling of 1.4 oC and excellent thermal reliability after 100 thermal cycling. Energy storage and release rates of SA/RGO-MMT were significantly improved due to the enhanced interfacial thermal transfer by graphene. Therefore, SA/RGO-MMT is a promising form-stable phase change material for applications in solar heat storage fields. The strategy in this study highlights the importance of enhancing interfacial thermal transfer for the efficient thermal energy storage materials.

Thermophysical and heat transfer properties of phase change material candidate for waste heat transportation system

2007 ◽  
Vol 44 (7) ◽  
pp. 763-769 ◽  
Author(s):  
Akihide Kaizawa ◽  
Nobuhiro Maruoka ◽  
Atsushi Kawai ◽  
Hiroomi Kamano ◽  
Tetsuji Jozuka ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Phase Change ◽  
Phase Change Material ◽  
Waste Heat ◽  
Transportation System ◽  
Change Material ◽  
Transfer Properties

Preparation and Thermal Transfer of Phase Change Microcapsule on the Fabric

2012 ◽  
Vol 490-495 ◽  
pp. 969-973
Author(s):  
Ying Hong Lou ◽  
Xiao Yan Liu ◽  
Xiao Mei Liu ◽  
Lei Cao ◽  
Lan Xi He ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Change Process ◽  
Particle Distribution ◽  
Thermal Transfer ◽  
Change Material

In this paper, the microcapsule of PCM (phase change material) was prepared, and the temperature adjustment principle of PCM was introduced. From the SEM, the morphology of microcapsule was shown as circle and uniform, which accorded with the particle distribution. The DSC curve showed the PCM heat change process. In this paper, the thermal transfer of microcapsule on the fabric was also introduced which was very useful for smart fabric application.

Improving Thermal Properties of N-Nonadecane/Expanded Dolomite Composite Phase Change Material for Thermo-Regulating Textiles

2014 ◽  
Vol 6 (4) ◽  
Author(s):  
Mostaf Khosrsojerdi ◽  
Sayed Majid Mortazavi
Keyword(s):  
Thermal Properties ◽  
Phase Change ◽  
Phase Change Material ◽  
Moisture Transfer ◽  
Thermal Protection ◽  
Vacuum Impregnation ◽  
Differential Scanning Calorimetric ◽  
Impregnation Method ◽  
Change Material ◽  
Transfer Properties

This paper mainly addressed preparation of a new n-nonadecane/expanded dolomite (ED) composite using vacuum impregnation method. This method was first used for textile thermal protection. In this method, n-nonadecane was applied as the phase change material (PCM) and ED was used as the supporting material in order to prepare and construct form-stable composite PCM. Composite properties were determined by FTIR and SEM techniques. Also the heat transfer measurement and differential scanning calorimetric (DSC) test were used to determine the thermal properties of composite on fabrics. The DSC results showed that freezing and melting temperatures of n-nonadecane in composite PCM have changed a little, indicating that there are no strong interactions between n-nonadecane molecules and the pore walls of ED. It was found that moisture transfer properties have substantial effects on textiles comfortable attributes. That is why moisture transfer properties were measured; the results show that the more fabric pores have been filled in composite PCM, which these changes cause moisture transfer reduction. The SEM results showed that the PCM was well absorbed in the porous network of the expanded materials. The results for DSC and temperature transfer also suggested that fabric temperature range for the amount of coated PCM depends on its area; namely, the more PCM is used in the fabric, the more heat for temperature increase will be needed. This is because as PCM increases in the composite, the latent heat storage density increases too; further, by adding n-nonadecane/ED composite to the textile surface; moisture and thermal transfer could be reduced.

Nanoparticle enhanced paraffin and tailing ceramic composite phase change material for thermal energy storage

2020 ◽  
Vol 4 (9) ◽  
pp. 4547-4557
Author(s):  
Runfeng Li ◽  
Yang Zhou ◽  
Xili Duan
Keyword(s):  
Heat Transfer ◽  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Ceramic Composite ◽  
Physical Stability ◽  
Enhanced Heat Transfer ◽  
Composite Phase Change Material ◽  
Change Material ◽  
Transfer Properties

A nanoparticle-paraffin-tailing ceramic composite phase change material is developed with good chemical and physical stability and enhanced heat transfer properties.

NUMERICAL STUDY OF A SOLAR GREENHOUSE DRYER WITH A PHASE-CHANGE MATERIAL AS AN ENERGY STORAGE MEDIUM

2018 ◽  
Vol 49 (6) ◽  
pp. 509-528 ◽  
Author(s):  
Orawan Aumporn ◽  
Belkacem Zeghmati ◽  
Xavier Chesneau ◽  
Serm Janjai
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Numerical Study ◽  
Storage Medium ◽  
Solar Greenhouse ◽  
Change Material
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