scholarly journals Azelaic Acid/Expanded Graphite Composites with High Latent Heat Storage Capacity and Thermal Conductivity at Medium Temperature

ACS Omega ◽  
2021 ◽  
Author(s):  
Giang Tien Nguyen ◽  
Ha Soo Hwang ◽  
Jiyoung Lee ◽  
In Park
Keyword(s):  
Thermal Conductivity ◽  
Latent Heat ◽  
Azelaic Acid ◽  
Storage Capacity ◽  
Heat Storage ◽  
Expanded Graphite ◽  
Latent Heat Storage ◽  
Medium Temperature ◽  
Graphite Composites ◽  
High Latent Heat

Thermal Conductivity Enhancement in a Latent Heat Storage Device

2013 ◽  
Vol 860-863 ◽  
pp. 590-593
Author(s):  
Cha Xiu Guo ◽  
Ding Bao Wang ◽  
Gao Lin Hu
Keyword(s):  
Heat Transfer ◽  
Thermal Conductivity ◽  
Solid State ◽  
Liquid Phase ◽  
Phase Change ◽  
Latent Heat ◽  
Heat Storage ◽  
Storage Device ◽  
Latent Heat Storage ◽  
Conductivity Enhancement

High conductivity porosity materials are proposed to enhance the phase change materials (PCM) in order to solve the problem of low conductivity of PCM in the latent heat storage device (LHSD), and two-dimensional numerical simulation is conducted to predict the performance of the PCM by CFD software. During the phase change process, the PCM is heated from the solid state to the liquid phase in the process of melting and from the liquid phase to the solid state in the solidification process. The results show that porosity materials can improve heat transfer rate effectively, but the effect of heat transfer of Al foam is superior to that of graphite foam although the heat storage capacity is almost the same for both. The heat transfer is enhanced and the solidification time of PCM is decreased since the effective thermal conductivity of composite PCM is increased.

scholarly journals Thermal Conductivity and Density Evaluation of Nanosuspension as Latent Heat Storage Material

Netsu Bussei ◽  
2019 ◽  
Vol 33 (4) ◽  
pp. 151-158
Author(s):  
Shin-ichi Morita ◽  
Fumiya Irie ◽  
Katsuma Hirano ◽  
Yasutaka Hayamizu ◽  
Takanobu Yamada ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Latent Heat ◽  
Heat Storage ◽  
Storage Material ◽  
Latent Heat Storage ◽  
Heat Storage Material ◽  
Density Evaluation

scholarly journals Chemical and thermal properties of VO2 mechanochemically derived from V2O5 by co-milling with paraffin wax

RSC Advances ◽  
2018 ◽  
Vol 8 (38) ◽  
pp. 21306-21315 ◽  
Author(s):  
Chika Takai ◽  
Mamoru Senna ◽  
Satoshi Hoshino ◽  
Hadi Razavi-Khosroshahi ◽  
Masayoshi Fuji
Keyword(s):  
Thermal Properties ◽  
Latent Heat ◽  
Heat Storage ◽  
Electronic States ◽  
Paraffin Wax ◽  
Latent Heat Storage ◽  
Chemical Route ◽  
High Latent Heat

Reduction of V2O5via a mechano-chemical route brings about unique electronic states of vanadium. The resulting VO2 exhibits high latent heat storage during heating (a) and cooling (b).

Concentrated Parabolic Solar Distiller with latent heat storage capacity

2011 ◽  
pp. 185-188 ◽  
Author(s):  
M. Gowtham ◽  
M.Sharath Chander ◽  
K.V.Sri Saila Mallikarujanan ◽  
N. Karthikeyan
Keyword(s):  
Latent Heat ◽  
Storage Capacity ◽  
Heat Storage ◽  
Latent Heat Storage

Suppressing the Supercooling Effect of Erythritol by Bubbling for Latent Heat Storage

2020 ◽  
Author(s):  
Sheng Yang ◽  
Xue-Feng Shao ◽  
Li-Wu Fan
Keyword(s):  
Latent Heat ◽  
Flow Rate ◽  
Crystallization Process ◽  
Heat Storage ◽  
Crystallization Time ◽  
High Chemical ◽  
Latent Heat Storage ◽  
Medium Temperature ◽  
Bubble Sizes ◽  
Change Material

Abstract Erythritol, a phase change material (PCM) pertinent to the medium temperature range latent heat storage applications, has the advantages of large storage density, non-toxicity, and high chemical compatibility, but it also suffers from serious supercooling upon cool-down to release the stored heat. In this work, the bubbling method was attempted as an economic and easy way to suppress the supercooling effect of erythritol. At a flow rate of 300 mL/min, N2 bubbles of the size of about 4.4 mm in diameter were continuously introduced into molten erythritol under various subcooling temperatures of ΔTsub = 30, 40, 50, 60, and 95 °C. At the same flow rate, slightly larger bubbles of about 6 mm in diameter were also tested as a contrast case at a single subcooling temperature of ΔTsub = 30°C. The presence of the bubbles was clearly exhibited to successfully facilitate crystallization process of erythritol. It was shown that when ΔTsub = 40, 50, 60, and 95 °C, the introduction of N2 bubbles can reduce the nucleation temperatures Tn by 7.0, 8.2, 10.0 and 5.7°C, respectively, and shorten the crystallization time tc by 19.7%, 14.8%, 13.8%, and 6.4%, respectively. At the lowest subcooling of ΔTsub = 30 °C, erythritol cannot crystallize without the presence of bubbles. The size of the bubbles was found to have negligible effect as the complete crystallization time remains almost the same with the two bubble sizes.

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