scholarly journals Characterization and Reliability of Caprylic Acid-Stearyl Alcohol Binary Mixture as Phase Change Material for a Cold Energy Storage System

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7418
Author(s):  
Hamza Ayaz ◽  
Veerakumar Chinnasamy ◽  
Honghyun Cho
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Caprylic Acid ◽  
Solid Phase ◽  
Eutectic Point ◽  
Potential Candidate ◽  
Stearyl Alcohol ◽  
Percentage Difference ◽  
Change Material

This study reports the in-depth investigation of the thermophysical properties and thermal reliability of caprylic acid-stearyl alcohol (CA-SA) eutectic phase change material (PCM) for cooling applications. The phase diagram of CA-SA showed a eutectic point at a 90:10 molar ratio. The onset melting/freezing temperature and latent heat of fusion of caprylic acid-stearyl alcohol from the differential scanning calorimetry (DSC) were 11.4 °C/11.8 °C and 154.4/150.5 J/g, respectively. The thermal conductivity for the prepared eutectic PCM in the solid phase was 0.267 W/m.K (0 °C), whereas, in the liquid phase, it was 0.165 W/m.K (20 °C). In addition, the maximum relative percentage difference (RPD) marked at the end of 200 thermal cycles was 5.2% for onset melting temperature and 18.9% for phase change enthalpy. The Fourier transform infrared spectroscopy (FT-IR) result shows that the eutectic PCM holds good chemical stability. Corrosion tests showed that caprylic acid-stearyl alcohol could be a potential candidate for cold thermal energy storage applications.

A facile synthesis of solid-solid phase change material for thermal energy storage

2017 ◽  
Vol 117 ◽  
pp. 622-628 ◽  
Author(s):  
Weibo Kong ◽  
Xiaowei Fu ◽  
Zhimeng Liu ◽  
Changlin Zhou ◽  
Jingxin Lei
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Solid Phase ◽  
Facile Synthesis ◽  
Change Material

scholarly journals Cross-linked polyurethane as solid-solid phase change material for low temperature thermal energy storage

2020 ◽  
Vol 685 ◽  
pp. 178191
Author(s):  
Thibault Harlé ◽  
Giao T.M. Nguyen ◽  
Béatrice Ledesert ◽  
Yannick Mélinge ◽  
Ronan L. Hebert
Keyword(s):  
Energy Storage ◽  
Low Temperature ◽  
Phase Change ◽  
Phase Change Material ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Solid Phase ◽  
Change Material

Studies on Preparation and Properties of PEG/MMT Solid-Solid Phase Change Material

2012 ◽  
Vol 512-515 ◽  
pp. 1712-1715
Author(s):  
Xiao Hua Gu ◽  
Bao Yun Xu ◽  
Jia Liang Zhou ◽  
Shi Wei Li
Keyword(s):  
Thermal Stability ◽  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Phase Change Materials ◽  
Solid Phase ◽  
Energy Storage Materials ◽  
Scanning Calorimetry ◽  
Storage Behavior ◽  
Change Material

This paper details the preparation of one kind of PEG/MMT solid-solid phase change materials. With polyethylene glycol (PEG) as the phase change materials, montmorillonite (MMT) as skeletons, through the graft copolymerization method, prepare PEG/MMT solid-solid phase change energy storage materials. The structure, the phase transition behavior and thermal stability of PEG/MMT phase change materials were analyzed and studied by infrared spectroscopy (FTIR), thermogravimetry (TG) and differential scanning calorimetry (DSC), and studied the influence of different molecular weight PEG on the capability and structure of the material, polymer phase change energy storage behavior and crystallization behavior. Finally, The PEG/MMT solid-solid phase change material could improve enthalpy value and thermal stability.

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