Optimization on the photo-thermal conversion performance of graphite nanoplatelets decorated phase change material emulsions

2018 ◽  
Vol 186 ◽  
pp. 340-348 ◽  
Author(s):  
Fangxian Wang ◽  
Ziye Ling ◽  
Xiaoming Fang ◽  
Zhengguo Zhang
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Thermal Conversion ◽  
Graphite Nanoplatelets ◽  
Conversion Performance ◽  
Change Material

scholarly journals Excellent Temperature-Control Based on Reversible Thermochromic Materials for Light-Driven Phase Change Materials System

Molecules ◽  
2019 ◽  
Vol 24 (8) ◽  
pp. 1623 ◽  
Author(s):  
Caixia Ren ◽  
Fangfang Liu ◽  
Malik Muhammad Umair ◽  
Xin Jin ◽  
Shufen Zhang ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Phase Change ◽  
Temperature Control ◽  
Phase Change Materials ◽  
Equilibrium Temperature ◽  
Thermal Conversion ◽  
Xenon Lamp ◽  
Material System ◽  
Conversion Performance ◽  
Change Material

Light-driven phase change materials (PCMs) have received significant attention due to their capacity to convert visible light into thermal energy, storing it as latent heat. However, continuous photo-thermal conversion can cause the PCMs to reach high thermal equilibrium temperatures after phase transition. In our study, a novel light-driven phase change material system with temperature-control properties was constructed using a thermochromic compound. Thermochromic phase change materials (TC-PCMs) were prepared by introducing 2-anilino-6-dibutylamino-3-methylfluoran (ODB-2) and bisphenol A (BPA) into 1-hexadecanol (1-HD) in various proportions. Photo-thermal conversion performance was investigated with solar radiation (low power of 0.09 W/cm2) and a xenon lamp (at a high power of 0.14 W/cm2). The TC-PCMs showed a low equilibrium temperature due to variations in absorbance. Specifically, the temperature of TC-PCM180 (ODB-2, bisphenol A and 1-HD ratio 1:2:180) could stabilize at 54 °C approximately. TC-PCMs exhibited reversibility and repeatability after 20 irradiation and cooling cycles.

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