Preparation and characterization of new nano-particle mixed as thermal storage material
| Autor: | Weijun Liu, Zhongxun Tian, Yuan Liu, Dongbo Tian, Shuhua Zhang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
020209 energy Energy Engineering and Power Technology 02 engineering and technology Temperature cycling Thermal energy storage Industrial and Manufacturing Engineering Subcooling Thermal conductivity 020401 chemical engineering Chemical engineering Latent heat Thermal 0202 electrical engineering electronic engineering information engineering Thermal stability 0204 chemical engineering Supercooling |
| Zdroj: | Applied Thermal Engineering. 163:114386 |
| ISSN: | 1359-4311 |
| DOI: | 10.1016/j.applthermaleng.2019.114386 |
| Popis: | A new nano-particle mixed as thermal storage material (CMN) was prepared with KAl(SO4)2·12H2O (M) and Na2SO4·10H2O (N) and nano-particle carbon (C) as a thermal conductive agent for thermal conductivity enhancing. The detailed thermo-physical properties and thermal energy storage performance were studied, including thermal conductivity, phase change temperature, latent heat, supercooling degree and thermal cycling stability. The results indicated that C, KAl(SO4)2·12H2O and Na2SO4·10H2O were physically mixed. The thermal conductivity of PCM increased from 0.546 W/(m·K) to 0.910 W/(m·K) because of the addition of 1 wt%C. 1 wt% C suppressed the subcooling of PCM from 2.9 °C to 1.8 °C. The DSC revealed that the phase change temperature and latent heat of CMN were 65.68 °C and 132.2 J/g. It indicated that CMN had good thermal stability after 100 thermal cycle tests. |
| Databáze: | OpenAIRE |
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