论文部分内容阅读
Paraffin/γ-Al2O3 composites as phase change energy storage materials were prepared by absorbing paraffin in porous network of γ-Al2O3.In the composite materials,paraffin was used as a phase change material(PCM)for thermal energy storage,and γ-Al2O3 acted as supporting materials.Characterizations were conducted to evaluate the energy storage performance of the composites,and differential scanning calorimeter results showed that the PCM-3 composite has melting latent heat of 112.9 kJ/kg with a melting temperature of 62.9 ℃.Due to strong capillary force and surface tension between paraffin and γ-Al2O3,the leakage of melted paraffin from the composites can be effectively prevented.Therefore,the paraffin/γ-Al2O3 composites have a good thermal stability and can be used repeatedly.
Paraffin / γ-Al2O3 composites as phase change energy storage materials were prepared by absorbing paraffin in porous network of γ-Al2O3.In the composite materials, paraffin was used as a phase change material (PCM) for thermal energy storage, and γ-Al2O3 acted as supporting materials. Characterizations were conducted to evaluate the energy storage performance of the composites, and differential scanning calorimeter results showed that PCM-3 composite has a latent heat of 112.9 kJ / kg with a melting temperature of 62.9 ° C. capillary force and surface tension between paraffin and γ-Al 2 O 3, the leakage of melted paraffin from the composites can be advantage prevented.Therefore, the paraffin / γ-Al 2 O 3 composites have a good thermal stability and can be used repeatedly.