纳米铝粉/石蜡复合相变储能材料的性能研究

材料导报, 2009, 23(24): 20-22.

纳米铝粉/石蜡复合相变储能材料的性能研究

杨硕 ^1, , 汪南 ^2, , 吴淑英 ^3, , 相玲玲 ^4, , 章勇珍 ^5, , 朱冬生 ^6,

1.华南理工大学传热强化与过程节能教育部重点实验室,广州,510640

2.华南理工大学传热强化与过程节能教育部重点实验室,广州,510640

3.华南理工大学传热强化与过程节能教育部重点实验室,广州,510640

4.广州万宝集团有限公司技术中心,广州,510470

5.广州万宝集团有限公司技术中心,广州,510470

6.华南理工大学传热强化与过程节能教育部重点实验室,广州,510640

基金项目: 广州市科技计划(2008Z1-1061)

关键词：纳米铝粉 , 相变材料 , 导热系数 , DSC测试

Study on Performance of Nano-aluminum/Paraffin Wax Composite Phase Change Materials

YANG Shuo ^1, , WANG Nan ^2, , WU Shuying ^3, , XIANG Lingling ^4, , ZHANG Yongzhen ^5, , ZHU Dongsheng ^6,

1.华南理工大学传热强化与过程节能教育部重点实验室,广州,510640

2.华南理工大学传热强化与过程节能教育部重点实验室,广州,510640

3.华南理工大学传热强化与过程节能教育部重点实验室,广州,510640

4.广州万宝集团有限公司技术中心,广州,510470

5.广州万宝集团有限公司技术中心,广州,510470

6.华南理工大学传热强化与过程节能教育部重点实验室,广州,510640

Keywords： nano-aluminum , PCM , thermal conductivity , DSC measurement

针对石蜡作为固-液相变储能材料存在导热系数小、传热性能差的缺点,采用两步法制备了分散性较好的纳米铝粉/石蜡复合相变材料,并对其热物性能进行了实验研究.研究表明,纳米铝粉的加入有效地提高了石蜡相变储能材料的导热系数,而对相变潜热和相变温度影响不大.

Based on paraffin wax as a solid-liquid phase change material(PCM)having the disadvantages of small thermal conductivity and bad pedormance of heat transfer,nano-aluminum/paraffin wax composite phase change materials are prepared by two steps and their thermophysical properties are measured.The results show that the addition of nano-aluminum powder improves the thermal conductivity of paraffin wax phase change material effectively,while the latent heat and transformation temperature change little.

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