相变微胶囊的吸热系数测量  

Thermal Effusivity Measurement of Phase Change Materials Microcapsules

作　　者：郑兴华[1] 邱琳[1] 李兰兰[1,2] 岳鹏[1,2] 王刚[1] 唐大伟[1] 

机构地区：[1]中国科学院工程热物理研究所,北京100190 [2]中国科学院大学,北京100049

出　　处：《工程热物理学报》2013年第9期1692-1694,共3页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.51106151);国家重大科学研究计划资助项目(No.2012CB933200);吴仲华奖励基金资助

摘　　要：提出应用3ω谐波探测技术进行脲醛树脂-石蜡相变微胶囊的有效吸热系数的测量方法。测试了跨越相变温度区间的微胶囊有效吸热系数,分析了有效吸热系数随温度的变化关系。在其相变温度区间内,有效吸热系数存在极大值,该极值点对应的温度与其相变温度峰值一致。A 3ω approach was developed to determinate the effective thermal effusivity of phage change materials microcapsules based on urea-formaldehyde and paraffin wax. The effective thermal effusivity of phage change materials microcapsules within the phage change temperatures range were measured using the established system. At the same time, the relationship between the effectiw; thermal effusivity and temperature was analyzed value within the phase change temperature range The effective thermal effusivity reaches its peak and its temperature peak value is consistent withthe phase change temperature peak value.

关 键 词：谐波探测 有效吸热系数 相变微胶囊 

分 类 号：TV13[水利工程—水力学及河流动力学]