| 储能陶粒填充石膏材料中颗粒分布分形及其对导热性能的影响 |
| |
| 引用本文： | 黄星星,胡小芳,朱圣晓,吴成宝.储能陶粒填充石膏材料中颗粒分布分形及其对导热性能的影响[J].中国粉体技术,2010,16(3):30-32,36. |
| |
| 作者姓名： | 黄星星 胡小芳 朱圣晓 吴成宝 |
| |
| 作者单位： | 1. 华南理工大学,机械与汽车工程学院,广东,广州,510640
2. 清华大学,材料科学与工程系,北京,100084 |
| |
| 摘 要： | 应用分形理论考察5种储能陶粒样品的粒度分布分形特征,结合灰色关联分析方法研究储能陶粒的粒度分布分形维对石膏板导热系数的影响。结果表明:各储能陶粒样品的体积累积频率和粒径与最大粒径比值的双对数值呈线形关系,相关系数均在0.95～0.98之间,强的相关表明各储能陶粒样品的粒度分布的分形结构是客观的;而且,随着温度的升高,粒度分布分形维对导热系数的影响逐渐减弱。
|
| 关 键 词： | 多孔陶粒 粒度分布 分形维 导热系数 |
Research on Particle Fractal Distribution in Power Storage Porous Clays-Gypsum Materials and Its Influence on Conductivity Factor |
| |
| Huang Xingxing,Hu Xiaofang,Zhu Shengxiao,Wu Chengbao.Research on Particle Fractal Distribution in Power Storage Porous Clays-Gypsum Materials and Its Influence on Conductivity Factor[J].China Powder Science and Technology,2010,16(3):30-32,36. |
| |
| Authors: | Huang Xingxing Hu Xiaofang Zhu Shengxiao Wu Chengbao |
| |
| Abstract: | The fractal dimensions of particle size distribution of power storage porous clays samples were calculated on the basis of fractal theory. The influence of fractal dimension on conductivity factor of phase change materials (PCM) gypsum board was analyzed by means of grey relational analysis. The results indicated that the relationship between the logarithmic volume accumulative frequency and logarithmic ratio of particle size to the maximum of particle size was linear, and the correlation coefficient varied from 0.95 to 0.98, good correlation revealed that the fractal structure of the power storage porous clays was objective. According to the calculated grey relational grade, the influence of fractal dimension on conductivity factor of phase change materials gypsum board became weaker with the increase of test temperature. |
| |
| Keywords: | porous clays particle size distribution fractal dimension conductivity factor |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
