| 相变材料微胶囊表面吸附纳米颗粒对传热过程的影响 |
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| 引用本文： | 王亮,林贵平. 相变材料微胶囊表面吸附纳米颗粒对传热过程的影响[J]. 航空动力学报, 2011, 26(9): 1947-1952 |
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| 作者姓名： | 王亮 林贵平 |
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| 作者单位： | 北京航空航天大学 航空科学与工程学院,北京 100191 |
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| 基金项目： | 国家自然科学基金(50436020); 中国博士后科学基金(20100470187) |
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| 摘 要： | 通过对相变材料微胶囊、纳米颗粒和基液之间传热过程的仿真计算,分析了纳米颗粒的数目、粒径和热导率对微胶囊与流体之间传热Nu的影响.进而采用数值方法研究了吸附纳米颗粒后,微胶囊-流体传热系数的提高对相变过程的影响,研究结果为纳米颗粒的强化传热机制提供了部分理论依据.
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| 关 键 词： | 相变材料微胶囊 相变 纳米颗粒 纳米流体 强化传热 |
| 收稿时间： | 2010-09-02 |
| 修稿时间： | 2010-11-12 |
Effect of microencapsulated phase change material absorbing nanoparticles on heat transfer |
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| WANG Liang and LIN Gui-ping. Effect of microencapsulated phase change material absorbing nanoparticles on heat transfer[J]. Journal of Aerospace Power, 2011, 26(9): 1947-1952 |
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| Authors: | WANG Liang and LIN Gui-ping |
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| Affiliation: | School of Aeronautics Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | By numerical simulation of the heat transfer among nanoparticles, microencapsulated phase change material(MPCM) and liquid, the factors such as nanoparticle amount, diameter and thermal conductivity, which affect the MPCM-liquid heat transfer Nusselt number, were analyzed. When MPCM absorbed nanoparticles, the effect of the increase of the MPCM-liquid heat transfer coefficient on the phase change period was also studied numerically, providing a theoretical basis for the mechanism of enhancing the heat transfer with nanoparticle. |
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| Keywords: | microencapsulated phase change material phase change nanoparticle nanofluid enhanced heat transfer |
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