| 二氧化钛纳米流体的固液相变特性 |
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| 引用本文： | 贾莉斯,陈颖,莫松平.二氧化钛纳米流体的固液相变特性[J].工程热物理学报,2011(11):1913-1916. |
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| 作者姓名： | 贾莉斯 陈颖 莫松平 |
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| 作者单位： | 广东工业大学材料与能源学院; |
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| 基金项目： | 国家自然科学基金资助项目(No.50876022) |
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| 摘 要： | 采用“两步法”制备出不同浓度的TiO2-H2O纳米流体，选用紫外分光光度法对纳米流体的分散稳定性进行了评价，使用差示扫描量热仪对纳米流体以及基液一去离子水的固液相变过程进行了测试。实验结果表明：纳米流体的分散稳定性随着TiO2粒子质量浓度的增大先增强后减弱；添加纳米颗粒可以促进去离子水的异质成核，减小其固液相变过冷度；...
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| 关 键 词： | 纳米流体 质量浓度 分散稳定性 过冷度 相变潜热 |
Solid-Liquid Phase Change Property of Titanium Dioxide Nanofluid |
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| JIA Li-Si CHEN Ying MO Song-Ping.Solid-Liquid Phase Change Property of Titanium Dioxide Nanofluid[J].Journal of Engineering Thermophysics,2011(11):1913-1916. |
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| Authors: | JIA Li-Si CHEN Ying MO Song-Ping |
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| Institution: | JIA Li-Si CHEN Ying MO Song-Ping (Faculty of Material and Energy,Guangdong University of Technology,Guangzhou 510006,China) |
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| Abstract: | TiO_2-H_2O nanofluids were prepared by a two-step method.Their dispersion stabilities and solid-liquid phase change properties were measured by ultraviolet spectrophotometer and differential scanning calorimeter(DSC),respectively.The results showed that nanofluids' stabilities were first increased and then decreased as concentrations of TiO_2 nanoparticles increased.Their supercooling degrees were all lower than that of deionized water(DW),which suggests that addition of TiO_2 nanoparticles can promote hete... |
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| Keywords: | nanofluid mass concentration dispersion stability supercooling degree latent heat |
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