Thermal-conductivity and thermal-diffusivity measurements of nanofluids by 3 omega method and mechanism analysis of heat transport
文献类型：期刊论文
| 作者 | Wang, Z. L.; Tang, D. W.; Liu, S.; Zheng, X. H.; Araki, N. |
| 刊名 | INTERNATIONAL JOURNAL OF THERMOPHYSICS
 |
| 出版日期 | 2007-08-01 |
| 卷号 | 28期号:4页码:1255-1268 |
| 关键词 | 3 omega method Brownian motion micro-convection nanofluids thermal conductivity thermal diffusivity |
| 英文摘要 | A 3 omega technique is developed for simultaneous determination of the thermal conductivity and thermal diffusivity of nanofluids. The 3 omega measuring system is established, in which a conductive wire is used as both heater and sensor. At first, the system is calibrated using water with known thermophysical properties. Then, the thermal conductivity and thermal diffusivity of TiO2/distilled water nanofluids at different temperatures and volume fractions and the thermal conductivity of SiO2 nanofluids with different carrier fluids (water, ethanol, and EG) are determined. The results show that the working temperature and the carrier fluid play important roles in the enhancement of thermal transport in nanofluids. These results agree with the predictions for the temperature dependence effect by the Brownian motion model and the micro-convection model. For SiO2 nanofluids, the thermal-conductance enhancement becomes strong with a decrease in the heat capacity of the carrier fluids. Finally, according to our results and mechanism analysis, a corrected term is introduced to the Brownian motion model for providing better prediction of heat transport performance in nanofluids. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Thermodynamics ; Chemistry, Physical ; Mechanics ; Physics, Applied |
| 研究领域[WOS] | Thermodynamics ; Chemistry ; Mechanics ; Physics |
| 关键词[WOS] | TRANSFER ENHANCEMENT ; SUSPENSIONS ; PARTICLES ; NANOPARTICLES ; FLUIDS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000250581000012 |
| 公开日期 | 2015-12-22 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/106320]  |
| 专题 | 工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI） |
| 作者单位 | 1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100080, Peoples R China 2.Shizuoka Univ, Dept Mech Engn, Hamamatsu, Shizuoka 4328561, Japan |
| 推荐引用方式 GB/T 7714 | Wang, Z. L.,Tang, D. W.,Liu, S.,et al. Thermal-conductivity and thermal-diffusivity measurements of nanofluids by 3 omega method and mechanism analysis of heat transport[J]. INTERNATIONAL JOURNAL OF THERMOPHYSICS,2007,28(4):1255-1268. |
| APA | Wang, Z. L.,Tang, D. W.,Liu, S.,Zheng, X. H.,&Araki, N..(2007).Thermal-conductivity and thermal-diffusivity measurements of nanofluids by 3 omega method and mechanism analysis of heat transport.INTERNATIONAL JOURNAL OF THERMOPHYSICS,28(4),1255-1268. |
| MLA | Wang, Z. L.,et al."Thermal-conductivity and thermal-diffusivity measurements of nanofluids by 3 omega method and mechanism analysis of heat transport".INTERNATIONAL JOURNAL OF THERMOPHYSICS 28.4(2007):1255-1268. |
入库方式： OAI收割
来源：工程热物理研究所
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