Dispersion and thermal conductivity of Al2O3 and TiO2 binary nanofluids

摘要：

　　The dispersion stabilities and thermal conductivities of Al2O3 and TiO2 ammonia water nanofluids are investigated by the absorbency index methods and transient double-hot-wire method,respectively.The results show that the dispersion stabilities of the two kinds of binary nanofluids are greatly improved by adding surfactants or increasing the ammonia content.The effective thermal conductivity ratios of the two kind of binary nanofluids increase with the increase of the content of nano-particles.It is the same with the increase of the ammonia content.The thermal conductivity will decrease with the rising of storage time by the role of natural sedimentation.The thermal conductivity of TiO2 nanofluid is more insensitive to the storage time than Al2O3 nanofluid because of its better dispersion stability

关键词： Binary Nanofluids Ammonia Water Surfactant Dispersion Thermal Conductivity

作者: Liu Yang Kai Du

作者单位: School of Energy and Environment, Southeast University, Nanjing, 210096, China

会议类型: 国际会议

会议名称: the 2012 International Conference on Materials Science and Nanotechnology (2012年材料科学与纳米技术国际会议(ICMSN 2012))

会议地点: 广州

会议语种:英文

页码: 442-445

在线出版日期: 2012-11-16（万方平台首次上网日期，不代表论文的发表时间）