Investigation on Thermal Conductivity of Al2O3 Nanofluids
Al2O3 nanofluids were prepared by homogenously dispersing nanoscale Al2O3 powders, with 1％, 2％, 3％ and 4％ volume concentration, into ethanol, ethylene glycol and glycerine respectively. The thermal conductivities of as-prepared nanofluids were determined with self-made measuring cell. The results indicated that the increment of thermal conductivities ?λ of all nanofluids increased with Al2O3 concentration increasing. Al2O3/ethylene glycol nanofluid presented the highest △λ, 31.56％ under 4％ concentration. With temperature ascending, the △λ of Al2O3/ethanol nanofluid showed positive dependence. While the △λ of Al2O3/ethylene glycol and Al2O3/glycerine nanofluids kept little variation.
nanofluids alumina thermal conductivity
黎阳 陈立飞 于伟 谢华清
上海第二工业大学城市建设与环境工程学院 上海浦东 201209
国际会议
成都
英文
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）