INFLUENCE OF NANO-SCALE POWDERS ON ELECTRIC CONDUCTIVITY OF NANOFLUID IN REFRIGERATING SYSTEM

摘要：

In order to ensure the safety of refrigerating systems using nanofluid, experiments were done on the electric conductivities of nanofluids used in refrigerating systems. The nano-scale powders in the experimented nanofluids include four kinds of nanoparticles and four kinds of carbon nanotubes while the host fluids include R113 refrigerant, RB68 lubricating oil and the mixture of R113 and RB68. Influence of the material type and physical dimension of nano-scale powders as well as influence of the material type and temperature of the host fluids on electric conductivities were covered in the investigation. The measured electric conductivities of nanofluids are significantly higher than the predicted ones by Maxwell model and Hamilton-Crosser model. The electric conductivities of nanofluids in practical refrigerating systems are much less than the maximal allowable electric conductivity of fluids in refrigerating systems, meaning the nanofluids may be used in refrigerating systems safely.

作者: Weiting Jiang Guoliang Ding Hao Peng Haitao Hu

作者单位: Institute of Refrigeration and Cryogenics Shanghai Jiaotong University Shanghai, China, 200240 Depar Institute of Refrigeration and Cryogenics Shanghai Jiaotong University Shanghai, China, 200240

会议类型: 国际会议

会议名称: The Ninth Asian Thermophysical Properties Conference(第九届亚洲热物理性能会议 ATPC 2010)

会议地点: 北京

会议语种:英文

页码: 438-444

在线出版日期: 2010-10-19（万方平台首次上网日期，不代表论文的发表时间）