Effect of cerium oxide nanoparticles on the thermal conductivity enhancement of distilled water
Paper ID : 1288-ICNS
zahra niazi, yusof janqamsari, mohsen ashjari *
Nanostructures and Biopolymers research Laboratory, Department of Chemical Engineering, Faculty of Engineering, University of Kashan, Kashan, 8731753153, Iran
nanofluids as a new class of nanotechnology-based heat transfer fluids use to improve the efficiency of heat transfer systems. This paper represents the results of an experimental study related to the thermal conductivity enhancement of distilled water using one nanoparticle. The nanofluid containing the cerium oxide nanoparticles with particle size distribution of 10-30 nm, dispersed in distilled water as base fluid was studied. The nanofluids were prepared at volume concentrations of 0.4, 0.8, 1, 1.5, 2 and 3 vol.% and experimented at different temperatures of 25, 35 and 45 C. A transient hot-wire apparatus was applied to measuring the thermal conductivity coefficient of obtained nanofluids. The results showed that the thermal conductivity was clearly increased with enhancement of the volume concentrations, indicating the positive effect of adding the nanoparticle. Also, a more effective thermal conductivity was observed at higher temperature for both base fluid and nanofluid. The highest enhancement of thermal conductivity based on 3 vol.% at temperature of 25C and 45 C were obtained about 7.78 % and 11.29 %, respectively.
Nanofluid, Nanoparticle, Thermal Conductivity, Cerium oxide, Volume Concentration
Status : Abstract Accepted (Poster Presentation)