Thermal conductivity enhancement of SWCNT-SiO2/EG-water hybrid nanofluid: An experimental study

In the present study thermal conductivity of SWCNTSiO2/EG-water nanofluid is empirically investigated. To do so single-walled carbon nanotubes (SWCNT) with an inner diameter of 0.8-1.6 nm and outer diameter of 1-2 nm and SiO2 nanoparticles with diameters of 20- 30 nm were mixed together with the ratio of 10 to 90. Various samples with solid volume fractions from 0.15 to 1.92% were composed and their thermal conductivity ratio was measured at temperatures within 27 up to 50◦C. Analyzing the results signified that temperature and solid volume fraction increment would result in thermal conductivity enhancement as at temperature of 50◦C and a solid volume fraction of 1.94%, thermal conductivity was improved by 32.5%.

کلیدواژه ها:

Hybrid nanofluids ، Thermal conductivity enhancement ، Single wall carbon nanotubes