Research Article

Influence of Sonication on the Stability and Thermal Properties of Al2O3 Nanofluids

Table 2

Thermal diffusivity of Al2O3 nanofluids, NPs type B (30 nm), prepared by using different sonication techniques at different NPs concentrations.

Concentration Bath Probe
Thermal diffusivity
(cm2/s) × 10−3
Thermal diffusivity enhancement %Thermal diffusivity
(cm2/s) × 10−3
Thermal diffusivity enhancement %

0.1251.446 ± 0.0030.91.448 ± 0.0011.1
0.251.461 ± 0.0022.11.473 ± 0.0022.9
0.51.478 ± 0.0043.21.498 ± 0.0034.6