Preparation and thermal properties of oil-based nanofluid from multi-walled carbon nanotubes and engine oil as nano-lubricant

Experimental evaluation of thermal conductivity, viscosity and breakdown voltage AC of nanofluids of carbon nanotubes and diamond in transformer oil

“…In general, according to Figure 4, the predictions given by the model of Maxwell (1873) are drastically lower than the experimental data. On the other hand, the experimental data of Xuan and Li (2000) and Ettefaghi et al (2013), for nanofluids of oil-copper and oil-MWCNT, respectively, are reasonably close to the thermal conductivities measured in the present study. The differences between Maxwell's model and the experimental data are explained by the assumptions of Maxwell's model, such as, spherical particles and no particle interactions.…”

Morphology dependence of thermal and rheological properties of oil-based nanofluids of CuO nanostructures

“…Of all the different properties, thermal conductivity and viscosity are very important ones because they can affect the applicability of nanofluid. Although many researches have been working in this field, but a few experimental results have investigated the effect of morphology on the different properties of nanofluids [5,6].…”

“…But for lubricants such as engine oils with high viscosity, the dispersion of nanoadditives is very difficult by ultrasonication. Here, planetary ball mill was used for nanoadditives dispersion in the base fluids [5,6,9].…”

Enhanced Electrical Insulation and Heat Transfer Performance of Vegetable Oil Based Nanofluids

“…Zheng et al [25] utilized graphite suspensions (graphene volume fraction: 1%) to examine the thermal conductivity of different base fluids; they found that the effective thermal conductivity of the EG and poly -olefin oil base solutions was increased by 150% and 200%, respectively. Ettefaghi et al [26] added carbon nanotubes to engine oil and observed an increase by 13.2% when the mass fraction was 0.1% and so on. Numerous experiments indicated that the effective thermal conductivity of the nanofluids was substantially greater than that of the traditional solid-liquid two-phase suspension.…”