Effect of temperature on the effective thermal conductivity of n-tetradecane-based nanofluids containing copper nanoparticles

- Thermal conductivities of Cu/n-tetradecane nanofluid were measured at different temperatures.
- Thermal conductivity increased with Cu fraction and decreased with temperature.
- The experimental data showed good agreement with model predictions.
- The temperature dependence of nanofluid may be attributed to interfacial thermal resistance.
- Base fluid dependence of nanofluid may be attributed to Brownian motion-induced nanoconvection.