Influence of magnetic field on the thermal conductivity of the water based mixed Fe3O4/CuO nanofluid

Mixed Fe3O4/CuO nanofluid was selected and the role of external magnetic field with strength up to 0.2 T was studied on the thermal conductivity of the considered nanofluid with different basic parameters such as nanoparticle concentration and temperature of the base fluid. Thermal conductivity was measured using hot wire technique. Also the magnetic field applied uniformly to the nanofluid system regarding to the different situations of the field strength and weight percent of the both containing Fe3O4 and CuO nanoparticles. We found that the thermal conductivity of the pure and mixed Fe3O4 with CuO nanoparticle has significant enhancement at presence of the external magnetic field. However the rate of the thermal conductivity growth is strongly correlated with the magnetic field strength which is applied uniformly to the system. More results including measurement technique and conclusions are described in details at the context.