Experimental Investigation of Thermophysical Properties of Nano Mineralogical Fluids

In this study, the thermophysical properties of nanoparticles containing bentonite, diatomite, sepiolite and clinoptilolite materials were determined. nano particles with a size of 50 nm were produced using a spex type high-energy mill. using these nanoparticles, nanoparticles containing 2% mineralogical material and 0.5% sodium dodecyl benzene sulfonate by mass were prepared by ultrasonic mixing for 5 hours. the thermal conductivity, specific heat and viscosity measurements from thermophysical properties have been experimentally measured. the greatest thermal conductivity and specific heat increase in the mineral nano-powders were obtained with the bentonite-containing nanofluid. it is concluded that the nano flux containing bentonite has higher thermal conductivity and specific heat than the other mineralogical nano-fluids because the amount of suspended nano particles is higher. it has been observed that the resistance to flow increases due to the particle-particle interaction generated by the nanoparticles in the nanofluids, resulting in an increase in viscosity compared to pure water.