“…Also, increase in nanofluid temperature greatly promotes thermal conductivity [ [28] , [29] , [30] , [31] , [32] ]. On the other hand, increasing nanoparticle density and decreasing nanofluid temperature, boost the nanofluid viscosity [ 14 , 25 , [33] , [34] , [35] , [36] , [37] , [38] , [39] , [40] ]. Therefore, nanofluids rheological behavior can be considered as a significant factor affecting heat transfer, efficiency, and also costs.…”