Sudarmadji Sudarmadji, Sudjito Soeparman, Slamet Wahyudi, Nurkholis Hamidi
This paper discusses pressure drop in circular pipes with Al2O3-water nanofluid laminar flow regimes with cooling processes and different Al2O3 volume concentrations of 0.15 to 0.5%. This study found that the addition of small amounts of nanoparticles to the base fluid increased pressure drop and in proportion to the increased in the Reynold number and particle volume concentrations. For these results the traditional equation for calculating pressure drop fails to accurately estimate the pressure drop for higher volume concentrations (0.5%). Accordingly, this study developed a new empirical correlation for friction factor cooling process for low volume concentrations in laminar flows. The maximum deviations between of the experimental pressure drop results and new correlation were reduced to within -9% and 12% respectively. © Research India Publications.
Mechanical Engineering Department, Brawijaya University, Malang 65145, Jl. Mayjend. Haryono No 167, Indonesia; Mechanical Engineering Department, Malang State Polytechnic, Malang 65141, Jl. Soekarno Hatta No.9 Po. BOX 04, Indonesia; Department of Mechanical Engineering, Brawijaya University, Malang 65145, Jl. Mayjend. Haryono No 167, Indonesia
