Numerical simulation on performance evaluation among metal and oxide based nanofluids for power savings application of a circular tube

The advancement of heat transfer techniques is a challenge to the researcher in this era. Implementation nanotechnology one potential which enhance rate significant amount. Subsequently, can reduce requirement pumping power. However, suspension nanoparticle with liquid produce new working fluid called nanofluid has better thermal and dynamic properties comparison
 pure introduced as typical technique area. In study, performance two categories nanofluids metal-based (Cu-water Ag-water) oxide-based (Al2O3-water, CuO-water, BeO-water) 1–5% volume fractions have been analysed for laminar flow region circular tube fully developed under 2D control finite element method. was range Reynolds numbers from 100 1000 constant flux 500 W/m2 applied on wall. For evaluating among nanofluids, Figure Merits (FOM), power, Nusselt number enhancement ratio, coefficient ratio base calculated compared. computational results show that terms coefficient, all provide higher compared water. Meanwhile, enhancement, required significantly power comparison saved 86.26% Ag-water nanofluid, 72.84% Cu-water, 42.36% 40.99% Al2O3-water, 26.58% BeO-water. Between mentioned highest lowest because their conductivity other properties. clearing over-pumping dimensionless FOM whereas value (1.863 nanofluid) (1.266 BeO-water). meantime, between also reveals BeO-water requirements. Lastly, study concluded nanoparticles capability save (86.26% by providing (26.58% fluid.