Particulate fouling of CuO–water nanofluid at isothermal diffusive condition inside the conventional heat exchanger-experimental and modeling

Boiling Heat Transfer of Alumina Nano-Fluids: Role of Nanoparticle Deposition on the Boiling Heat Transfer Coefficient

“…It was found that the CHF of the GO/water nanofluid was enhanced about 100% in comparison with those of experimentally measured for base fluid. In our previous studies [16][17][18][19][20], it was found that boiling heat transfer coefficient as a thermal performance criterion can be deteriorated up to 40% for nano-fluids over the extended time. More importantly, deposition of nanoparticles on the heating section can change the surface characteristics, which influences on the roughness and subsequently, the number of nucleation sites.…”

“…Results indicated that the quenching time increased. Lee et al [16] performed experimental investigations on flow boiling CHF of graphene oxide, (GO) nano-fluid. experiments were carried out for round tubes with 0.5 inch nominal diameter and 0.5 m heating length under low pressure and low flow (LPLF) at two fixed inlet temperatures (25 and 50 °C) and at four different mass fluxes.…”

Boiling Thermal Performance of TiO2 Aqueous NanoFluids as a Coolant on a Disc Copper Block

“…The main reason for this fact can be referred to the fouling formation of nano-particles on the surface, intensification of capillary wicking and also changing in other surface characteristics such as contact angle due to the deposition. Sarafraz et al [6][7][8][9][10] established experimental studies on fouling formation and heat transfer characteristics of metal oxide nano-fluids and showed that fouling is a negative parameter which influence on bubble formation and heat transfer rate. In fact, depending on the surface roughness and type of nanoparticles enhancement/deterioration of heat transfer coefficient can be seen for nano-fluids.…”

Thermal Performance and Viscosity of Biologically Produced Silver/Coconut Oil Nanofluids

“…Therefore, the main uncertainty for the heat transfer coefficient as thermal performance index is 16.234 %. More information about uncertainty analysis can be found in our previous publication 37 .…”