Wettability Change Due To Nanoparticle Deposition During Nanofluid Boiling

Nanofluid pool boiling is assessed as a technique for controlled nanoparticle deposition, which can produce surfaces with enhanced nucleate boiling performance. This work presents nanoparticulate deposits obtained during Cu-water (1.6 wt.%) nanofluid pool boiling on a roughened copper surface. The deposited thin nanoparticle layer did not notably change the surface roughness but the wettability was drastically modified, leading to a different behavior of the surface during repeated DI water boiling experiments.