Condensation Heat Transfer from Surfaces Modified by Coating of Microscale Particles Using Thermal Spray Coating
摘要
The principal objective of this work is to study the steam condensation process influenced by varying surface morphology created on a copper substrate by the deposition of microparticles using thermal spray coating technique. A copper substrate is coated with microparticles of tungsten carbide and aluminium oxide. The surface characteristics of both the untreated and coated samples were analyzed using a stylus profilometer, SEM, and EDX. Film condensation experiments were then conducted on both the untreated copper plate and the coated samples. The results demonstrate that surfaces with varying morphologies show a significant difference in condensation heat transfer performance. Specifically, the copper substrate coated with aluminium oxide microparticles exhibited a 120% improvement in condensation performance compared to the untreated surface.