Limits of dropwise condensation heat transfer on dry nonwetting surfaces.

ABSTRACT: Surface condensation is ubiquitous in applications such as power generation and desalination. Nonwetting surfaces have been studied extensively for their dropwise condensation potential with reports of dramatic improvements relative to the classical Nusselt equation for film-wise condensation that has long served as a reference theoretical lower bound on the condensation heat transfer coefficient. However, a theoretical upper bound on the maximum possible condensation heat transfer over a given surface is not available. Considering actual surface topographies as fractal surfaces, we present theoretical upper bounds for gravity-driven and jumping droplet condensation modes in a unified manner. Experimental data on steam condensation from this study as well as the litera

SUBMITTER: Hatte S 

PROVIDER: S-EPMC11532946 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature