Molecular Dynamic Study of Dropwise Condensation on the Metal Surface Coated by a Monolayer Polymer Network

doi:10.7523/j.issn.2095-6134.2004.1.004

Abstract

Abstract:

By complexing a kind of polymer network onto the copper surface,a new model of dropwise condensation for water vapor is proposed. It is contended that the monolayer spread film can be tightly attached to the metal surface by a number of coordination bonds and can be self- repairable,so that longer duration and higher heat transfer efficiency may be anticipated.A criterion of dropwise or filmwise condensation was in-troduced and MD simulations were carried out to calculate the cohesive energy of water and adsorptive energy of surface. The results indicate that dropwise condensation can occur on the polymer network surface,and the particle configurations indicate that the big rings of the network may play the role of nucleation center sites.

Key words: dropwise condensation, polymer network, MD, nucleation center site

CLC Number:

TK124

Liang Shi-qiang, Xu Jing-zhong. Molecular Dynamic Study of Dropwise Condensation on the Metal Surface Coated by a Monolayer Polymer Network[J]. , 2004, 21(1): 26-32.

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