A study on the mechanism of water vapour condensation inhibition by nanostructures on the copper surface

Liu, Xiaoyan; Zhang, Huanyu; Jiang, Hui; Yang, Yang; Feng, Shuai; Liang, Chonghao; Jia, Yongying

doi:10.1007/s10853-022-07828-y

Cited by 3 publications

(1 citation statement)

References 41 publications

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“…3 (c) for the pseudo-partial wetting case. It is also worth noting that for both effective interactions, the liquid-solid interaction is stronger at the bottom corners and weaker at the top corners of the barrier wall, consistent with observations from MD 40 and DFT 19,20 simulations.…”

Section: B Wetting On Grooved Surfacessupporting

confidence: 85%

Phase field simulation of liquid filling on grooved surfaces for complete, partial, and pseudo-partial wetting cases

Oktasendra

Jusufi

Konicek

et al. 2023

The Journal of Chemical Physics

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We develop and harness a phase field simulation method to study liquid filling on grooved surfaces. We consider both short-range and long-range liquid–solid interactions, with the latter including purely attractive and repulsive interactions as well as those with short-range attraction and long-range repulsion. This allows us to capture complete, partial, and pseudo-partial wetting states, demonstrating complex disjoining pressure profiles over the full range of possible contact angles as previously proposed in the literature. Applying the simulation method to study liquid filling on grooved surfaces, we compare the filling transition for the three different classes of wetting states as we vary the pressure difference between the liquid and gas phases. The filling and emptying transitions are reversible for the complete wetting case, while significant hysteresis is observed for the partial and pseudo-partial cases. In agreement with previous studies, we also show that the critical pressure for the filling transition follows the Kelvin equation for the complete and partial wetting scenarios. Finally, we find the filling transition can display a number of distinct morphological pathways for the pseudo-partial wetting cases, as we demonstrate here for varying groove dimensions.

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Section: B Wetting On Grooved Surfacessupporting

confidence: 85%

Phase field simulation of liquid filling on grooved surfaces for complete, partial, and pseudo-partial wetting cases

Oktasendra

Jusufi

Konicek

et al. 2023

The Journal of Chemical Physics

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Graphene coating reduces the heat transfer performance of water vapor condensation on copper surfaces: A molecular simulation study

Nurrohman,

Almisbahi,

Albeirutty

et al. 2023

Alexandria Engineering Journal

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Enhancement in Heat Transfer Performance of Water Vapor Condensation on Graphene-Coated Copper Surfaces: A Molecular Dynamics Study

Nurrohman,

Almisbahi,

Tocci

et al. 2024

Nanomaterials

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The condensation of water vapor plays a crucial role in various applications, including combating water scarcity. In this study, by employing molecular dynamics simulations, we delved into the impact of graphene coatings on water vapor condensation on copper surfaces. Unique to this work was the exploration of various levels of graphene coverage and distribution, a facet largely unexplored in prior investigations. The findings demonstrated a notable increase in the rate of water vapor condensation and heat transfer performance as the graphene coverage was reduced. Using graphene coverages of 84%, 68%, and 52%, the numbers of condensed water molecules were 664, 735, and 880 molecules/ns, respectively. One of the most important findings was that when using the same graphene coverage of 68%, the rate of water vapor condensation and heat transfer performance increased as the graphene coating became more distributed. The overall performance of the water condensation correlated well with the energy and vibrational interaction between the graphene and the copper. This phenomenon suggests how a hybrid surface can enhance the nucleation and growth of a droplet, which might be beneficial for tailoring graphene-coated copper surfaces for applications demanding efficient water vapor condensation.

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A study on the mechanism of water vapour condensation inhibition by nanostructures on the copper surface

Cited by 3 publications

References 41 publications

Phase field simulation of liquid filling on grooved surfaces for complete, partial, and pseudo-partial wetting cases

Phase field simulation of liquid filling on grooved surfaces for complete, partial, and pseudo-partial wetting cases

Graphene coating reduces the heat transfer performance of water vapor condensation on copper surfaces: A molecular simulation study

Enhancement in Heat Transfer Performance of Water Vapor Condensation on Graphene-Coated Copper Surfaces: A Molecular Dynamics Study

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