Sustaining Superheated Liquid within Hydrophilic Surface Texture

Paul R. Jones, Ashley R. Elliott, Neelesh A. Patankar*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

During pool boiling of water, it is advantageous to keep liquid touching the surface in order to delay the onset of filmwise boiling. This allows water to remain in the nucleate boiling regime, leading to increased heat transfer. In this work, we propose a mechanism to sustain superheated liquid within hydrophilic pores. This mechanism for the design of superwetting hydrophilic surfaces does not rely on the transport of vapor and offers an additional pathway for wetting via the condensation of vapor within the surface texture. We adapt nucleation theory to design the surface geometry and implement molecular dynamics simulations to verify this concept. Simulation results are consistent with theory and demonstrate superheated liquid residing within the surface texture.

Original languageEnglish (US)
Pages (from-to)12947-12953
Number of pages7
JournalLangmuir
Volume32
Issue number48
DOIs
StatePublished - Dec 6 2016

Funding

This work was partially supported by the U.S. Department of Energy, Office of Science, Office of Workforce Development for Teachers and Scientists, Office of Science Graduate Student Research (SCGSR) program under contract number DE-AC05- 06OR23100. Additionally, this research was supported in part through the computational resources and staff contributions provided for the Quest high-performance computing facility at Northwestern University. Support from the McCormick Catalyst Award at Northwestern University is also acknowledged.

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Spectroscopy
  • General Materials Science
  • Surfaces and Interfaces
  • Electrochemistry

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