Immersion condensation on scalable oil-infused nanostructures for high performance thermal management

R. Xiao, N. Miljkovic, R. Enright, E. N. Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Enhancing condensation heat transfer is important for broad applications ranging from power generation to thermal management. Significant efforts have focused on easy removal of the condensate, yet the other desired properties of low contact angles and high nucleation densities for high heat transfer performance have been typically neglected. In this work, we demonstrate immersion condensation on scalable oil-infused copper oxide nanostructures with heterogeneous coatings, where water droplets nucleate immersed within the oil. The combination of surface energy heterogeneity, reduced oil-water interfacial energy, and surface structuring enabled a drastically increased nucleation density while maintaining easy condensate removal. Accordingly, we demonstrated approximately a 100% increase in heat transfer coefficient compared to state-of-the-art dropwise condensation surfaces in the presence of non-condensable gases. Such surfaces promise wide application in a variety of heat transfer and resource conserving systems.

Original languageEnglish (US)
Title of host publication2013 Transducers and Eurosensors XXVII
Subtitle of host publicationThe 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013
Pages2807-2810
Number of pages4
DOIs
StatePublished - Dec 1 2013
Externally publishedYes
Event2013 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013 - Barcelona, Spain
Duration: Jun 16 2013Jun 20 2013

Publication series

Name2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013

Other

Other2013 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013
CountrySpain
CityBarcelona
Period6/16/136/20/13

Keywords

  • composite surface
  • condensation heat transfer
  • heterogeneous surface
  • nanostructure

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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    Xiao, R., Miljkovic, N., Enright, R., & Wang, E. N. (2013). Immersion condensation on scalable oil-infused nanostructures for high performance thermal management. In 2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013 (pp. 2807-2810). [6627389] (2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013). https://doi.org/10.1109/Transducers.2013.6627389