Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Enhanced condensation heat transfer using porous silica inverse opal coatings on copper tubes

Journal Article · · Scientific Reports
Abstract

Phase-change condensation is commonplace in nature and industry. Since the 1930s, it is well understood that vapor condenses in filmwise mode on clean metallic surfaces whereas it condenses by forming discrete droplets on surfaces coated with a promoter material. In both filmwise and dropwise modes, the condensate is removed when gravity overcomes pinning forces. In this work, we show rapid condensate transport through cracks that formed due to material shrinkage when a copper tube is coated with silica inverse opal structures. Importantly, the high hydraulic conductivity of the cracks promote axial condensate transport that is beneficial for condensation heat transfer. In our experiments, the cracks improved the heat transfer coefficient from ≈ 12 kW/m 2 K for laminar filmwise condensation on smooth clean copper tubes to ≈ 80 kW/m 2 K for inverse opal coated copper tubes; nearly a sevenfold increase from filmwise condensation and identical enhancement with state-of-the-art dropwise condensation. Furthermore, our results show that impregnating the porous structure with oil further improves the heat transfer coefficient by an additional 30% to ≈ 103 kW/m 2 K. Importantly, compared to the fast-degrading dropwise condensation, the inverse opal coated copper tubes maintained high heat transfer rates when the experiments were repeated > 20 times; each experiment lasting 3–4 h. In addition to the new coating approach, the insights gained from this work present a strategy to minimize oil depletion during condensation from lubricated surfaces.

Sponsoring Organization:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
Grant/Contract Number:
AR0000326
OSTI ID:
1784351
Journal Information:
Scientific Reports, Journal Name: Scientific Reports Journal Issue: 1 Vol. 11; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United Kingdom
Language:
English

References (58)

Convection Heat Transfer book January 2013
Thin Film Condensation on Nanostructured Surfaces journal February 2018
Fabrication of Photonic Microbricks via Crack Engineering of Colloidal Crystals journal December 2019
Stable Dropwise Condensation for Enhancing Heat Transfer via the Initiated Chemical Vapor Deposition (iCVD) of Grafted Polymer Films journal September 2013
Patterning Hierarchy in Direct and Inverse Opal Crystals journal March 2012
Tunable Microscale Porous Systems with Dynamic Liquid Interfaces journal February 2018
Versuche über die Kondensation von Wasserdampf in Film- und Tropfenform journal February 1930
Laminar film condensation along a vertical plate embedded in an anisotropic porous medium with oblique principal axes journal December 2015
Heat exchange at dropwise condensation in heat exchangers of desalination plants journal January 1989
Heat-transfer measurements during dropwise condensation of steam journal February 1964
An experimental study of heat transfer by dropwise condensation journal August 1965
Condensation heat transfer in the presence of noncondensables, interfacial resistance, superheating, variable properties, and diffusion journal October 1966
Theoretical study of laminar film condensation of flowing vapour journal June 1966
Condensation heat transfer in the presence of a non-condensable gas journal January 1968
Film condensation on a vertical plate imbedded in a porous medium journal January 1997
A review of organic rankine cycles (ORCs) for the recovery of low-grade waste heat journal July 1997
A loop-heat-pipe heat sink with parallel condensers for high-power integrated LED chips journal July 2013
Review of vapor condensation heat and mass transfer in the presence of non-condensable gas journal October 2015
Advances in seawater desalination technologies journal March 2008
A review on buildings energy consumption information journal January 2008
Experimental comparison of film-wise and drop-wise condensations of steam on vertical flat plates with the presence of air journal November 2004
Condensation heat transfer enhancement in the presence of non-condensable gas using the interfacial effect of dropwise condensation journal April 2008
High efficiency electric power generation: The environmental role journal April 2007
Emerging desalination technologies for water treatment: A critical review journal May 2015
Liquid-Infused Silicone As a Biofouling-Free Medical Material journal December 2014
Gravitationally Driven Wicking for Enhanced Condensation Heat Transfer journal January 2018
Capillary-Enhanced Filmwise Condensation in Porous Media journal October 2018
Stable Dropwise Condensation of Ethanol and Hexane on Rationally Designed Ultrascalable Nanostructured Lubricant-Infused Surfaces journal July 2019
Phase-Change Slippery Liquid-Infused Porous Surfaces with Thermo-Responsive Wetting and Shedding States journal June 2020
Why Are Water Droplets Highly Mobile on Nanostructured Oil-Impregnated Surfaces? journal March 2021
Polymer Infused Porous Surfaces for Robust, Thermally Conductive, Self-Healing Coatings for Dropwise Condensation journal November 2020
Depletion of Lubricant from Nanostructured Oil-Infused Surfaces by Pendant Condensate Droplets journal June 2020
Ice Adhesion on Lubricant-Impregnated Textured Surfaces journal October 2013
Wettability of Graphene journal March 2013
Effect of Droplet Morphology on Growth Dynamics and Heat Transfer during Condensation on Superhydrophobic Nanostructured Surfaces journal January 2012
Using Amphiphilic Nanostructures To Enable Long-Range Ensemble Coalescence and Surface Rejuvenation in Dropwise Condensation journal March 2012
Liquid-Infused Nanostructured Surfaces with Extreme Anti-Ice and Anti-Frost Performance journal June 2012
Enhanced Condensation on Lubricant-Impregnated Nanotextured Surfaces journal October 2012
Condensation on slippery asymmetric bumps journal February 2016
A bioinspired omniphobic surface coating on medical devices prevents thrombosis and biofouling journal October 2014
Immersion Condensation on Oil-Infused Heterogeneous Surfaces for Enhanced Heat Transfer journal June 2013
Planar jumping-drop thermal diodes journal December 2011
Multicomponent nucleation and droplet growth in natural gas journal September 1998
Assembly of large-area, highly ordered, crack-free inverse opal films journal May 2010
Nanostructured materials for water desalination journal June 2011
Self-Propelled Dropwise Condensate on Superhydrophobic Surfaces journal October 2009
Design of an Integrated Loop Heat Pipe Air-Cooled Heat Exchanger for High Performance Electronics journal October 2012
Diffusion Layer Theory for Turbulent Vapor Condensation With Noncondensable Gases journal November 1993
A Theoretical Study of Dropwise Condensation journal February 1975
Condensation Heat Transfer in the Presence of a Noncondensable Gas journal August 1964
A Boundary-Layer Treatment of Laminar-Film Condensation journal February 1959
Modeling and Optimization of Superhydrophobic Condensation journal September 2013
Four billion people facing severe water scarcity journal February 2016
Hydrophilic directional slippery rough surfaces for water harvesting journal March 2018
An Investigation into the Condensation of Steam journal June 1953
Liquid film condensation along a vertical surface in a thin porous medium with large anisotropic permeability journal November 2014
Turbulent Condensation on a Cold Wall in the Presence of a Noncondensable Gas journal February 1984
Condensation heat transfer on superhydrophobic surfaces journal May 2013

Similar Records

Composite Structured Surfaces for Durable Dropwise Condensation
Journal Article · Thu May 21 20:00:00 EDT 2020 · International Journal of Heat and Mass Transfer · OSTI ID:1841432

ADVANCED HEAT EXCHANGERS USING TUNABLE NANOSCALE-MOLECULAR ASSEMBLY
Technical Report · Wed Dec 31 23:00:00 EST 2003 · OSTI ID:826370

On the enhancement of filmwise condensation heat transfer by means of the coexistence with dropwise condensation sections
Journal Article · · Experimental Heat Transfer; (USA) · OSTI ID:5758035

Related Subjects