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

Influence of surface contamination on the wettability of heat transfer surfaces

Journal Article · · International Journal of Heat and Mass Transfer
 [1];  [2];  [2];  [2]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

In this study, the wettability of heat transfer surfaces plays an important role in liquid–vapor phase change phenomena, including boiling incipience, the critical heat flux, the Leidenfrost transition, and condensation. The influence of adsorbed surface contamination at the nanoscale, though seldom considered, can have a profound impact on wetting behavior. This study quantitatively investigates the impact of contaminant layer thickness on wettability. Various cleaning treatments are explored on zirconium and 6061 aluminum to determine the effect on contaminant and oxide layer thickness. Angle-resolved X-ray photoelectron spectroscopy can be used to measure the thickness of oxide and contaminant layers, which is then correlated to wettability by measuring the equilibrium contact angle. Results indicate that even after solvent cleaning, the contact angle of water on practical heat transfer surfaces is dominated by a hydrocarbon contaminant overlayer around five nanometers thick.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1184597
Alternate ID(s):
OSTI ID: 1245283
Report Number(s):
SAND--2014-20008J; 547264
Journal Information:
International Journal of Heat and Mass Transfer, Journal Name: International Journal of Heat and Mass Transfer Journal Issue: C Vol. 91; ISSN 0017-9310
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (26)

The roles of capillary wicking and surface deposits in the attainment of high pool boiling burnout heat fluxes journal May 1964
An experimental investigation of the inherent uncertainty in pool boiling critical heat fluxes to saturated water journal July 1964
Comparison of the Tougaard, ARXPS, RBS and ellipsometry methods to determine the thickness of thin SiO2 layers journal January 2002
Random uncertainties in AES and XPS: I: Uncertainties in peak energies, intensities and areas derived from peak synthesis journal May 1992
Determination of overlayer thickness by angle-resolved XPS: A comparison of algorithms journal February 1993
Influence of the surface chemistry on the wettability of stainless steel journal September 1994
The maximum and minimum values of the heat Q transmitted from metal to boiling water under atmospheric pressure journal December 1966
Thermodynamics of contact angles. I. Heterogeneous solid surfaces journal February 1972
Wettability of clean metal surfaces journal August 1984
The London—van der Waals attraction between spherical particles journal October 1937
Practical correction procedures for elastic electron scattering effects in ARXPS journal June 2001
The surface energy of metals journal August 1998
The assessment of metal surface cleanliness by XPS journal April 2006
Nanofluid boiling: The effect of surface wettability journal December 2008
Surface wettability change during pool boiling of nanofluids and its effect on critical heat flux journal September 2007
Augmentation of nucleate boiling heat transfer and critical heat flux using nanoparticle thin-film coatings journal January 2010
On the quenching of steel and zircaloy spheres in water-based nanofluids with alumina, silica and diamond nanoparticles journal May 2009
Interfacial Lifshitz-van der Waals and polar interactions in macroscopic systems journal September 1988
Attractive Forces At Interfaces journal December 1964
The Wetting of Gold and Platinum by Water journal December 1965
Additive and nonadditive surface tension components and the interpretation of contact angles journal July 1988
Effect of Droplet Morphology on Growth Dynamics and Heat Transfer during Condensation on Superhydrophobic Nanostructured Surfaces journal January 2012
The Composition of Metal Surfaces After Atmospheric Exposure: An Historical Perspective journal April 2008
A Theoretical Model to Predict Pool Boiling CHF Incorporating Effects of Contact Angle and Orientation journal April 2001
Plasma cleaning of metal surfaces journal May 1974
Contact angle, wetting, and adhesion: a critical review journal January 1992

Cited By (1)

Hydrophilic and hydrophobic materials and their applications journal September 2018

Similar Records

Radiation Induced Surface Activity Phenomenon: 1. Report - Surface Wettability on Metal Oxides
Conference · Mon Jul 01 00:00:00 EDT 2002 · OSTI ID:21072777

Asymmetric Wettability Directs Leidenfrost Droplets
Journal Article · Tue Dec 31 23:00:00 EST 2013 · ACS Nano · OSTI ID:1122683

Why ionizing radiation enhances surface wettability
Journal Article · Thu Feb 27 23:00:00 EST 2020 · Applied Surface Science · OSTI ID:1605721