Graphene has been investigated due to its mechanical, optical, and electrical properties. Graphene's effect on the heat transfer coefficient (HTC) and critical heat flux (CHF) in boiling applications has also been studied because of its unique structure and properties. Methods for coating graphene oxide (GO) now include spin, spray, and dip coating. In this work, graphene oxide coatings are spray coated on to a copper surface to investigate the effect of pressure on pool boiling performance. For example, at a heat flux of 30 W/cm2, the HTC increase of the GO-coated surface was 126.8% at atmospheric pressure and 51.5% at 45 psig (308 kPa). For both surfaces, the HTC increases with increasing pressure. However, the rate of increase is not the same for both surfaces. Observations of bubble departure showed that bubbles departing from the graphene oxide surface were significantly smaller than that of the copper surface even though the contact angle was similar. The change in bubble departure diameter is due to pinning from micro- and nanostructures in the graphene oxide coating or nonhomogeneous wettability. Condensation experiments at 40% relative humidity on both the plain copper surface and the graphene oxide coated surface show that water droplets forming on both surfaces are significantly different in size and shape despite the similar contact angle of the two surfaces.
Skip Nav Destination
Article navigation
November 2017
This article was originally published in
Journal of Heat Transfer
Research-Article
Boiling Performance of Graphene Oxide Coated Copper Surfaces at High Pressures
Nanxi Li,
Nanxi Li
Mem. ASME
Mechanical Engineering Department,
Kansas State University,
3002 Rathbone Hall,
Manhattan, KS 66506
e-mail: nli@ksu.edu
Mechanical Engineering Department,
Kansas State University,
3002 Rathbone Hall,
Manhattan, KS 66506
e-mail: nli@ksu.edu
Search for other works by this author on:
Amy Rachel Betz
Amy Rachel Betz
Mem. ASME
Mechanical Engineering Department,
Kansas State University,
3002 Rathbone Hall,
Manhattan, KS 66506
e-mail: arbetz@ksu.edu
Mechanical Engineering Department,
Kansas State University,
3002 Rathbone Hall,
Manhattan, KS 66506
e-mail: arbetz@ksu.edu
Search for other works by this author on:
Nanxi Li
Mem. ASME
Mechanical Engineering Department,
Kansas State University,
3002 Rathbone Hall,
Manhattan, KS 66506
e-mail: nli@ksu.edu
Mechanical Engineering Department,
Kansas State University,
3002 Rathbone Hall,
Manhattan, KS 66506
e-mail: nli@ksu.edu
Amy Rachel Betz
Mem. ASME
Mechanical Engineering Department,
Kansas State University,
3002 Rathbone Hall,
Manhattan, KS 66506
e-mail: arbetz@ksu.edu
Mechanical Engineering Department,
Kansas State University,
3002 Rathbone Hall,
Manhattan, KS 66506
e-mail: arbetz@ksu.edu
1Corresponding author.
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received October 7, 2016; final manuscript received January 20, 2017; published online June 21, 2017. Assoc. Editor: Satish G. Kandlikar.
J. Heat Transfer. Nov 2017, 139(11): 111504 (6 pages)
Published Online: June 21, 2017
Article history
Received:
October 7, 2016
Revised:
January 20, 2017
Citation
Li, N., and Rachel Betz, A. (June 21, 2017). "Boiling Performance of Graphene Oxide Coated Copper Surfaces at High Pressures." ASME. J. Heat Transfer. November 2017; 139(11): 111504. https://doi.org/10.1115/1.4036678
Download citation file:
Get Email Alerts
Cited By
On Prof. Roop Mahajan's 80th Birthday
J. Heat Mass Transfer
Thermal Hydraulic Performance and Characteristics of a Microchannel Heat Exchanger: Experimental and Numerical Investigations
J. Heat Mass Transfer (February 2025)
Related Articles
Flow Visualization of Submerged Steam Jet in Subcooled Water
J. Heat Transfer (February,2016)
Nucleate Boiling Heat Transfer on Plain and Microporous Surfaces in Subcooled Water
J. Heat Transfer (August,2017)
Nucleate Boiling Comparison between Teflon-Coated Plain Copper and Cu-HTCMC in Water
J. Heat Transfer (August,2018)
How Nanostructures Affect Water Droplet Nucleation on Superhydrophobic Surfaces
J. Heat Transfer (November,2017)
Related Proceedings Papers
Related Chapters
Numerical Simulation of Nucleate Spray Cooling: Effect of Droplet Impact on Bubble Growth and Heat Transfer in a Thin Liquid Film
Inaugural US-EU-China Thermophysics Conference-Renewable Energy 2009 (UECTC 2009 Proceedings)
Nucleation of Bubbles in Perfluoropentane Droplets Under Ultrasonic Excitation
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
Chitosan-Based Drug Delivery Systems
Chitosan and Its Derivatives as Promising Drug Delivery Carriers