Effect of liquid spreading due to nano/microstructures on the critical heat flux during pool boiling

By H. Ahn, HangJin Jo, S. Kang, Moohwan Kim. 2011

223 citations recorded by the source corpus.

It is well known that nanoparticles deposited on a heating surface during nanofluid boiling can change the characteristics of the heating surface and increase the critical heat flux (CHF) dramatically. We considered a new approach to investigate the nanoparticle surface effect on CHF enhancement using surfaces modified with artificial micro/nanostructures similar to deposited nanoparticle structures. We examined the effect of the surface wettability and liquid spreading ability on the CHF. The results demonstrated that the CHF enhancement on the modified surfaces was a consequence of both the improved surface wettability and the liquid spreading ability of the artificial micro/nanostructures.

Subfields: Biomedical Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/b6bb8bcfcb2bf513c6720ba0aa13bef62a606f92

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomedical Engineering

1. Gangtao Liang
2. I. Mudawar
3. H. Ahn
4. HangJin Jo
5. S. Kang
6. Moohwan Kim
7. Arun Majumdar
8. Satish G. Kandlikar

In Mechanical Engineering

1. Gangtao Liang
2. I. Mudawar
3. H. Ahn
4. Moohwan Kim
5. HangJin Jo
6. S. Kang
7. V. Srinivasan
8. Arun Majumdar

Citations in the corpus

• A study of nucleate boiling heat transfer on hydrophilic, hydrophobic and heterogeneous wetting surfaces (2011, background): “wetted surfaces [4,5,7].”
• Review of pool boiling enhancement by surface modification (2019, background): “[348,349] reported that the CHF enhancement for water with micro/nanostructures achieved by anodization was not the outcome of improved surface wettability alone, but improved liquid spreadability as well.”
• Critical heat flux of pool boiling on Si nanowire array-coated surfaces (2011, methodology): “There are at least four different models of CHF: (1) the Zuber [1] and Lienhard and Dhir [2] column Helmholtz–Taylor instability model, (2) the Katto vapor stem instability [24], (3) wettability [9–16], spreading ability [17] and surface capillarity [18,19] and (4) nucleation site density/bubble-dyn”