Electrophoretic deposition surfaces to enhance HFE-7200 pool boiling heat transfer and critical heat flux
(2019) In International Journal of Thermal Sciences 146.- Abstract
Modulated nanoparticle-coating surfaces were fabricated by an improved electrophoretic deposition technique in this study. Pool boiling experiments were studied for HFE-7200 on the modulated nanoparticle-coating surfaces, with a smooth surface and uniform coating surfaces as comparison. It was found that the present modulated coating surfaces can enhance the heat transfer coefficient and the critical heat flux by 60% and 20%–40%, respectively, in comparison to the smooth surface, while the uniform coating surface can improve heat transfer coefficients by maximum 100%, but cannot enhance critical heat fluxes. Heat transfer on the modulated nanoparticle-coating surfaces was theoretically analyzed by a mechanistic model which considered... (More)
Modulated nanoparticle-coating surfaces were fabricated by an improved electrophoretic deposition technique in this study. Pool boiling experiments were studied for HFE-7200 on the modulated nanoparticle-coating surfaces, with a smooth surface and uniform coating surfaces as comparison. It was found that the present modulated coating surfaces can enhance the heat transfer coefficient and the critical heat flux by 60% and 20%–40%, respectively, in comparison to the smooth surface, while the uniform coating surface can improve heat transfer coefficients by maximum 100%, but cannot enhance critical heat fluxes. Heat transfer on the modulated nanoparticle-coating surfaces was theoretically analyzed by a mechanistic model which considered free convection, transient conduction and microlayer evaporation. The heat transfer can be predicted by the model, especially at low-to-moderate heat fluxes. Additionally, referring to the bubble visualization at critical heat fluxes, possible mechanisms to trigger critical heat fluxes were discussed. Afterwards, a critical heat flux model originating from the Zuber hydrodynamic instability model, was employed to predict the experimental results, showing a good prediction ability.
(Less)
- author
- Cao, Zhen LU ; Wu, Zan LU ; Pham, Anh Duc and Sundén, Bengt LU
- organization
- publishing date
- 2019
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Bubble dynamics, Critical heat flux, Nanoparticle, Pool boiling
- in
- International Journal of Thermal Sciences
- volume
- 146
- article number
- 106107
- publisher
- Elsevier
- external identifiers
-
- scopus:85072273097
- ISSN
- 1290-0729
- DOI
- 10.1016/j.ijthermalsci.2019.106107
- language
- English
- LU publication?
- yes
- id
- f58fe7f0-2970-4e73-9692-d682bfc025f8
- date added to LUP
- 2019-09-27 14:06:22
- date last changed
- 2023-11-19 15:41:29
@article{f58fe7f0-2970-4e73-9692-d682bfc025f8,
abstract = {{<p>Modulated nanoparticle-coating surfaces were fabricated by an improved electrophoretic deposition technique in this study. Pool boiling experiments were studied for HFE-7200 on the modulated nanoparticle-coating surfaces, with a smooth surface and uniform coating surfaces as comparison. It was found that the present modulated coating surfaces can enhance the heat transfer coefficient and the critical heat flux by 60% and 20%–40%, respectively, in comparison to the smooth surface, while the uniform coating surface can improve heat transfer coefficients by maximum 100%, but cannot enhance critical heat fluxes. Heat transfer on the modulated nanoparticle-coating surfaces was theoretically analyzed by a mechanistic model which considered free convection, transient conduction and microlayer evaporation. The heat transfer can be predicted by the model, especially at low-to-moderate heat fluxes. Additionally, referring to the bubble visualization at critical heat fluxes, possible mechanisms to trigger critical heat fluxes were discussed. Afterwards, a critical heat flux model originating from the Zuber hydrodynamic instability model, was employed to predict the experimental results, showing a good prediction ability.</p>}},
author = {{Cao, Zhen and Wu, Zan and Pham, Anh Duc and Sundén, Bengt}},
issn = {{1290-0729}},
keywords = {{Bubble dynamics; Critical heat flux; Nanoparticle; Pool boiling}},
language = {{eng}},
publisher = {{Elsevier}},
series = {{International Journal of Thermal Sciences}},
title = {{Electrophoretic deposition surfaces to enhance HFE-7200 pool boiling heat transfer and critical heat flux}},
url = {{http://dx.doi.org/10.1016/j.ijthermalsci.2019.106107}},
doi = {{10.1016/j.ijthermalsci.2019.106107}},
volume = {{146}},
year = {{2019}},
}