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Pool boiling heat transfer enhancement of water by gold nanoparticles with an electrophoretic deposition method

Cao, Zhen LU ; Pham, Anh Duc; Wu, Zan LU ; Ruzgas, Tautgirdas LU ; Alber, Cathrine and Sunden, Bengt LU (2018) ASME 2018 International Mechanical Engineering Congress and Exposition, IMECE 2018 8B-2018.
Abstract


Saturated pool boiling heat transfer of water is investigated experimentally on copper surfaces with nanoparticle coatings at atmospheric pressure. The coatings are generated by an electrophoretic deposition method (EPD). Three modified surfaces are prepared with gold nanoparticles of 0.20 mg, 0.25 mg and 0.30 mg, respectively. During the deposition, ethanol works as the solvent while the electrical potential and deposition time are controlled as 9.5 V and 30 min, respectively. The experimental results show that heat transfer coefficients (HTC) and critical heat fluxes (CHF) are enhanced on the modified surfaces. HTC increases with decreasing thickness of the coating, while... (More)


Saturated pool boiling heat transfer of water is investigated experimentally on copper surfaces with nanoparticle coatings at atmospheric pressure. The coatings are generated by an electrophoretic deposition method (EPD). Three modified surfaces are prepared with gold nanoparticles of 0.20 mg, 0.25 mg and 0.30 mg, respectively. During the deposition, ethanol works as the solvent while the electrical potential and deposition time are controlled as 9.5 V and 30 min, respectively. The experimental results show that heat transfer coefficients (HTC) and critical heat fluxes (CHF) are enhanced on the modified surfaces. HTC increases with decreasing thickness of the coating, while CHF increases with increasing thickness of the coating. CHFs of EPD-0.20 mg, EPD-0.25 mg and EPD-0.30 mg are 93 W/cm
2
, 123 W/cm
2
and 142 W/cm
2
, respectively, which are increased by 7%, 41% and 63% compared with the smooth surface. EPD-0.20 mg performs the best on heat transfer, with a maximum enhancement of around 60%. At the end, a brief review about mechanistic models of heat transfer at low and moderate heat fluxes is provided, based on which, the reasons why heat transfer is enhanced are discussed.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Critical heat flux, Heat transfer, Nanoparticle, Pool boiling
host publication
Heat Transfer and Thermal Engineering
volume
8B-2018
publisher
American Society of Mechanical Engineers(ASME)
conference name
ASME 2018 International Mechanical Engineering Congress and Exposition, IMECE 2018
conference location
Pittsburgh, United States
conference dates
2018-11-09 - 2018-11-15
external identifiers
  • scopus:85063979417
ISBN
9780791852125
language
English
LU publication?
yes
id
550029e5-0684-4cd0-be33-44e266741680
date added to LUP
2019-05-09 15:20:46
date last changed
2019-09-11 04:16:27
@inproceedings{550029e5-0684-4cd0-be33-44e266741680,
  abstract     = {<p><br>
                                                         Saturated pool boiling heat transfer of water is investigated experimentally on copper surfaces with nanoparticle coatings at atmospheric pressure. The coatings are generated by an electrophoretic deposition method (EPD). Three modified surfaces are prepared with gold nanoparticles of 0.20 mg, 0.25 mg and 0.30 mg, respectively. During the deposition, ethanol works as the solvent while the electrical potential and deposition time are controlled as 9.5 V and 30 min, respectively. The experimental results show that heat transfer coefficients (HTC) and critical heat fluxes (CHF) are enhanced on the modified surfaces. HTC increases with decreasing thickness of the coating, while CHF increases with increasing thickness of the coating. CHFs of EPD-0.20 mg, EPD-0.25 mg and EPD-0.30 mg are 93 W/cm                             <br>
                            <sup>2</sup><br>
                                                         , 123 W/cm                             <br>
                            <sup>2</sup><br>
                                                          and 142 W/cm                             <br>
                            <sup>2</sup><br>
                                                         , respectively, which are increased by 7%, 41% and 63% compared with the smooth surface. EPD-0.20 mg performs the best on heat transfer, with a maximum enhancement of around 60%. At the end, a brief review about mechanistic models of heat transfer at low and moderate heat fluxes is provided, based on which, the reasons why heat transfer is enhanced are discussed.                         <br>
                        </p>},
  author       = {Cao, Zhen and Pham, Anh Duc and Wu, Zan and Ruzgas, Tautgirdas and Alber, Cathrine and Sunden, Bengt},
  isbn         = {9780791852125},
  keyword      = {Critical heat flux,Heat transfer,Nanoparticle,Pool boiling},
  language     = {eng},
  location     = {Pittsburgh, United States},
  publisher    = {American Society of Mechanical Engineers(ASME)},
  title        = {Pool boiling heat transfer enhancement of water by gold nanoparticles with an electrophoretic deposition method},
  volume       = {8B-2018},
  year         = {2018},
}