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Pool boiling heat transfer of n-pentane and acetone on nanostructured surfaces by electrophoretic deposition

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

This work aims to investigate pool boiling heat transfer enhancement by using nanostructured surfaces. Two types of nanostructured surfaces were employed, gold nanoparticle-coated surfaces and alumina nanoparticle-coated surfaces. The nanostructured surfaces were fabricated by an electrophoretic deposition technique, depositing nanoparticles in a nanofluid onto smooth copper surfaces under an electric field. N-pentane and acetone were tested as working fluids. Compared to the smooth surface, the pool boiling heat transfer coefficient has been increased by 80% for n-pentane and acetone. Possible mechanisms for the enhancement in heat transfer are qualitatively provided. The increase in active nucleation site density due to multiple... (More)

This work aims to investigate pool boiling heat transfer enhancement by using nanostructured surfaces. Two types of nanostructured surfaces were employed, gold nanoparticle-coated surfaces and alumina nanoparticle-coated surfaces. The nanostructured surfaces were fabricated by an electrophoretic deposition technique, depositing nanoparticles in a nanofluid onto smooth copper surfaces under an electric field. N-pentane and acetone were tested as working fluids. Compared to the smooth surface, the pool boiling heat transfer coefficient has been increased by 80% for n-pentane and acetone. Possible mechanisms for the enhancement in heat transfer are qualitatively provided. The increase in active nucleation site density due to multiple micro/nanopores on nanoparticle-coated surfaces is likely the main contributor. The critical heat flux on nanostructured surfaces are approximately the same as that on the smooth surface because both smooth and modified surfaces show similar wickability for the two working fluids.

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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
Boiling, Electrophoretic deposition, Heat transfer coefficient, Nanostructured surface, Well-wetting liquid
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:85063985247
ISBN
9780791852125
language
English
LU publication?
yes
id
c9cb9d1d-522c-43f6-a757-34a50954cd11
date added to LUP
2019-05-09 15:14:17
date last changed
2019-05-14 04:59:49
@inproceedings{c9cb9d1d-522c-43f6-a757-34a50954cd11,
  abstract     = {<p>This work aims to investigate pool boiling heat transfer enhancement by using nanostructured surfaces. Two types of nanostructured surfaces were employed, gold nanoparticle-coated surfaces and alumina nanoparticle-coated surfaces. The nanostructured surfaces were fabricated by an electrophoretic deposition technique, depositing nanoparticles in a nanofluid onto smooth copper surfaces under an electric field. N-pentane and acetone were tested as working fluids. Compared to the smooth surface, the pool boiling heat transfer coefficient has been increased by 80% for n-pentane and acetone. Possible mechanisms for the enhancement in heat transfer are qualitatively provided. The increase in active nucleation site density due to multiple micro/nanopores on nanoparticle-coated surfaces is likely the main contributor. The critical heat flux on nanostructured surfaces are approximately the same as that on the smooth surface because both smooth and modified surfaces show similar wickability for the two working fluids.</p>},
  author       = {Wu, Zan and Alber, Cathrine and Pham, Anh Duc and Falkman, Peter and Sunden, Bengt and Cao, Zhen and Ruzgas, Tautgirdas},
  isbn         = {9780791852125},
  keyword      = {Boiling,Electrophoretic deposition,Heat transfer coefficient,Nanostructured surface,Well-wetting liquid},
  language     = {eng},
  location     = {Pittsburgh, United States},
  publisher    = {American Society of Mechanical Engineers(ASME)},
  title        = {Pool boiling heat transfer of n-pentane and acetone on nanostructured surfaces by electrophoretic deposition},
  volume       = {8B-2018},
  year         = {2018},
}