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Investigation of Heat Transfer Characteristics of Al2O3-Water Nanofluids in an Electric Heater

Wang, Jin LU ; Zhai, Zhengjia ; Zheng, Dan ; Yang, Li and Sundén, Bengt LU (2021) In Heat Transfer Engineering 42(19-20). p.1765-1774
Abstract

Commonly, heat transfer performance of a nanofluid is enhanced by increasing the mass fraction of nanoparticles due to an improvement of the thermo-physical properties. However, increasing the number of nanoparticles in the base fluid will result in an increase of the nanofluid viscosity. This research aims to investigate natural convective heat transfer for an electric heater filled with various Al2O3-water nanofluids. The effects of various mass fractions of the nanofluid (0.1–2.0 wt.%) on the heating efficiency of the electric heater were analyzed over time, and results indicate that the electric heater with the 1.0% Al2O3-water nanofluid has the highest heating efficiency of the external... (More)

Commonly, heat transfer performance of a nanofluid is enhanced by increasing the mass fraction of nanoparticles due to an improvement of the thermo-physical properties. However, increasing the number of nanoparticles in the base fluid will result in an increase of the nanofluid viscosity. This research aims to investigate natural convective heat transfer for an electric heater filled with various Al2O3-water nanofluids. The effects of various mass fractions of the nanofluid (0.1–2.0 wt.%) on the heating efficiency of the electric heater were analyzed over time, and results indicate that the electric heater with the 1.0% Al2O3-water nanofluid has the highest heating efficiency of the external environment.

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Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Heat Transfer Engineering
volume
42
issue
19-20
pages
1765 - 1774
publisher
Taylor & Francis
external identifiers
  • scopus:85091076514
ISSN
0145-7632
DOI
10.1080/01457632.2020.1818427
language
English
LU publication?
yes
id
8e6ee765-230e-44a9-906e-32222f3c687a
date added to LUP
2021-01-08 14:14:54
date last changed
2023-11-20 19:24:56
@article{8e6ee765-230e-44a9-906e-32222f3c687a,
  abstract     = {{<p>Commonly, heat transfer performance of a nanofluid is enhanced by increasing the mass fraction of nanoparticles due to an improvement of the thermo-physical properties. However, increasing the number of nanoparticles in the base fluid will result in an increase of the nanofluid viscosity. This research aims to investigate natural convective heat transfer for an electric heater filled with various Al<sub>2</sub>O<sub>3</sub>-water nanofluids. The effects of various mass fractions of the nanofluid (0.1–2.0 wt.%) on the heating efficiency of the electric heater were analyzed over time, and results indicate that the electric heater with the 1.0% Al<sub>2</sub>O<sub>3</sub>-water nanofluid has the highest heating efficiency of the external environment.</p>}},
  author       = {{Wang, Jin and Zhai, Zhengjia and Zheng, Dan and Yang, Li and Sundén, Bengt}},
  issn         = {{0145-7632}},
  language     = {{eng}},
  number       = {{19-20}},
  pages        = {{1765--1774}},
  publisher    = {{Taylor & Francis}},
  series       = {{Heat Transfer Engineering}},
  title        = {{Investigation of Heat Transfer Characteristics of Al<sub>2</sub>O<sub>3</sub>-Water Nanofluids in an Electric Heater}},
  url          = {{http://dx.doi.org/10.1080/01457632.2020.1818427}},
  doi          = {{10.1080/01457632.2020.1818427}},
  volume       = {{42}},
  year         = {{2021}},
}