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Enhanced thermal management by introducing nanoparticle composite phase change materials for cooling multiple heat sources systems

Wang, Jin LU ; Yu, Kai ; Duan, Runze ; Xie, Gongnan LU and Sundén, Bengt LU (2021) In Energy 227.
Abstract

In this paper, paraffin mixed with nanoparticles Al2O3, CuO, and multi-walled carbon nanotubes (MWCNTs) were prepared for cooling multiple heat sources. For thermal management of heat sources, performances of the composite phase change materials (PCMs) were investigated at different heating power. Enhanced performance in terms of heat sources temperature, temperature difference between two heat sources, and thermal resistance was experimentally tested and analyzed at various mass fractions of nanoparticle and various power levels. It is found that by using 1.0 wt% Al2O3 composite PCMs the minimal thermal resistance is achieved at the range from 0.63 °C/W to 0.71 °C/W for all power levels, and... (More)

In this paper, paraffin mixed with nanoparticles Al2O3, CuO, and multi-walled carbon nanotubes (MWCNTs) were prepared for cooling multiple heat sources. For thermal management of heat sources, performances of the composite phase change materials (PCMs) were investigated at different heating power. Enhanced performance in terms of heat sources temperature, temperature difference between two heat sources, and thermal resistance was experimentally tested and analyzed at various mass fractions of nanoparticle and various power levels. It is found that by using 1.0 wt% Al2O3 composite PCMs the minimal thermal resistance is achieved at the range from 0.63 °C/W to 0.71 °C/W for all power levels, and the heat storage and heat conduction of the presented composite PCMs are enhanced as well as the melting ratio. At 8 W power level, the temperature of the heat source 1 for 1.0 wt% Al2O3 composite PCMs decreases by 17.4% compared to that for pure paraffin.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Mass fraction, Melting ratio, Nanoparticle, Power level, Thermal resistance
in
Energy
volume
227
article number
120495
publisher
Elsevier
external identifiers
  • scopus:85103534468
ISSN
1873-6785
DOI
10.1016/j.energy.2021.120495
language
English
LU publication?
yes
id
d666589a-7a1d-4f5f-b048-65eb46009139
date added to LUP
2021-04-12 08:48:46
date last changed
2023-11-08 12:40:05
@article{d666589a-7a1d-4f5f-b048-65eb46009139,
  abstract     = {{<p>In this paper, paraffin mixed with nanoparticles Al<sub>2</sub>O<sub>3</sub>, CuO, and multi-walled carbon nanotubes (MWCNTs) were prepared for cooling multiple heat sources. For thermal management of heat sources, performances of the composite phase change materials (PCMs) were investigated at different heating power. Enhanced performance in terms of heat sources temperature, temperature difference between two heat sources, and thermal resistance was experimentally tested and analyzed at various mass fractions of nanoparticle and various power levels. It is found that by using 1.0 wt% Al<sub>2</sub>O<sub>3</sub> composite PCMs the minimal thermal resistance is achieved at the range from 0.63 °C/W to 0.71 °C/W for all power levels, and the heat storage and heat conduction of the presented composite PCMs are enhanced as well as the melting ratio. At 8 W power level, the temperature of the heat source 1 for 1.0 wt% Al<sub>2</sub>O<sub>3</sub> composite PCMs decreases by 17.4% compared to that for pure paraffin.</p>}},
  author       = {{Wang, Jin and Yu, Kai and Duan, Runze and Xie, Gongnan and Sundén, Bengt}},
  issn         = {{1873-6785}},
  keywords     = {{Mass fraction; Melting ratio; Nanoparticle; Power level; Thermal resistance}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Energy}},
  title        = {{Enhanced thermal management by introducing nanoparticle composite phase change materials for cooling multiple heat sources systems}},
  url          = {{http://dx.doi.org/10.1016/j.energy.2021.120495}},
  doi          = {{10.1016/j.energy.2021.120495}},
  volume       = {{227}},
  year         = {{2021}},
}