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Experimental investigation of heat transfer performance of a heat pipe combined with thermal energy storage materials of CuO-paraffin nanocomposites

Wang, Jin LU ; Li, Yanxin ; Wang, Yao ; Yang, Li ; Kong, Xiangfei and Sundén, Bengt LU (2020) In Solar Energy 211. p.928-937
Abstract

As the phase change material (PCM), pure paraffin wax is mixed with CuO (high heat conduction) and Span-80 (as a dispersant) in this research. The CuO/paraffin nanocomposite PCMs is synthesized with mass fractions of 0.3%, 0.6%, 0.9% and 1.2% by a two-step method. Dispersion stability and nanoparticle morphology of CuO/paraffin nanocomposite PCMs are analyzed by using a spectrophotometer and a scanning electron microscopy. Thermal conductivity and phase change latent heat of CuO/paraffin nanocomposite PCMs are investigated by changing the nanoparticle mass fraction. In addition, this paper investigates heat transfer characteristics of the heat pipe-PCMs module and effects of fan power and heating power on the performance of the cooling... (More)

As the phase change material (PCM), pure paraffin wax is mixed with CuO (high heat conduction) and Span-80 (as a dispersant) in this research. The CuO/paraffin nanocomposite PCMs is synthesized with mass fractions of 0.3%, 0.6%, 0.9% and 1.2% by a two-step method. Dispersion stability and nanoparticle morphology of CuO/paraffin nanocomposite PCMs are analyzed by using a spectrophotometer and a scanning electron microscopy. Thermal conductivity and phase change latent heat of CuO/paraffin nanocomposite PCMs are investigated by changing the nanoparticle mass fraction. In addition, this paper investigates heat transfer characteristics of the heat pipe-PCMs module and effects of fan power and heating power on the performance of the cooling module. Results show that the thermal conductivity of the PCMs increases by 24.4% when 1.2% CuO nanoparticles are added into the paraffin, whereas the latent heat of phase change decreases by 1.5%. Compared to without PCMs, the heat pipe with 1.2% CuO/paraffin composite at 10 V fan voltage shows 17.2% reduction of the evaporator temperature. In addition, it is found that both a high fan voltage and a high mass fraction of CuO nanoparticles can significantly improve the heat transfer characteristics of the evaporation.

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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Electronic cooling, Heat dissipation, Heat pipe, Nanocomposite, Phase change material
in
Solar Energy
volume
211
pages
10 pages
publisher
Elsevier
external identifiers
  • scopus:85092676843
ISSN
0038-092X
DOI
10.1016/j.solener.2020.10.033
language
English
LU publication?
yes
id
30a4894b-7d9c-4bac-b725-a403e944df56
date added to LUP
2020-11-05 12:32:08
date last changed
2023-11-20 13:41:47
@article{30a4894b-7d9c-4bac-b725-a403e944df56,
  abstract     = {{<p>As the phase change material (PCM), pure paraffin wax is mixed with CuO (high heat conduction) and Span-80 (as a dispersant) in this research. The CuO/paraffin nanocomposite PCMs is synthesized with mass fractions of 0.3%, 0.6%, 0.9% and 1.2% by a two-step method. Dispersion stability and nanoparticle morphology of CuO/paraffin nanocomposite PCMs are analyzed by using a spectrophotometer and a scanning electron microscopy. Thermal conductivity and phase change latent heat of CuO/paraffin nanocomposite PCMs are investigated by changing the nanoparticle mass fraction. In addition, this paper investigates heat transfer characteristics of the heat pipe-PCMs module and effects of fan power and heating power on the performance of the cooling module. Results show that the thermal conductivity of the PCMs increases by 24.4% when 1.2% CuO nanoparticles are added into the paraffin, whereas the latent heat of phase change decreases by 1.5%. Compared to without PCMs, the heat pipe with 1.2% CuO/paraffin composite at 10 V fan voltage shows 17.2% reduction of the evaporator temperature. In addition, it is found that both a high fan voltage and a high mass fraction of CuO nanoparticles can significantly improve the heat transfer characteristics of the evaporation.</p>}},
  author       = {{Wang, Jin and Li, Yanxin and Wang, Yao and Yang, Li and Kong, Xiangfei and Sundén, Bengt}},
  issn         = {{0038-092X}},
  keywords     = {{Electronic cooling; Heat dissipation; Heat pipe; Nanocomposite; Phase change material}},
  language     = {{eng}},
  pages        = {{928--937}},
  publisher    = {{Elsevier}},
  series       = {{Solar Energy}},
  title        = {{Experimental investigation of heat transfer performance of a heat pipe combined with thermal energy storage materials of CuO-paraffin nanocomposites}},
  url          = {{http://dx.doi.org/10.1016/j.solener.2020.10.033}},
  doi          = {{10.1016/j.solener.2020.10.033}},
  volume       = {{211}},
  year         = {{2020}},
}