Enhanced thermal conductivity of copper‐doped polyethylene glycol/urchin‐like porous titanium dioxide phase change materials for thermal energy storage

Jun-ying, Hou; Wang, Yaya; Liu, Jingchun; Zhao, Jianguo; Long, Sifang; Hao, Jianjun

doi:10.1002/er.5045

Cited by 29 publications

(18 citation statements)

References 54 publications

(91 reference statements)

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“…The method of adding fillers is a fast way to improve the thermal conductivity of polymers. Metal materials (such as copper powder [ 7 , 8 , 9 ], silver powder [ 10 , 11 ], metal sheet and wire [ 12 , 13 , 14 ]), carbon materials (such as carbon fiber (CF) [ 15 , 16 , 17 ], graphene material [ 18 , 19 ], graphite material [ 20 , 21 ], carbon nanotubes [ 22 , 23 ], carbon black [ 24 , 25 ]), inorganic fillers (such as aluminum nitride [ 26 , 27 ], boron nitride [ 28 , 29 , 30 ], silicon nitride [ 31 , 32 ], silicon carbide [ 33 ], alumina [ 34 , 35 ]) and other high thermal conductivity fillers are often used to improve the thermal conductivity of polymers. When the particulate filler content is small, it is difficult to significantly improve the thermal conductivity of the matrix.…”

Section: Introductionmentioning

confidence: 99%

3D Thermal Network Supported by CF Felt for Improving the Thermal Performance of CF/C/Epoxy Composites

Jiang

Zheng

et al. 2021

Polymers

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The heat generated by a high-power device will seriously affect the operating efficiency and service life of electronic devices, which greatly limits the development of the microelectronic industry. Carbon fiber (CF) materials with excellent thermal conductivity have been favored by scientific researchers. In this paper, CF/carbon felt (CF/C felt) was fabricated by CF and phenolic resin using the “airflow network method”, “needle-punching method” and “graphitization process method”. Then, the CF/C/Epoxy composites (CF/C/EP) were prepared by the CF/C felt and epoxy resin using the “liquid phase impregnation method” and “compression molding method”. The results show that the CF/C felt has a 3D network structure, which is very conducive to improving the thermal conductivity of the CF/C/EP composite. The thermal conductivity of the CF/C/EP composite reaches 3.39 W/mK with 31.2 wt% CF/C, which is about 17 times of that of pure epoxy.

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Section: Introductionmentioning

confidence: 99%

3D Thermal Network Supported by CF Felt for Improving the Thermal Performance of CF/C/Epoxy Composites

Jiang

Zheng

et al. 2021

Polymers

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“…Hou et al developed a new composite PCM, the material is Cu/PEG/TiO2 composite material, the latent heat value is 133.8 kJ/kg, and the thermal conductivity is 0.58 W/(m·K). This conforms to the PCM with good thermal stability and reliability 97 . Methods for enhancing the charge‐release rate of the PCM also include methods such as adding metal foam and nanoparticles to the PCM 98 …”

Section: Pcms Used In Stcsmentioning

confidence: 66%

“…This conforms to the PCM with good thermal stability and reliability. 97 Methods for enhancing the charge-release rate of the PCM also include methods such as adding metal foam and nanoparticles to the PCM. 98 Zhang et al 99 added EG to paraffin to prepare composite PCM with higher thermal conductivity.…”

Section: Pcms Used In Stcsmentioning

confidence: 99%

Review on solar collector systems integrated with phase‐change material thermal storage technology and their residential applications

Liu

Zhang

2021

Int J Energy Res

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This article reviews the design of solar phase-change energy storage systems and their applications in residential buildings. The solar thermal collection system has high heat collection efficiency, no pollution, and it is also widely used in the field of building heating. In order to improve the efficiency of the solar collector system, the researchers found that integrating phase-change materials (PCMs) into the solar thermal collector system can achieve this goal, but there will be a problem of PCM leakage. Some researchers have solved this problem by microencapsulating PCMs, the thermal conductivity and energy storage efficiency of the PCMs after microencapsulation will be greatly affected. Adjusting the solar collector to an appropriate inclination angle can achieve the highest heat collection efficiency. Choosing the PCM in the appropriate temperature zone can improve the system efficiency. For the separated solar collector system, the parts that need to be considered include the type of heat exchanger, the structure of the energy storage heat exchanger, the shape of the heat exchanger fins, the type of solar collector, and so on. All in all, coupling PCM into the solar collector system can improve energy efficiency reduce carbon emissions and have good economics, the maximum internal rate of return of solar collectors integrated with PCMs in residential and industrial applications is 22% and 17.2%.

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“…Moreover, Silica (SiO 2 ) and titania (TiO 2 ) were also used as inorganic supporting material for synthesized of shape‐stabilized PCMs. Hou et al used urchin‐like porous TiO 2 as a carrier for preparation of polyethylene glycol (PEG)/TiO 2 composite PCMs via impregnation method and they dispersed copper particles on the composite for enhancing thermal conductivity 38 . In another work, mesoporous silica functionalized by dopamine was used as a supporter for obtaining PEG‐based shape stabilized PCM and thermal properties of composites were investigated 39 .…”

Section: Introductionmentioning

confidence: 99%

PolyHIPE composite based‐form stable phase change material for thermal energy storage

Mert

2020

Int J Energy Res

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Summary A novel shape‐stabilized n‐hexadecane/polyHIPE composite phase change material (PCM) was designed and thermal energy storage properties were determined. Porous carbon‐based frameworks were produced by polymerization of styrene‐based high internal phase emulsions (HIPEs) in existence of the surface modified montmorillonite nanoclay. The morphological and mechanical properties of the obtained polyHIPEs were investigated by scanning electron microscopy analysis and the compression test, respectively. The polyHIPE composite with the best pore morphology and the highest compression modulus was determined as a framework to prepare the form stable n‐hexadecane/polyHIPE composite phase change material using the one‐step impregnation method. The chemical structure and morphologic property of composite PCM was investigated by FT‐IR and polarized optical microscopy analysis. Thermal stability of the form‐stable PCM (FSPCM) was examined by TG analysis. The n‐hexadecane fraction engaged into the carbon foam skeleton was found of as 55 wt% from TG curve. differential scanning calorimetry analysis was used for determining melting temperature and latent heat storage capacity of FSPCM and these values were determined as (26.36°C) and (143.41 J/g), respectively. The results indicated that the obtained composite material (FSPCM) has a considerable potential for low temperature (18°C‐30°C) thermal energy storage applications with its thermal energy storage capacity, appropriate phase change temperatures and high thermal stability.

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Enhanced thermal conductivity of copper‐doped polyethylene glycol/urchin‐like porous titanium dioxide phase change materials for thermal energy storage

Cited by 29 publications

References 54 publications

3D Thermal Network Supported by CF Felt for Improving the Thermal Performance of CF/C/Epoxy Composites

3D Thermal Network Supported by CF Felt for Improving the Thermal Performance of CF/C/Epoxy Composites

Review on solar collector systems integrated with phase‐change material thermal storage technology and their residential applications

PolyHIPE composite based‐form stable phase change material for thermal energy storage

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