Thermal performance of copper foam/paraffin composite phase change material

Zheng, Huanpei; Wang, Changhong; Liu, Qingming; Tian, Zhongxuan; Fan, Xianbo

doi:10.1016/j.enconman.2017.12.023

Cited by 291 publications

(57 citation statements)

References 27 publications

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“…13 However, similar to other organic PCMs, fatty acids possess relatively low thermal conductivity that seriously limit their utilization in LHTES. To enhance the heat conduction of PCMs, the addition of materials with high thermal conductivity such as metal particles, [14][15][16] fins, [17][18][19] foam metal, [20][21][22] and carbon materials 12,[23][24][25][26][27][28][29] is typically performed. Among the additives, carbon materials possess much lower densities, which can reduce the energy storage density losses during LHTES.…”

Section: Introductionmentioning

confidence: 99%

Thermal performance of stearic acid/carbon nanotube composite phase change materials for energy storage prepared by ball milling

Zhang

Yuan

et al. 2018

Int J Energy Res

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Summary In this work, stearic acid/carbon nanotubes composite phase change materials (SA/CNTs composite PCMs) were fabricated by ball milling for the first time to enhance the heat conduction of SA and prevent the delamination of SA and CNTs components. The results of suspension stability study conducted using a gravity sedimentation method showed that polyvinylpyrrolidone (PVP) used as dispersant has the best effect on the stability of composite PCMs. Then, the thermal cycling test further proved the stability of prepared composite. The SEM and FT‐IR results revealed that ball milling led to the formation of highly homogeneous composites. The thermal properties of the fabricated SA/CNTs composites with CNTs contents of 2, 6, and 10 wt.% characterized by differential scanning calorimetry (DSC) demonstrated that their phase change temperatures varied slightly while the latent heat decreased with the increased CNTs content. Furthermore, the thermal conductivity of the SA/CNTs composites were greater than that of pure SA by 61.5%, 92.3%, and 119.2%, respectively. The addition of CNTs also increased the thermal release rates of the prepared PCMs and decreased their storage rates. Therefore, the produced materials can be potentially used in thermal management.

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Section: Introductionmentioning

confidence: 99%

Thermal performance of stearic acid/carbon nanotube composite phase change materials for energy storage prepared by ball milling

Zhang

Yuan

et al. 2018

Int J Energy Res

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“…With regard to the phase interface, the conventional camera was widely utilized to capture the solid/liquid interface. Some researchers also employed a high definition (HD) camera to obtain higher quality images [36,41,48,55]. After images of phase interface being processed, some other parameters, such as melting/solidification fraction and rate, can be obtained.…”

Section: Experimental Apparatusmentioning

confidence: 99%

A review of phase change heat transfer in shape-stabilized phase change materials (ss-PCMs) based on porous supports for thermal energy storage

Zhang

Feng

Shi

et al. 2021

Renewable and Sustainable Energy Reviews

362

107

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Latent heat thermal energy storage (LHTES) uses phase change materials (PCMs) to store and release heat, and can effectively address the mismatch between energy supply and demand. However, it suffers from low thermal conductivity and the leakage problem. One of the solutions is integrating porous supports and PCMs to fabricate shape-stabilized phase change materials (ss-PCMs). The phase change heat transfer in porous ss-PCMs is of fundamental importance for determining thermalfluidic behaviours and evaluating LHTES system performance. This paper reviews the Highlights: 1. The recent advances in experimental and numerical investigations on phase change heat transfer in porous ss-PCMs are reviewed. 2. Paraffin and metal foams are the mostly used PCM and porous support respectively in the experimental studies. 3. Compared to REV-scale simulation, the pore-scale simulation can provide extra flow and heat transfer characteristics in pores. 4. There exists a research gap between phase change heat transfer and material preparation.

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“…It was found that the addition of metal foam had improved the heat transfer and reduced the time consumption to start phase change. Zheng et al [20] conducted an experimental and numerical study on a PCM embedded in a copper foam inside a rectangular enclosure under constant heat flux condition. They noticed that the melting time of composite PCM/copper foam was 20% shorter than the pure PCM and the temperature distribution became more uniform in PCM/copper foam composites.…”

Section: Introductionmentioning

confidence: 99%

The effect of water’s presence around the Phase Change Material

et al. 2020

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As part of the research in the field of thermal control of electronic components, a Phase Change Material (PCM) is confined in a liquid and is heated vertically on one side by a hot plate. The presence of the liquid around the Phase Change Material prevents the formation of air bubbles produced in case of direct contact between the hotplate and the Phase Change Material (extends the lifetime of the Phase Change Material by reducing overheating zones). It improves heat transfer by increasing the thermal conductivity around the Phase Change Material (raising the thermal exchange surface) and by accelerating the convective transfer. This work examines experimentally and numerically the effect of the water on the Phase Change Material and on the heating plate. The water is used around the Phase Change Material and a comparative study of the comportment of some important parameters like the melt front form, melting time, flow direction, temperature and operating time is realized. It is found that the presences of the liquid around the Phase Change Material seems to be more interesting for a thermal protection role than the standard case of the Phase Change Material directly heated by the hotplate.

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Thermal performance of copper foam/paraffin composite phase change material

Cited by 291 publications

References 27 publications

Thermal performance of stearic acid/carbon nanotube composite phase change materials for energy storage prepared by ball milling

Thermal performance of stearic acid/carbon nanotube composite phase change materials for energy storage prepared by ball milling

A review of phase change heat transfer in shape-stabilized phase change materials (ss-PCMs) based on porous supports for thermal energy storage

The effect of water’s presence around the Phase Change Material

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