Heat transfer enhancement of latent heat thermal energy storage in solar heating system: A state-of-the-art review

Liu, Weiyi; Bie, Yu; Xu, Tao; Cichoń, A.; Królczyk, Grzegorz; Li, Zhixiong

doi:10.1016/j.est.2021.103727

Cited by 70 publications

(27 citation statements)

References 160 publications

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“…Figure 8 shows the leakage of the composites after 1400 min. We found that the leakage rate of all composites was less than 0.14% after a long time, and the leakage rate of the PP-treated carbon carrier composite phase change material was only 0.85%, which further demonstrates the excellent encapsulation ability and thermal stability of the carbon support for PEG [ 43 ].

where m 0 and m 1 are the mass of the sample before heating and after heating for a certain time, respectively.…”

Section: Resultsmentioning

confidence: 99%

Waste Plastic Polypropylene Activated Jujube Charcoal for Preparing High-Performance Phase Change Energy Storage Materials

Cao

Zhang

et al. 2023

Nanomaterials

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The research on the high-value utilization of biomass has good application prospects and is conducive to sustainable development. In this paper, three different types of activators (potassium hydroxide, phosphoric acid, and polypropylene) were used to carbonize jujube branches at high temperatures of 600 °C and 800 °C, and then the PEG/jujube charcoal composite phase change materials (PCM) were prepared by vacuum impregnation of polyethylene glycol (PEG). The results showed that the carbon support activated by polypropylene (PP) had a richer pore size distribution than the other two activation methods, and the 800 °C carbonization carrier loaded PEG had a higher phase change enthalpy than the composite material at 600 °C. The mesoporous and macroporous structures were staggered with PP-activated jujube charcoal at 800 °C, with a specific surface area of 1,082.2 m²/g, the melting enthalpy of the composite material reached 114.92 J/g, and the enthalpy of solidification reached 106.15 J/g after PEG loading. The diffraction peak of the composite phase change material was the superposition of PEG and carbon matrix, which proved that the loading process was physical adsorption. After 200 thermal cycles, the melting enthalpy and crystallization enthalpy were only reduced by 4.3% and 4.1%, respectively, and they remained stable and leak-free at the melting point of PEG for 2 h, demonstrating good thermal stability of the composite phase change materials. In summary, PP has obvious advantages over traditional activation, and the carbon-supported PEG phase change composite after PP activation is a biochar energy storage material with excellent performance.

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where m 0 and m 1 are the mass of the sample before heating and after heating for a certain time, respectively.…”

Section: Resultsmentioning

confidence: 99%

Waste Plastic Polypropylene Activated Jujube Charcoal for Preparing High-Performance Phase Change Energy Storage Materials

Cao

Zhang

et al. 2023

Nanomaterials

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“…As PCMs also keeps temperature unchanged during heat absorb and release, it is ideal to be used in heating and cooling systems which will benefit from high energy storage capacity and low energy consumptions of PCMs. Scientists carried out simulations based on solar energy storage systems using PCMs, [179] and also experimentally explore using various additives or functional methods to improve the photo‐thermal performance of PCMs while ensuring that the fabricated PCMs maintain their thermal properties even after repeated heating and cooling cycles [180,181] …”

Section: Solar Thermal Utilizationmentioning

confidence: 99%

Recent Progress in Polyethylene‐enhanced Organic Phase Change Composite Materials for Energy Management

Wu,

Yeo,

Wang

et al. 2023

Chemistry An Asian Journal

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Phase Change Materials (PCMs) are utilized to regulate temperature and store thermal energy in various industries such as infrastructure, electronics, solar power, and more. However, they face several limitations, such as leakage, poor thermal properties, incompatibility, as well as high flammability. Polyethylene (PE) is one of many polymers explored to enhance the desirable properties of PCMs, due to their versatile properties such as high strength, durability, chemical resistance, and low cost. The combination of PCMs and PE can be used to create composite materials, through micro/nano-encapsulation, melt-blending, formation of composites and with proper additives. They create enhanced thermal energy storage properties and in the meantime, benefited from the mechanical properties of the PE. This review provides a concise summary of the recent developments regarding PE-enhanced PCMs and provides insights into possible topics for further investigation. We summarised enhancement methods based on commonly adopted types of PEs, such as encapsulation, melt-blending, hot pressing, extrusion, and 3D printing. We then elaborate on how these PE-PCM composites are effectively utilised for heat management applications and the potential future directions in energy-saving buildings, electronic devices, and energy storage systems.

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“…Among the candidate solutions, the latent heat storage (LHS) by phase change materials (PCMs) possesses high energy storage density and high latent heat, which can be maintained at almost constant temperature. Consequently, the use of PCMs has become the most popular TES technique to be investigated [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Spent Yeast-Derived 3D Porous Carbon Skeleton as Low-Cost D-Mannitol Supporting Material for Medium Temperature Thermal Energy Storage

Zhu

et al. 2023

Materials

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Shape-stable phase change materials (ss-PCMs) are extensively applied in renewable energy storage. The core for realizing high latent heat and good thermal stability of ss-PCMs is the designation of suitable supporting skeletons that can effectively preserve the PCMs from leaking out. In this study, ss-PCMs impregnated by D-mannitol were prepared using a waste yeast-derived carbon (YC) as the support material. YC possesses a large surface area (669.90 m2/g), which can provide sufficient phase transition space and nucleation sites for D-mannitol. The results indicated that a reduced supercooling of 44.76 °C for YC/D-mannitol ss-PCMs can be realized. The ss-PCMs also exhibited good cycling stability, with latent heat loss rates of 4.00% and 2.15% after 200 thermal cycles. We further demonstrate that YC provides restricted space for mannitol to inhibit the supercooling mechanism. The YC/D-mannitol ss-PCMs exhibited great promise for solar heat storage and industrial waste heat recovery in the medium temperature domain.

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Heat transfer enhancement of latent heat thermal energy storage in solar heating system: A state-of-the-art review

Cited by 70 publications

References 160 publications

Waste Plastic Polypropylene Activated Jujube Charcoal for Preparing High-Performance Phase Change Energy Storage Materials

Waste Plastic Polypropylene Activated Jujube Charcoal for Preparing High-Performance Phase Change Energy Storage Materials

Recent Progress in Polyethylene‐enhanced Organic Phase Change Composite Materials for Energy Management

Spent Yeast-Derived 3D Porous Carbon Skeleton as Low-Cost D-Mannitol Supporting Material for Medium Temperature Thermal Energy Storage

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