Application of phase change materials in improving the performance of refrigeration systems

Nguyen, Van Nhanh; Le, Thanh Lanh; Duong, Xuan Quang; Le, Van Vang; Nguyen, Dinh Tuyen; Nguyen, Phuoc Quy Phong; Rajamohan, Sakthivel; Vo, Anh Vu; Le, Huu Son

doi:10.1016/j.seta.2023.103097

Cited by 6 publications

(4 citation statements)

References 204 publications

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“…In general, PCMs have high energy storage density, meaning they can store more energy per unit mass than conventional materials such as water or concrete. This makes them useful for a range of applications, including building insulation [24], refrigeration [30] and renewable energy systems [31]. It is commonly agreed that the ability of PCMs to store and release thermal energy can help improve energy efficiency, reduce the use of fossil fuels and contribute to a more sustainable future [32].…”

Section: Phase Change Materialsmentioning

confidence: 99%

Perspective on the Development of Energy Storage Technology Using Phase Change Materials in the Construction Industry: A Review

et al. 2023

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The construction industry is responsible for high energetic consumption, especially associated with buildings’ heating and cooling needs. This issue has attracted the attention of the scientific community, governments and authorities from all over the world, especially in the European Union, motivated by recent international conflicts which forced the countries to rethink their energy policies. Over the years, energy consumption has been based on non-renewable energy sources such as natural gas, oil and coal. Nowadays, it is urgent to implement solutions that aim to minimize these high energetic consumptions and act based on clean and renewable energy sources. In recent years, phase change materials (PCM) have become an area of high interest and development, since they allow to minimize the energy consumption in buildings, based in solar energy, due to their thermal storage capacity. The main objective of this work consists of a perspective of the evolution of the development and application of thermal storage technology through the incorporation of PCM in the construction sector, focusing on the last 10 years of research, showing the most recent developments of its application in construction materials, such as mortars, concrete, incorporation in porous aggregates, naturally based materials, carbon-based materials, boards, blocks and solar thermal systems.

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Section: Phase Change Materialsmentioning

confidence: 99%

Perspective on the Development of Energy Storage Technology Using Phase Change Materials in the Construction Industry: A Review

et al. 2023

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“…This capability is especially useful in applications such as solar thermal systems [4], where PCMs can store excess solar energy during the day and discharge it during the night when temperatures drop. PCMs also improve energy efficiency by reducing temperature fluctuations [5] and preventing overheating [6] or refrigeration [7], thereby extending equipment life [8] and reducing energy consumption [9]. PCMs are crucial to the development of sustainable heat storage solutions for a greener future due to their adaptability to various environments, simplicity of integration, and potential for use with renewable energy sources [10].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Heat Storage Cooling Systems via the Implementation of Honeycomb-Inspired Design: Investigating Efficiency and Performance

Rahmani,

Dibaj,

Akrami

2024

Energies

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This study presents a novel approach inspired by the hexagonal honeycomb structure found in nature, leveraging image processing algorithms to precisely define complex geometries in thermal systems. Hexagonal phase change material containers and thermally conductive fins were meticulously delineated, mirroring the intricate real-world designs of honeycombs. This innovative methodology not only streamlines setup processes but also enhances our understanding of melting dynamics within enclosures, highlighting the potential benefits of biomimetic design principles in engineering applications. Two distinct honeycomb structures were employed to investigate their impact on the melting process within cavities subject to heating from the left wall, with the remaining walls treated as adiabatic surfaces. The incorporation of a thermally conductive fin system within the enclosure significantly reduced the time required for a complete phase change, emphasizing the profound influence of fin systems on thermal design and performance. This enhancement in heat transfer dynamics makes fin systems advantageous for applications prioritizing precise temperature control and expedited phase change processes. Furthermore, the critical role of the fin system design was emphasized, influencing both the onset and location of the final point of melting. This underscores the importance of tailoring fin systems to specific applications to optimize their performance. Our study highlights the significant impact of the Rayleigh (Ra) number on the melting time in a cavity without fins, revealing a decrease from 6 to 0.4 as the Ra increased from 102 to 105; the introduction of a fin system uniformly reduced the melting time to Ste.Fo = 0.5, indicating fins’ universal effectiveness in optimizing thermal dynamics and expediting the melting process. Moreover, the cavity angle was found to significantly affect the fluid fraction diagram in unfanned cavities but had minimal impact when fins were present, highlighting the stabilizing role of fins in mitigating gravitational effects during melting processes. These insights expand our understanding of cavity geometry and fin interactions in heat transfer, offering potential for enhanced thermal system designs in various engineering applications. Decreasing thermal conductivity (λ) by increasing the fin thickness can halve the melting time, but the accompanying disadvantages include a heavier system and reduced energy storage due to less phase change material, necessitating a careful balance in decision-making.

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“…Tüm parametreler göz önünde bulundurularak, belirli koşullarda çalışan soğutma sistemlerinin enerji tüketimini minimize edilebildiği uygun FDM'lerin önerilmesi, enerji kaynaklarının korunması ve enerji maliyetlerinin düşürülmesi açısından önemlidir. FDM'lerin soğutma sistemlerinde kullanımlarının sağladığı avantajların sunulduğu kapsamlı çalışmalar literatürde mevcuttur [13,14]. Rocha vd.…”

Section: Giriş (Introduction)unclassified

Boraks dekahidrat çözeltilerinin faz değiştiren malzeme olarak ön soğutma işlemi yapılan soğuk depolama sisteminde kullanımı

Kıran Yıldırım,

Mancuhan,

Sargut

2024

Journal of Boron

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Ön soğutma işlemi taze sebze ve meyvelerin hasattan kısa süre sonra meydana gelen bozulmalarının önüne geçmek amacıyla yürütülen soğuk depolamanın önemli basamaklarından biridir. Bu çalışmada, laboratuvar ölçekli bir soğutma sistemi ön soğutma işlem koşullarında faz değiştiren malzemesiz (FDM’siz) ve FDM’lerle test edilmiştir. FDM olarak sisteme su ve farklı konsantrasyonlarda hazırlanan boraks dekahidrat (Na2B4O7.10H2O) çözeltileri entegre edilmiştir. Kompresör çalışma süresinin (%) tüm FDM’lerle azaldığı tespit edilmiştir. FDM’siz durumda %21,05 olarak belirlenen bu değerin ağ. %1,0 Na2B4O7.10H2O çözeltisi ile %12,12 değerine kadar düştüğü belirlenmiştir. Dolayısıyla, toplam enerji tüketiminde maksimum azalma, ağ. %1,0 Na2B4O7.10H2O çözeltisi ile %41,7 oranında hesaplanmıştır. Elektrik kesintisi esnasında ise, kabin iç hava sıcaklığının ortam sıcaklığına ulaşma süresi FDM’siz duruma göre ağ. %1,0 Na2B4O7.10H2O çözeltisi ile yaklaşık 4,3 kat uzadığı belirlenmiştir. Sonuç olarak, ön soğutma işleminde kullanılan soğutma sistemlerinde kullanmak üzere ağ. %1,0 Na2B4O7.10H2O çözeltisi alternatif FDM olarak önerilmektedir.

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Application of phase change materials in improving the performance of refrigeration systems

Cited by 6 publications

References 204 publications

Perspective on the Development of Energy Storage Technology Using Phase Change Materials in the Construction Industry: A Review

Perspective on the Development of Energy Storage Technology Using Phase Change Materials in the Construction Industry: A Review

Enhancing Heat Storage Cooling Systems via the Implementation of Honeycomb-Inspired Design: Investigating Efficiency and Performance

Boraks dekahidrat çözeltilerinin faz değiştiren malzeme olarak ön soğutma işlemi yapılan soğuk depolama sisteminde kullanımı

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