Performance enhancement of latent heat storage systems by using extended surfaces and porous materials: A state-of-the-art review

Teggar, Mohamed; Ajarostaghi, Seyed Soheil Mousavi; Yıldız, Çağatay; Arıcı, Müslüm; Ismail, Kamal Abdel Radi; Niyas, Hakeem; Lino, Fátima A. M.; Mert, Mehmet Selçuk; Khalid, Mohammad

doi:10.1016/j.est.2021.103340

Cited by 59 publications

(11 citation statements)

References 149 publications

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“…The porous materials exhibit internal structures that can infiltrate plenty of solid–liquid working materials into the internal space [ 1 , 2 ]. That is to say, the supporting materials with high porosity can serve as a container with a small weight fraction [ 3 , 4 ]. To develop a porous supporting material for practical applications, synthesizing a foam structure is needed to match working materials [ 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Phase Change Materials Fabricated with Cross-Linked Graphene Aerogels

Song

2022

Gels

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3D porous graphene aerogel exhibits a high surface area which can hold plenty of pure phase change material (PCM) into the internal space. In order to maintain the flexibility of PCM without volume shrinkage under the external force, cross-linked graphene aerogel was prepared by the cysteamine vapor method. The cross-linked graphene aerogel had a high stress–strain durability and chemical stability for infiltrating PCM to produce a form-stable PCM composite. The latent heat of PCM is one of the elements to estimate the capacity of PCM thermal energy storage (TES) during the phase transition process. The cross-linked graphene aerogel-supported PCM composite showed a great TES to be utilized in thermal-to-electrical energy harvesting. The cross-linked graphene aerogel also had an excellent mechanical property of preventing damage at a high temperature.

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Section: Introductionmentioning

confidence: 99%

Characterization of Phase Change Materials Fabricated with Cross-Linked Graphene Aerogels

Song

2022

Gels

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“…In the case of PCMs, low conductivity of material can lead to non‐uniform charging and discharging, resulting in incomplete phase changes and diminished performance 7,8 . Numerous methods, such as dispersion of micro or nano particles into PCMs, 9 adding fins, 10 and placement of heat pipes, 11 drops in pressure, particle settlement, and increase in size are major concerns in employing in the real time and dynamics systems. In order to produce uniform heat flow across top to bottom of the TES system, multiple LHTES have PCMs arranged in the series.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation in the selection of phase change materials based on thermal stratification effect in thermal energy storage system

Christopher

Vikram

Bharathi

2023

Env Prog and Sustain Energy

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This study aims to evaluate the effects of thermal stratification on thermal energy storage (TES) systems during the charging process and choose suitable phase change materials (PCMs) for various layers. The research revealed that fiberglass insulation of 60 mm thick significantly decreased natural convection losses and increased the TES system's potential for energy recovery. For constant heat load, the charging time increased with increasing HTF inlet temperature, but remained constant for the first TES layer at a specified flow rate, resulting in increased storage capacity with minimal heat loss to the surroundings. The solar collector efficiency was shown to be dependent on solar radiation and collector efficiency, with peak efficiency seen at specified periods. The lowest melting point of PCMs at each layer 68°C, 62.7°C, 57°C, and 50°C was chosen based on temperature graphs. For comparing stratification behavior, the “MIX” number versus non‐dimensional charging time plot was effective. Additional experiments are needed to assess the selected PCMs' charging and discharging properties.

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“…Using a porous zone is an efficient passive method in various industrial applications, including petroleum processing, heat exchangers (microporous and direct contact), drying processes, solar collectors, etc. Nevertheless, little attention has been paid to thermal mixing in complex systems like a T-shaped micromixer involving porous regions (Baragh et al, 2018;Baragh et al, 2019;Teggar et al, 2021;Mousavi Ajarostaghi et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Thermal mixing in T-shaped micromixers with a porous block by the lattice Boltzmann method: Influence of the mixing channel configuration

Ajarostaghi

Poncet

2022

Front. Therm. Eng.

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The present paper investigates the thermal mixing and cooling processes in a passive micromixer, which is applicable for the cooling of electronic devices. Employing a porous block and testing different configurations for the mixing channel is considered to enhance the mixing process and cooling performance. A 2D lattice Boltzmann thermal model is utilized to investigate the thermal performance of a T-micromixer with a porous block. Two different types of mixing channel configurations, including a step-shaped and a zigzag-shaped channel, are considered, and the obtained results are compared with those of the simple mixing channel. The thermal mixing and cooling of two miscible fluids, at 50 and 25°C entering the micromixer, are investigated. The results show that changing the mixing channel configuration may create a chaotic laminar flow, which enhances the heat transfer rate between the mixed flow and the channel wall. Whatever the Reynolds number, the step-shaped mixing channel exhibits better mixing performance than the zigzag-shaped one. For the T-micromixer with a zigzag-shaped and step-shaped mixing channel, the cases with h/H = 0.5 and h/H = 0, respectively, exhibit better thermal mixing and cooling performance.

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Performance enhancement of latent heat storage systems by using extended surfaces and porous materials: A state-of-the-art review

Cited by 59 publications

References 149 publications

Characterization of Phase Change Materials Fabricated with Cross-Linked Graphene Aerogels

Characterization of Phase Change Materials Fabricated with Cross-Linked Graphene Aerogels

Experimental investigation in the selection of phase change materials based on thermal stratification effect in thermal energy storage system

Thermal mixing in T-shaped micromixers with a porous block by the lattice Boltzmann method: Influence of the mixing channel configuration

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