Clay Composites for Thermal Energy Storage: A Review

Voronin, Denis V.; Иванов, Е. В.; Гущин, П. А.; Fakhrullin, Rawil; Винокуров, В. А.

doi:10.3390/molecules25071504

Cited by 35 publications

(17 citation statements)

References 128 publications

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“…Figure 7 shows the various types of PCMs. Among these PCMs, organic, inorganic and eutectic types are used broadly in buildings [ 45 , 46 ]. Specifically, the selection of a PCM depends upon its temperature range.…”

Section: Phase Change Materialsmentioning

confidence: 99%

Phase-Change Materials in Concrete: Opportunities and Challenges for Sustainable Construction and Building Materials

Sharma

Jang

2022

Materials

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The use of phase-change materials (PCM) in concrete has revealed promising results in terms of clean energy storage. However, the negative impact of the interaction between PCM and concrete on the mechanical and durability properties limits field applications, leading to a shift of the research to incorporate PCM into concrete using different techniques to overcome these issues. The storage of clean energy via PCM significantly supports the UN SDG 7 target of affordable and clean energy. Therefore, the present study focuses on three aspects: PCM type, the effect of PCM on concrete properties, and connecting the outcome of PCM concrete composite to the United Nations sustainable development goals (UN SDGs). The compensation of reduction in strength of PCM-contained concrete is possible up to some extent with the use of nanomaterials and supplementary cementitious materials. As PCM-incorporated concrete is categorized a type of building material, the large-scale use of this material will affect the different stages associated with building lifetimes. Therefore, in the present study, the possible amendments of the different associated stages of building lifetimes after the use of PCM-incorporated concrete are discussed and mapped in consideration of the UN SDGs 7, 11, and 12. The current challenges in the widespread use of PCM are lower thermal conductivity, the trade-off between concrete strength and PCM, and absence of the link between the outcome of PCM-concrete composite and UN SDGs. The global prospects of PCM-incorporated concrete as part of the effort to attain the UN SDGs as studied here will motivate architects, designers, practicing engineers, and researchers to accelerate their efforts to promote the consideration of PCM-containing concrete ultimately to attain net zero carbon emissions from building infrastructure for a sustainable future.

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Section: Phase Change Materialsmentioning

confidence: 99%

Phase-Change Materials in Concrete: Opportunities and Challenges for Sustainable Construction and Building Materials

Sharma

Jang

2022

Materials

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“…As such, most examples of encapsulated phase change materials are in the micrometer range. The second approach consists of impregnating PCMs into high porosity matrices [ 22 , 23 , 24 , 25 ]. The liquid compounds are stabilized through capillary interactions.…”

Section: Thermal Energy Storagementioning

confidence: 99%

A Review of Composite Phase Change Materials Based on Porous Silica Nanomaterials for Latent Heat Storage Applications

et al. 2021

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Phase change materials (PCMs) can store thermal energy as latent heat through phase transitions. PCMs using the solid-liquid phase transition offer high 100–300 J g−1 enthalpy at constant temperature. However, pure compounds suffer from leakage, incongruent melting and crystallization, phase separation, and supercooling, which limit their heat storage capacity and reliability during multiple heating-cooling cycles. An appropriate approach to mitigating these drawbacks is the construction of composites as shape-stabilized phase change materials which retain their macroscopic solid shape even at temperatures above the melting point of the active heat storage compound. Shape-stabilized materials can be obtained by PCMs impregnation into porous matrices. Porous silica nanomaterials are promising matrices due to their high porosity and adsorption capacity, chemical and thermal stability and possibility of changing their structure through chemical synthesis. This review offers a first in-depth look at the various methods for obtaining composite PCMs using porous silica nanomaterials, their properties, and applications. The synthesis and properties of porous silica composites are presented based on the main classes of compounds which can act as heat storage materials (paraffins, fatty acids, polymers, small organic molecules, hydrated salts, molten salts and metals). The physico-chemical phenomena arising from the nanoconfinement of phase change materials into the silica pores are discussed from both theoretical and practical standpoints. The lessons learned so far in designing efficient composite PCMs using porous silica matrices are presented, as well as the future perspectives on improving the heat storage materials.

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“…At low temperatures, organic PCMs such as paraffin or sodium acetate trihydrate (SAT) are normally incorporated into different porous supporting materials, including diatomite [46]), expanded vermiculite [47] and expanded graphite [48]. Due to the microscopic size of the pores of the support materials, this union is identified as a microencapsulated phase change material (mEPCM) [49,50]. Microencapsulation techniques allow the fabrication of advanced PCMs with a greater heat transfer area, reduced reactivity with the outside environment and controlled volume changes during the phase transition.…”

Section: Introductionmentioning

confidence: 99%

Development and Characterization of Concrete/PCM/Diatomite Composites for Thermal Energy Storage in CSP/CST Applications

Miliozzi

Dominici

Candelori³

et al. 2021

Energies

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Thermal energy storage (TES) systems for concentrated solar power plants are essential for the convenience of renewable energy sources in terms of energy dispatchability, economical aspects and their larger use. TES systems based on the use of concrete have been demonstrated to possess good heat exchange characteristics, wide availability of the heat storage medium and low cost. Therefore, the purpose of this work was the development and characterization of a new concrete-based heat storage material containing a concrete mix capable of operating at medium–high temperatures with improved performance. In this work, a small amount of shape-stabilized phase change material (PCM) was included, thus developing a new material capable of storing energy both as sensible and latent heat. This material was therefore characterized thermally and mechanically and showed increased thermal properties such as stored energy density (up to +7%, with a temperature difference of 100 °C at an average operating temperature of 250 °C) when 5 wt% of PCM was added. By taking advantage of these characteristics, particularly the higher energy density, thermal energy storage systems that are more compact and economically feasible can be built to operate within a temperature range of approximately 150–350 °C with a reduction, compared to a concrete-only based thermal energy storage system, of approximately 7% for the required volume and cost.

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Clay Composites for Thermal Energy Storage: A Review

Cited by 35 publications

References 128 publications

Phase-Change Materials in Concrete: Opportunities and Challenges for Sustainable Construction and Building Materials

Phase-Change Materials in Concrete: Opportunities and Challenges for Sustainable Construction and Building Materials

A Review of Composite Phase Change Materials Based on Porous Silica Nanomaterials for Latent Heat Storage Applications

Development and Characterization of Concrete/PCM/Diatomite Composites for Thermal Energy Storage in CSP/CST Applications

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