Performance of energy storage system containing cement mortar and PCM/epoxy/SiC composite fine aggregate

Yoo, Dong Ho; Jeon, In Kyu; Woo, Byeong Hun; Kim, Hong Gi

doi:10.1016/j.applthermaleng.2021.117445

Cited by 23 publications

(9 citation statements)

References 36 publications

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“…This improved thermal conductivity by 90.4 % to 0.476 W/mk, and also further reinforced the structure for improved strength. While Yoo et al [40] incorporated SiC in the form of an epoxy-SiC coating for Pa/zeolite composites, followed by a fume silica layer (Figure 10a). With 15 % loading of SiC, thermal conductivity of the composite improved by about 14 % to 0.72 W/mK.…”

Section: Silicon-base Materials Coated Onto Pcm Compositesmentioning

confidence: 99%

“…Nevertheless, other methods such as incorporating nucleating agents may help to mitigate the situation. [40] (bi) SEM image of, and EDS elemental mapping of (bii) Fe, (biii) C, and (biv) Si elements of the cross-section of triple layer iron capsules. Copyright 2017 Elsevier B.V. [91] Readapted with permission.…”

Section: Silicon-base Materials In Encapsulation Shell or Matrixmentioning

confidence: 99%

“…The former two methods are associated with sol-gel reactions, and it generally involves hydrolysis and polycondensation of silicon precursors to form a silica network as a shell material to encapsulate the core PCM, [27] or a support matrix for PCM adsorption [16a] respectively. While the latter two infiltrates PCM into porous silicon-based materials such as silica, [36] aerogels [37] or mesoporous silica [38] which can be synthesized by sol-gel reaction, or naturally occurring minerals such as clay, [39] zeolites, [40] vermiculite, [23,41] perlite [42] etc. These porous materials are able to adsorb PCM in their pores through capillary and surface tension force which contributes to structural strength while preventing the PCM from leaking.…”

Section: Pcm Containment -Pcm Encapsulation Via Silicon-based Materialsmentioning

confidence: 99%

“…(a) Fabrication method of TESA. Copyright 2021 Elsevier Ltd [40]. (bi) SEM image of, and EDS elemental mapping of (bii) Fe, (biii) C, and (biv) Si elements of the cross-section of triple layer iron capsules.…”

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confidence: 99%

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Recent advancement in the development of silicon‐based phase change materials

Yun Debbie Soo,

Min Regine See,

et al. 2023

ChemistrySelect

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Phase change materials (PCMs) have been widely recognized as efficient solutions for thermal management across various industries, including logistics, construction, electronics, and others. Nevertheless, these materials encounter challenges such as leakage, poor thermal conductivity, and supercooling. To address these challenges, a comprehensive examination was conducted on the recent advancements pertaining to silicon‐based materials. These studies include their application as high temperature PCMs, as encapsulation matrices, and their integration as additives to enhance material properties. Aluminum–silicon (Al−Si) alloys offer a viable thermal management solution for high‐temperature applications, such as those found in car batteries. Silicon dioxide (SiO2), silicon carbide (SiC), and silicate‐based minerals have demonstrated the ability to synergistically encapsulate PCMs to prevent leakage, enhance thermal conductivity, and mitigate supercooling. However, the efficacy of these strategies in reducing supercooling varies, and a considerable number of studies have reported an exacerbation. Therefore, appropriate material selection and fine tuning for formulation are necessary. This review critically assesses silicon‐based materials as a component of PCM composite that have been developed over the years. Also, it presents an academic analysis of the selection of silicon‐based materials and the design strategy for PCM composites to optimize PCM formulations according to specific desired properties.

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Section: Silicon-base Materials Coated Onto Pcm Compositesmentioning

confidence: 99%

Section: Silicon-base Materials In Encapsulation Shell or Matrixmentioning

confidence: 99%

Section: Pcm Containment -Pcm Encapsulation Via Silicon-based Materialsmentioning

confidence: 99%

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confidence: 99%

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Recent advancement in the development of silicon‐based phase change materials

Yun Debbie Soo,

Min Regine See,

et al. 2023

ChemistrySelect

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“…The indoor comfort provided by a modern life style comes at a cost of consuming enormous amounts of energy which, inevitably, leads to large CO2 emissions. Although, recently, an increasing quantity of required energy comes from renewable sources, there is still a stringent need to develop new materials [7] with improved thermal insulation properties and to correctly assess their performance. Even in this aspect, zeolites showed promising results and research is still on-going [8].…”

Section: Introductionmentioning

confidence: 99%

The Use of Artificial Neural Network for Predicting the Thermal Conductivity of Cement Based Mortar with Natural Zeolites

Covatariu,

Toma,

Alexa-Stratulat

et al. 2024

IOP Conf. Ser.: Mater. Sci. Eng.

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Zeolites, in their natural state, have been used in construction materials since ancient times. The pozzolanic activity of zeolites and their use as supplementary cementitious materials has been investigated over the past three decades. The indoor comfort provided by a modern life style comes at a cost of consuming enormous amounts of energy. Materials with improved insulation properties are continuously researched and the use of zeolites showing encouraging results. The paper presents experimental results obtained on different cement-based mortar mixes incorporating natural zeolites. The main parameters of the research were: substitution of cement and sand by natural zeolites, three different replacement percentages for cement and sand (10%, 20% and 30%) and the curing age of mortar specimens (14 days, 21 days and 28 days). An artificial neural network (ANN) was developed to predict the values of the thermal conductivity by taking into account parameters such as density, humidity and surface temperature of the mortar samples. The ANN was able to accurately predict the experimental results for the thermal conductivity of cement-based mortars with natural zeolites.

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