Preparation, characterization, thermal energy storage properties and temperature control performance of form-stabilized sepiolite based composite phase change materials

Sarı, Ahmet; Sharma, R. K.; Hekimoğlu, Gökhan; Tyagi, V.V.

doi:10.1016/j.enbuild.2019.02.008

Cited by 81 publications

(22 citation statements)

References 43 publications

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“…Therefore, although the neat paraffin and dodecanoic acid have a comparable enthalpy of phase transitions (about 165 J/g), the composites loaded with paraffin had higher LHS capacity (about 65 J/g) than those loaded with dodecanoic acid (about 35 J/g). Sari et al prepared the PCM/sepiolite composite employing capric acid/stearic acid eutectic mixture (83/17 wt%) as the PCM [78]. The form-stable composite PCM was prepared with the mass fraction of the eutectic mixture of 42 wt%.…”

Section: Sepiolite-based Pcm Compositesmentioning

confidence: 99%

Clay Composites for Thermal Energy Storage: A Review

et al. 2020

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The development of novel materials and approaches for effective energy consumption and the employment of renewable energy sources is one of the current trends in modern material science. With this respect, the number of researches is focused on the effective harvesting and storage of solar energy for various applications. Phase change materials (PCMs) are known to be able to store thermal energy of the sunlight due to adsorption and release of latent heat through reversible phase transitions. Therefore, PCMs are promising as functional additives to construction materials and paints for advanced thermoregulation in building and industry. However, bare PCMs have limited practical applications. Organic PCMs like paraffins suffer from material leakage when undergoing in a liquid state while inorganic ones like salt hydrates lack long-term stability after multiple phase transitions. To avoid this, the loading of PCMs in porous matrices are intensively studied along with the thermal properties of the resulted composites. The loading of PCMs in microcontainers of natural porous or layered clay materials appears as a simple and cost-effective method of encapsulation significantly improving the shape and cyclic stability of PCMs. Additionally, the inclusion of functional clay containers into construction materials allows for improving their mechanical and flame-retardant properties. This article summarizes the recent progress in the preparation of composites based on PCM-loaded clay microcontainers along with their future perspectives as functional additives in thermo-regulating materials.

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Section: Sepiolite-based Pcm Compositesmentioning

confidence: 99%

Clay Composites for Thermal Energy Storage: A Review

et al. 2020

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“…The analogous results in melting temperature variation were also reported in the literature. 23,45 These composites can be used very well in building heating/cooling and other solar thermal energy storage applications such as solar water heating, PVT, and air heating systems.…”

Section: Lhs Properties Of Fs-cpcmsmentioning

confidence: 99%

“…The effective thermal conductivity of this composite was found to be 10 times greater than that pure PEG. Clay-based materials, such as sepiolite, 23 diatomite, 24,25 vermiculite, 26 perlite, 27 and halloysite, 28 that are highly porous in nature have been considered to be a good supporting material for developing composite PCMs. Although these carrier materials possess good PCM holding capacity, they have very low thermal conductivity, which adversely affects their heat charging/discharging performances.…”

Section: Introductionmentioning

confidence: 99%

Development and characterization of form‐stable porous TiO ₂ /tetradecanoic acid based composite PCM with long‐term stability as solar thermal energy storage material

et al. 2020

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The present study focused on the preparation of form-stable composites of 1-tetradecanoic acid (TDA)/titanium dioxide (TiO 2) powder via a facile impregnation method. The use of powdered TiO 2 as porous material and thermal conductivity enhancer for TDA is a novel attempt. The morphological, chemical, and crystalline properties of form-stable composite PCMs (Fs-CPCMs), containing different amounts of TiO 2 , were characterized using field emission scanning electron microscope, Fourier transform infrared spectroscopy, and X-ray diffraction techniques. The finding supports that the produced composites were chemically and structurally stable. The latent heat storage (LHS) properties of composites were obtained from differential scanning calorimeter instrument, and the findings revealed that the Fs-CPCM with 50 mass% TDA has a melting temperature of 52.04 C and a considerably good LHS capacity of 97.75 J/g. The thermal conductivity of TDA was increased remarkably by the addition of TiO 2 micro particles. The results obtained from thermogravimetric analysis and thermal cycling test exhibited that the Fs-CPCM, containing 50 mass% TiO 2 , possesses great thermal degradation durability, cycling chemical stability, and thermal reliability. This composite PCM can be very well used for passive thermal management of electronic devices, automotive components, photovoltaic thermal hybrid designs, solar air/water heating systems, etc.

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“…In China, diatomite is abundant, attainable, and can be applied in many aspects, such as filtering agent, building materials, heat insulator, catalyst support, sorbent, and medicine ingredient . With provision for all mentioned above and recent research results, porous materials including diatomite are one of the suitable candidates for absorbing fatty acids as form‐stable PCM for TES …”

Section: Introductionmentioning

confidence: 99%

“…[28][29][30][31][32][33][34] With provision for all mentioned above and recent research results, porous materials including diatomite are one of the suitable candidates for absorbing fatty acids as form-stable PCM for TES. [35][36][37][38][39][40] As one type of abundant and low-cost supporting matrix, using diatomite as a supporting matrix not only eradicates the leakage issue but also improves thermal conductivity of organic PCM simultaneously. In this sense, impregnating organic PCM into porous diatomite to prepare form-stable CPCMs, which has promising potential in modern building energy saving and industrial solar energy systems, is very meaningful.…”

Section: Introductionmentioning

confidence: 99%

Preparation and performances of palmitic acid/diatomite form‐stable composite phase change materials

Jia

Wang

et al. 2020

Int J Energy Res

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Summary Using palmitic acid (PA) as an organic phase change material (PCM), a series of PA/diatomite composite PCMs (CPCMs) composed of PA absorbed into diatomite mesopores with different mass contents were made through direct impregnation method. Nitrogen adsorption‐desorption curves indicated the porous structure of diatomite with the specific surface area and the mesopore peak at 40 m2/g and 3 to 5 nm, respectively. The form‐stability measurement indicated that the maximum mass loading capacity of PA was 55 wt%. The melting temperature and fusion enthalpy of the PA/diatomite CPCM (55 wt%) were calculated from DSC at 63°C and 88 J/g, respectively. The thermal cycle test implied that the PA/diatomite CPCM with 55‐wt% PA loading showed excellent thermal reliability after 1000 thermal cycles. Moreover, the composite has thermal conductivity at 0.5810 W/m·K and enhanced thermal storage/release rate. PA/diatomite CPCM (55 wt% PA) was a suitable candidate for modern building energy saving and industrial solar energy.

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Preparation, characterization, thermal energy storage properties and temperature control performance of form-stabilized sepiolite based composite phase change materials

Cited by 81 publications

References 43 publications

Clay Composites for Thermal Energy Storage: A Review

Clay Composites for Thermal Energy Storage: A Review

Development and characterization of form‐stable porous TiO ₂ /tetradecanoic acid based composite PCM with long‐term stability as solar thermal energy storage material

Preparation and performances of palmitic acid/diatomite form‐stable composite phase change materials

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Preparation, characterization, thermal energy storage properties and temperature control performance of form-stabilized sepiolite based composite phase change materials

Cited by 81 publications

References 43 publications

Clay Composites for Thermal Energy Storage: A Review

Clay Composites for Thermal Energy Storage: A Review

Development and characterization of form‐stable porous TiO 2 /tetradecanoic acid based composite PCM with long‐term stability as solar thermal energy storage material

Preparation and performances of palmitic acid/diatomite form‐stable composite phase change materials

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Development and characterization of form‐stable porous TiO ₂ /tetradecanoic acid based composite PCM with long‐term stability as solar thermal energy storage material