Melting and solidification of PCMs inside a spherical capsule: A critical review

Kenisarin, Murat; Mahkamov, Khamid; Costa, Sol Carolina; Makhkamova, Irina

doi:10.1016/j.est.2019.101082

Cited by 113 publications

(25 citation statements)

References 94 publications

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“…Efficient energy storage systems have emerged because of the interest in reducing the greenhouse gas (GHG) emissions caused by the increasing energy demand [ 1 ]. Consequently, it is essential to boost the current alternatives to optimize the use of available energy resources and minimize the environmental impact caused by the usage of fossil fuels.…”

Section: Introductionmentioning

confidence: 99%

Thermal Storage of Nitrate Salts as Phase Change Materials (PCMs)

et al. 2021

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This study presents the energy storage potential of nitrate salts for specific applications in energy systems that use renewable resources. For this, the thermal, chemical, and morphological characterization of 11 samples of nitrate salts as phase change materials (PCM) was conducted. Specifically, sodium nitrate (NaNO3), sodium nitrite (NaNO2), and potassium nitrate (KNO3) were considered as base materials; and various binary and ternary mixtures were evaluated. For the evaluation of the materials, differential Fourier transform infrared spectroscopy (FTIR), scanning calorimetry (DSC), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM) to identify the temperature and enthalpy of phase change, thermal stability, microstructure, and the identification of functional groups were applied. Among the relevant results, sodium nitrite presented the highest phase change enthalpy of 220.7 J/g, and the mixture of 50% NaNO3 and 50% NaNO2 presented an enthalpy of 185.6 J/g with a phase change start and end temperature of 228.4 and 238.6 °C, respectively. This result indicates that sodium nitrite mixtures allow the thermal storage capacity of PCMs to increase. In conclusion, these materials are suitable for medium and high-temperature thermal energy storage systems due to their thermal and chemical stability, and high thermal storage capacity.

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Section: Introductionmentioning

confidence: 99%

Thermal Storage of Nitrate Salts as Phase Change Materials (PCMs)

et al. 2021

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“…Abundant review articles have been published in the field of energy storage, including: general studies on Energy storage types and applications [41], generalized reviews covering the use of PCM in several applications covering all ranges of temperatures [30], specified reviews covering the use of PCM in building applications only [24,42,43], critical articles covering experimental researches on the usage of PCM in buildings [44], and critical articles related to: PCM transition studies with specific encapsulation (Spherical Capsules for example [45]) and used storage containers [46]. A summary of some recent review articles in the domain of PCM-TES is presented in section 1.1 below.…”

Section: Introductionmentioning

confidence: 99%

A review on phase change materials for thermal energy storage in buildings: Heating and hybrid applications

Faraj

Khaled

Faraj

et al. 2021

Journal of Energy Storage

185

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Researchers worldwide are investigating thermal energy storage, especially phase change materials, for their substantial benefits in improving energy efficiency, sustaining thermal comfort in buildings and contributing to the reduction of environmental pollution. Residential buildings and commercial constructions, being dependent on heating and cooling systems, are subjected to the utilization of PCM technology through several applications. The current study presents a state-of-the-art review that covers recent literature on thermal energy storage systems utilizing PCMs for buildings. The reviewed applications are heating and hybrid applications, that are categorized as passive and active systems. A summary of the PCMs used, applications, thermo-physical properties and incorporation methods are presented as well. The study emphasizes the promising effectiveness of PCM in building heating applications, and highlights the significance of PCM system hybridization. The study shows that experimental investigations on commercial constructions, and hybrid systems development and optimization, are still required. Finally, possible combinations of active and passive heating applications with their auspicious benefits in terms of energy efficiency augmentation, are recommended. Highlights  State-of-the-art review on PCM building applications for heating and hybrid systems  Active and Passive classification for heating and hybrid systems  Challenges altering the PCM technology for energy-efficient buildings are addressed  Hybridization of active and passive systems forms a potential method toward NZEB

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“…There are informative review papers which examined the heat transfer process in the TES system [3,4]. Furthermore, Kenisarin et al [5] comprehensively reviewed the heat transfer mechanism of PCM in spherical geometry. Pedroso and Domoto [6] analytically examined the solidification within spherical container by utilizing perturbation technique under constant wall temperature.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on Solidification of Phase Change Materials Embedded with Metal Foam

Asker

Genceli

2021

European Mechanical Science

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This work investigates the solidification of phase change material (PCM) embedded with metal foam (MF) in a spherical capsule which its outer layer is exposed to convective heat transfer. The one-dimensional energy equation is resolved by performing finite volume method accompanied with temperature transforming technique. Four separate scenarios are developed for different porosity value of MF in order to analyze the thermal behavior of composite PCM with MF. The numerical model is validated by experimental data taken from the literature and substantially good agreement is demonstrated. The results show that at the case where the porosity ε =0.92, the elapsed time for complete solidification is decreases by 88% compared to the case without MF (ε =1.0).

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Melting and solidification of PCMs inside a spherical capsule: A critical review

Cited by 113 publications

References 94 publications

Thermal Storage of Nitrate Salts as Phase Change Materials (PCMs)

Thermal Storage of Nitrate Salts as Phase Change Materials (PCMs)

A review on phase change materials for thermal energy storage in buildings: Heating and hybrid applications

Numerical Study on Solidification of Phase Change Materials Embedded with Metal Foam

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