Review on Microencapsulated Phase Change Materials (MPCM) Slurries: Materials, Rheological Behavior and Applications

Zhang, Pan; Qiu, Zhong Zhu; He, Mengyuan

doi:10.4028/www.scientific.net/amr.953-954.1109

Cited by 6 publications

(3 citation statements)

References 10 publications

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“…Bulk storage is similar to heat exchangers with respect to the structure. 102 The methods to form encapsulated PCMs vary depending on the material wrapped. 100 The aim of structural diversification is to increase the heat transfer efficiency by increasing the heat transfer area.…”

Section: Classification Of Containersmentioning

confidence: 99%

“…101 Encapsulated PCMs are generally used for microencapsulation and nanoencapsulation with diameters smaller than 1 cm and 1 mm, respectively. 102 The methods to form encapsulated PCMs vary depending on the material wrapped. Emulsion, in situ polymerization, interfacial polymerization, electroplating, sol-gel processing, and mechanical packaging methods can be used for both inorganic and organic PCMs.…”

Section: Classification Of Containersmentioning

confidence: 99%

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Review of latent thermal energy storage systems for solar air‐conditioning systems

et al. 2019

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Solar air conditioning is an important approach to satisfy the high demand for cooling given the global energy situation. The application of phase-change materials (PCMs) in a thermal storage system is a way to address temporary power problems of solar air-conditioning systems. This paper reviews the selection, strengthening, and application of PCMs and containers in latent thermal storage system for solar air-conditioning systems. The optimization of PCM container geometry is summarized and analyzed. The hybrid enhancement methods for PCMs and containers and the cost assessment of latent thermal storage system are discussed. The more effective heat transfer enhancement using PCMs was found to mainly involve micro-nano additives. Combinations of fins and nanoadditives, nanoparticles, and metal foam are the main hybrid strengthening method. However, the thermal storage effect of hybrid strengthening is not necessarily better than single strengthening. At the same time, the latent thermal storage unit has less application in the field of solar airconditioning systems, especially regarding heat recovery, because of its cost and thermal storage time. The integration of latent thermal storage units and solar air-conditioning components, economic analysis of improvement technology, and quantitative studies on hybrid improvement are potential research directions in the future.

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Section: Classification Of Containersmentioning

confidence: 99%

Section: Classification Of Containersmentioning

confidence: 99%

Review of latent thermal energy storage systems for solar air‐conditioning systems

et al. 2019

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“…Phase Change Slurries (PCS) [103] is another important part of MPCM [104,105]. When the MPCM is fabricated in a dried state [106,107] it can be mixed with a carrier fluid, mainly water [108] or with other substances such as glycol [109,110] or glycerol [111,112], creating a PCS.…”

Section: Phase Change Slurriesmentioning

confidence: 99%

Types, methods, techniques, and applications for microencapsulated phase change materials (MPCM): A review

Giró-Paloma

Martínez

Cabeza

et al. 2016

Renewable and Sustainable Energy Reviews

467

151

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Phase Change Materials (PCM) can be employed in many fields because of their capacity to absorb and release energy when it is necessary. Nowadays, the number of studies about these materials is increasing because of their benefits in energy systems. This paper reviews the previous researches and developments on microencapsulated phase change materials (MPCM) in thermal energy storage (TES) systems, focusing on the different methods of encapsulations and also the different applications of these materials. This review aims to be a useful guide for the researchers in this area, because it explains the different types of phase change core materials, the different shells, the methods to microencapsulate these PCM, the most used techniques to characterize these microencapsulated phase change materials, and a revision of the main applications.Storage these type of materials to store energy, and release it when the systems needed, for example, the chilly bins studied by Oró et al. [15] to enhance the thermal performance. Also, it is possible to use phase change materials in cold storage needs, as Oró et al. [16] evaluate, studying the compatibility of PCM with metallic materials, but a common problem in PCM cooling applications is the subcooling, which happens when a material is cooled and the crystallization does not start below the freezing temperature [17].Another very significant application of PCM is the one in the building sector [18], in passive applications like floors [19], walls [20-23] (for example conventional and alveolar brick [24]), and ceiling studies. There is another case, which is in active systems in domestic applications as heating [25] and hot water [26][27][28][29].Since PCM undergo the solid-liquid states, they need to be encapsulated for their inclusion in the final system. Due to the leakage in the liquid state when mixing the PCM with other materials, such as building construction materials [30], and because of the corrosion and the thermal reliability, the possibility to make a polymeric container for PCM, in small vessels, using the encapsulation technology and producing capsules calling them encapsulated Phase Change Material for energy storage [31] has been investigated. Encapsulation techniques vary from macroencapsulation in slabs, panels, etc. to microencapsulation [32,33]. When the sizes of these capsules are micrometers, these are called Microencapsulated Phase Change Material (MPCM), which consisted on a polymeric shell and a core made of the storage material. The microencapsulation is a process of enclosing micron-sized particles of solids or droplets of liquids or gases in an inert shell, which in turn isolates and protects them from the external environment. The captivity of waxes into the microcapsules allows to increase the heat transfer[3] and to control de volume changes when the phase change is happening. Microencapsulation methodology for PCM still needs to be improved because the microcapsules can break easily when they collide with other microcapsules when they are used in...

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Shape-stabilized nanosilver-modified grapefruit peel-based porous carbon composite phase change material with high thermal conductivity, photothermal conversion performance and thermal management capability

Xie,

Xiao,

Chen

et al. 2024

Journal of Energy Storage

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Review on Microencapsulated Phase Change Materials (MPCM) Slurries: Materials, Rheological Behavior and Applications

Cited by 6 publications

References 10 publications

Review of latent thermal energy storage systems for solar air‐conditioning systems

Review of latent thermal energy storage systems for solar air‐conditioning systems

Types, methods, techniques, and applications for microencapsulated phase change materials (MPCM): A review

Shape-stabilized nanosilver-modified grapefruit peel-based porous carbon composite phase change material with high thermal conductivity, photothermal conversion performance and thermal management capability

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