Review on microencapsulated phase change materials (MEPCMs): Fabrication, characterization and applications

Zhao, C.Y.; Zhang, Guan H.

doi:10.1016/j.rser.2011.07.019

Cited by 408 publications

(151 citation statements)

References 138 publications

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“…Most of the organic PCMs also have low thermal conductivity and poor thermal response as well as being flammable which pose a serious potential danger of fire outbreak. Meanwhile, most inorganic PCMs are known to be corrosive which could cause irretrievable damage to storage containers [10]. These problems may be overcome by employing encapsulation technology to produce enhanced microencapsulated phase change material (MEPCM) or nanoencapsulated phase change material (NEPCM) for various applications.…”

Section: Introductionmentioning

confidence: 99%

Review of solid–liquid phase change materials and their encapsulation technologies

Darkwa

Kokogiannakis

2015

Renewable and Sustainable Energy Reviews

698

251

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Various types of solid-liquid phase change materials (PCMs) have been reviewed for thermal energy storage applications. The review has shown that organic solid-liquid PCMs have much more advantages and capabilities than inorganic PCMs but do possess low thermal conductivity and density as well as being flammable. Inorganic PCMs possess higher heat storage capacities and conductivities, cheaper and readily available as well as being non-flammable, but do experience supercooling and phase segregation problems during phase change process. The review has also shown that eutectic PCMs have unique advantage since their melting points can be adjusted. In addition, they have relatively high thermal conductivity and density but they possess low latent and specific heat capacities. Encapsulation technologies and shell materials have also been examined and limitations established. The morphology of particles was identified as a key influencing factor on the thermal and chemical stability and the mechanical strength of encapsulated PCMs. In general, in-situ polymerization method appears to offer the best technological approach in terms of encapsulation efficiency and structural integrity of core material. There is however the need for the development of enhancement methods and standardization of testing procedures for microencapsulated PCMs. Abstract: Various types of solid-liquid phase change materials (PCMs) have been reviewed for thermal energy storage applications. The review has shown that organic solid-liquid PCMs have much more advantages and capabilities than inorganic PCMs but do possess low thermal conductivity and density as well as being flammable. Inorganic PCMs possess higher heat storage capacities and conductivities, cheaper and readily available as well as being non-flammable, but do experience supercooling and phase segregation problems during phase change process. The review has also shown that eutectic PCMs have unique advantage since their melting points can be adjusted. In addition they have relatively high thermal conductivity and density but they possess low latent and specific heat capacities. Encapsulation technologies and shell materials have also been examined and limitations established. The morphology of particles were identified as a key influencing factor on the thermal and chemical stability and the mechanical strength of encapsulated PCMs. In general, in-situ polymerization method appears to offer the best technological approach in terms of encapsulation efficiency and structural integrity of core material. There is however the need for the development of enhancement methods and standardization of testing procedures for microencapsulated PCMs.

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Section: Introductionmentioning

confidence: 99%

Review of solid–liquid phase change materials and their encapsulation technologies

Darkwa

Kokogiannakis

2015

Renewable and Sustainable Energy Reviews

698

251

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“…Indeed, many review articles devoted to the description of construction solutions with PCMs and their thermal performance analysis can be found in literature [9,75,[78][79][80][81]83,84,[166][167][168][169][170][171][172][173][174][175][176][177][178][179]. An updated review on PCMs integrated into transparent building elements was recently carried out by Fokaides et al [180].…”

Section: Phase Change Materialsmentioning

confidence: 99%

Energy efficiency and thermal performance of lightweight steel-framed (LSF) construction: A review

Soares

Santos

Gervásio

et al. 2017

Renewable and Sustainable Energy Reviews

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The improvement of the use of renewable energy sources, such as solar thermal energy, and the reduction of energy demand during the several stages of buildings' life cycle is crucial towards a more sustainable built environment. This paper presents an overview of the main features of lightweight steel-framed (LSF) construction with cold-formed elements from the point of view of life cycle energy consumption. The main LSF systems are described and some strategies for reducing thermal bridges and for improving the thermal resistance of LSF envelope elements are presented. Several passive strategies for increasing the thermal storage capacity of LSF solutions are discussed and particular attention is devoted to the incorporation of phase change materials (PCMs). These materials can be used to improve indoor thermal comfort, to reduce the energy demand for air-conditioning and to take advantage of solar thermal energy. The importance of reliable dynamic and holistic simulation methodologies to assess the energy demand for heating and cooling during the operational phase of LSF buildings is also discussed. Finally, the life cycle assessment (LCA) and the environmental performance of LSF construction are reviewed to discuss the main contribution of this kind of construction towards more sustainable buildings.

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“…The encapsulated PCMs cannot only maintain their microscopic solid form during the phase change processes to improve the ease of handling but also provide a large heat transfer area [13]. Most of the literatures indicated that both organic polymers and inorganic materials could be employed as shell materials to encapsulate PCMs through chemical processes; such as suspension polymerization [14], interfacial polycondensation [15], in situ polycondensation [16], in situ precipitation [17] and other special in situ processes [18]. These shell materials covered polyurea-formaldehyde resin [19], melamineformaldehyde resin, poly(methyl methacrylate) (PMMA) [20], polystyrene [21], CaCO 3 [22], SiO 2 [23], TiO 2 [24], Al 2 O 3 [25], and so more.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of a Novel Nanoencapsulated n-Eicosane Phase Change Material with Inorganic Silica Shell Material for Enhanced Thermal Properties through Sol-Gel Route

H.G¹,

Zhang²,

Qufu³

2017

J Textile Sci Eng

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Review on microencapsulated phase change materials (MEPCMs): Fabrication, characterization and applications

Cited by 408 publications

References 138 publications

Review of solid–liquid phase change materials and their encapsulation technologies

Review of solid–liquid phase change materials and their encapsulation technologies

Energy efficiency and thermal performance of lightweight steel-framed (LSF) construction: A review

Synthesis of a Novel Nanoencapsulated n-Eicosane Phase Change Material with Inorganic Silica Shell Material for Enhanced Thermal Properties through Sol-Gel Route

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