Microencapsulated PCM thermal-energy storage system

Hawlader, Mohammad Nurul Alam; Uddin, M.S.; Khin, Mya Mya

doi:10.1016/s0306-2619(02)00146-0

Cited by 642 publications

(262 citation statements)

References 3 publications

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“…They concluded that the quality of MEPCM could be improved by ensuring precise pH value and correct amount of surfactants at higher stirring rates. Hawlader et al [68] established the optimal homogenizing time in coacervation method as 10 minutes and the amount of cross-linking agent required as 6-8 ml. They also demonstrated that microencapsulation efficiency is dependent upon the process parameters such as core material ratio, emulsifying time and the amount of cross-linking agent.…”

Section: Complex Coacervationmentioning

confidence: 99%

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

Darkwa

Kokogiannakis

2015

Renewable and Sustainable Energy Reviews

711

267

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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: Complex Coacervationmentioning

confidence: 99%

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

Darkwa

Kokogiannakis

2015

Renewable and Sustainable Energy Reviews

711

267

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“…In other areas such as textiles they were firstly considered some time ago (Gordon, 2001). The main advantage of microcapsules is that new functions can be added and confer more properties such as cosmetic (Gisbert, Ibañez, Bonet, Monllor, Díaz, Montava, 2009), fragrances (Li, Lewis, Stewart, Qian, & Boyter, 2006;Nelson, 2001;Monllor, Bonet, Cases, 2007;Monllor, Bonet, Sánchez, Cases, 2009;Monllor, Capablanca, Bonet, Gisbert, Díaz;Montava, 2010), phase change materials (Fan, Zhang, Wang, Li& Zhu, 2004;Hawlader, Uddin, Khin, 2003;Xiao_Zheng, Zhi-Cheng, Guang-Long, Li-Xian & Tao 2003;Zhang et al, 2004, Karthukeyan, Ramachandran, & Shanmugasundaram, 2014 etc.…”

Section: Introductionmentioning

confidence: 99%

Binder effectiveness of microcapsules applied onto cotton fabrics during laundry

Bonet-Aracil

Bou-Belda

Monllor

et al. 2015

The Journal of The Textile Institute

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Microcapsules can be added to fabric in industrial processes however, they have not been widely spread among industrial companies. In this study we suggest the possibility of reloading microcapsules onto a fabric while cloths are washed. The effectiveness of different resins when microcapsules are applied in washing machine during domestic laundry process has been studied.Microcapsules containing lavender fragrance and melamine formaldehyde shell where adhered to the fabric by means of one acrylic acid as a resin, or some crosslinking agents such as butanetetracarboxylic acid (BTCA) or succinic acid (SUC). In order to evaluate their behaviour some laundering or ironing tests were conducted according to international standards (ISO). Every sample from the laboratory was studied with Scanning Electron Microscopy (SEM) and with a particle size counter. As a result we could observe which was the most suitable auxiliary used to bond microcapsules to fabric, and conclude about the conditions (temperature, concentration, etc.) in which we obtained the optimal results. It was demonstrated that domestic laundry is a suitable process to incorporate microcapsules to garments.

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“…8 for details [66]). Hawlader et al [67] indicated that the optimal homogenizing time was 10 min and the amount of crosslinking agent was 6-8 ml in the coacervation method; and they also demonstrated that microencapsulation efficiency depended upon the process parameters, such as core to coating ratio, emulsifying time and the amount of cross-linking agent. Alvarado et al…”

Section: Complex Coacervationmentioning

confidence: 99%

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

Zhao

Zhang

2011

Renewable and Sustainable Energy Reviews

413

155

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The use of latent heat storage, microencapsulated phase change materials (MEPCMs), is one of the most efficient ways of storing thermal energy and it has received a growing attention in the past decade. However, there is no complete overview of its utilisation in thermal energy storage systems, and the information is widely spread in the literature. In this paper, a comprehensive review has been carried out for MEPCMs. Four aspects have been the focus of this review: fabrication and characterization of MEPCMs, applications of MEPCMs to the textile and building, fundamental properties of microencapsulated phase change material slurry (MPCS) and application of MPCS to the thermal energy storage system. Over 140 recent publications are referenced in this paper.

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Microencapsulated PCM thermal-energy storage system

Cited by 642 publications

References 3 publications

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

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

Binder effectiveness of microcapsules applied onto cotton fabrics during laundry

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

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