An experimental study of convective heat transfer with microencapsulated phase change material suspension: Laminar flow in a circular tube under constant heat flux

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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“…Chen et al [141] used a new expression of "Stefan number", according to the physical definition of Stefan number.…”

Section: Forced Convection Heat Transfermentioning

confidence: 99%

“…A series of experimental investigations have been carried out to study the flow and convective heat transfer behaviours of MPCS by using microencapsulated 1-bromohexadecane (C 16 H 33 Br) as phase change material [139], [140], [141], [142].…”

Section: Forced Convection Heat Transfermentioning

confidence: 99%

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

Zhao

Zhang

2011

Renewable and Sustainable Energy Reviews

408

147

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“…Thermal performance tends to increase as the mass fraction increases, but the optimal mass fraction balances both the heat transfer enhancement and the pumping power increase [15,16,23]. To improve the effective thermal conductivity of slurries, investigators have studied hybrid suspensions of alumina nanoparticles and PCMs [21,22]; however, experiments showed that the viscosity of hybrid suspensions is anomalously high, exceeding enhancements in heat transfer.…”

Section: Introductionmentioning

confidence: 99%

“…Experiments have also been conducted to evaluate the heat transfer characteristics of PCM suspensions [13][14][15][16][17][18][19][20][21][22][23];…”

Section: Introductionmentioning

confidence: 99%

Focusing of phase change microparticles for local heat transfer enhancement in laminar flows

Lenert

Nam

Yilbaş

et al. 2013

International Journal of Heat and Mass Transfer

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Phase change material (PCM) suspensions have received wide spread attention for increased thermal storage in various thermal systems such as heat sinks for electronics and solar thermal applications. To achieve further heat transfer enhancement, this paper investigates the effect of focusing micron-sized phase-change particles (PCMs) to a layer near the heated wall of a parallel plate channel. A numerical model for fully-developed laminar flow with a constant heat flux applied to one wall is developed. Melting of the focused PCMs is incorporated using a temperature-dependent effective heat capacity. The effect of channel height, height of the focused PCM stream, heat flux, and fluid properties on the peak were determined, respectively. The local heat transfer performance is optimized when the PCMs are confined to within 30% of the channel height. The present work provides an extended understanding of local heat transfer characteristics during melting of flowing PCM suspensions, and offers a new method for enhancing heat transfer performance in various thermal-fluidic systems.Keywords: Phase-change material (PCM), melting, local heat transfer, focusing, particle distribution, mini/microchannels. Re Reynolds number: ρUD h /µ [-] Nomenclature

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“…One latest method gaining importance is using Phase Change Material particles with fluid in microchannels, this improve the heat storage capacity and helps in effective heat removal [1][2][3][4][5][6][7][8][9][10][11]. The drawback of this method is that by increasing the PCM particles volume concentration in the slurry, viscosity of slurry also increases which in turn increase the pumping power demands and entropy generation [2].…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Entropy Generation and Pressure Drop Performance of Phase Change Material Slurries in Microchannels of High Heat Generating Electronic Devices

Ali¹,

Ahmad²

2018

Theoretical & Applied Science

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An experimental study of convective heat transfer with microencapsulated phase change material suspension: Laminar flow in a circular tube under constant heat flux

Cited by 214 publications

References 18 publications

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

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

Focusing of phase change microparticles for local heat transfer enhancement in laminar flows

Numerical Analysis of Entropy Generation and Pressure Drop Performance of Phase Change Material Slurries in Microchannels of High Heat Generating Electronic Devices

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