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Materials 2016, 9(5), 361; doi:10.3390/ma9050361

Macro-Encapsulated PCM Cylinder Module Based on Paraffin and Float Stones

School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang 110168, China
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Academic Editors: Luisa F. Cabeza and A. Inés Fernández
Received: 31 January 2016 / Revised: 2 May 2016 / Accepted: 4 May 2016 / Published: 12 May 2016
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Abstract

Organic phase change material (PCM) with macro-encapsulation is attractive in energy storage applications as it has relatively low cost. This study focuses on using PET plastic pipes to encapsulate paraffin and using low-cost float stones to increase the thermal conductivity of PCM modules as they have a special structure of high porosity. Float stones were immersed in the liquid PCM and an ultrasonic welding method used to prevent leakage of the PET plastic pipes. Scanning electron microscopy (SEM) was used to discover the appearance of the composite PCM. The thermal performance of the PCM cylinder module was analyzed through experimental tests of a constant-temperature water bath and numerical simulations. The result indicates that this PCM Ccylinder module is superior in thermal energy storage compared with the reference module even though fewer PCM was contained and the latent heat loss is considerable. The pipe diameter is an important parameter when using this kind of PCM cylinder module in water tanks. View Full-Text
Keywords: PCM cylinder module; macro-encapsulation; float stone; paraffin; thermal performance PCM cylinder module; macro-encapsulation; float stone; paraffin; thermal performance
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Huang, K.; Liang, D.; Feng, G.; Jiang, M.; Zhu, Y.; Liu, X.; Jiang, B. Macro-Encapsulated PCM Cylinder Module Based on Paraffin and Float Stones. Materials 2016, 9, 361.

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