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

Macro-Encapsulated PCM Cylinder Module Based on Paraffin and Float Stones.
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DOI:
10.3390/ma9050361
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发表时间:
2016-05-12
期刊:
Materials (Basel, Switzerland)
影响因子:
--
通讯作者:
Jiang B
Jiang B
中科院分区:
其他
文献类型:
--
作者:
Huang K;Liang D;Feng G;Jiang M;Zhu Y;Liu X;Jiang B

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具有宏观封装的有机相变材料(PCM)由于成本相对较低,在储能应用中具有吸引力。本研究的重点是使用 PET 塑料管封装石蜡,并使用低成本的浮石来提高 PCM 模块的导热率,因为它们具有高孔隙率的特殊结构。将浮石浸入液体 PCM 中,并使用超声波焊接方法来防止 PET 塑料管泄漏。使用扫描电子显微镜 (SEM) 观察复合 PCM 的外观。通过恒温水浴实验测试和数值模拟分析了PCM气缸模块的热性能。结果表明,尽管 PCM 含量较少且潜热损失相当大,但与参考模块相比,该 PCM C缸模块的热能存储性能优越。在水箱中使用这种PCM气缸模块时,管道直径是一个重要参数。
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.
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