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首页> 外文期刊>Energy Conversion & Management >Experimental determination of the heat transfer and cold storage characteristics of a microencapsulated phase change material in a horizontal tank
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Experimental determination of the heat transfer and cold storage characteristics of a microencapsulated phase change material in a horizontal tank

机译：实验确定卧式罐中微胶囊相变材料的传热和蓄冷特性

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摘要

In the present paper, the performance of a microencapsulated phase change material (in 45% w/w concentration) for low temperature thermal energy storage, suitable for air conditioning applications is studied. The results are compared to a sensible heat storage unit using water. Thermo-physical properties such as the specific heat, enthalpy variation, thermal conductivity and density are also experimentally determined. The non-Newtonian shear-thickening behavior of the phase change material slurry is quantified. Thermal energy performance is experimentally determined for a 1001 horizontal tank. The heat transfer between the heat transfer fluid and the phase change material was provided by a tube-bundle heat exchanger inside the tank. The results show that the amount of energy stored using the phase change material is 53% higher than for water after 10 h of charging, for the same storage tank volume. It was found that the heat transfer coefficient between the phase change material and the tube wall increases during the phase change temperature range, however it remains smaller than the values obtained for water.
机译：在本文中，研究了适用于空调应用的微囊化相变材料（浓度为45％w / w）用于低温热能存储的性能。将结果与使用水的显热存储单元进行比较。还可以通过实验确定热物理性质，例如比热，焓变，热导率和密度。量化了相变材料浆料的非牛顿剪切增稠行为。实验确定了1001水平罐的热能性能。传热流体与相变材料之间的传热是由罐内的管束式热交换器提供的。结果表明，对于相同的储罐容量，使用相变材料存储的能量比充电10小时后的水高出53％。已经发现，在相变温度范围内，相变材料与管壁之间的传热系数增加，但是仍然小于水的传热系数。

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  • 来源
    《Energy Conversion & Management》 |2015年第4期|275-285|共11页
  • 作者

    Yosr Allouche; Szabolcs Varga; Chiheb Bouden; Armando C. Oliveira;

  • 作者单位

    Universite de Tunis El Manor, Ecole Nationale d'Ingenieurs de Tunis, LR-11-ES16, Laboratoire de Materiaux, Optimisation et Energie pour la Durabilite, 1002 Tunis, Tunisia,Center for Renewable Energy Research CIENER, Faculty of Engineering, University of Porto, Rua Roberto Frias, 4200-465 Porto, Portugal;

    Center for Renewable Energy Research CIENER, Faculty of Engineering, University of Porto, Rua Roberto Frias, 4200-465 Porto, Portugal;

    Universite de Tunis El Manor, Ecole Nationale d'Ingenieurs de Tunis, LR-11-ES16, Laboratoire de Materiaux, Optimisation et Energie pour la Durabilite, 1002 Tunis, Tunisia;

    Center for Renewable Energy Research CIENER, Faculty of Engineering, University of Porto, Rua Roberto Frias, 4200-465 Porto, Portugal;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Cold storage; Microencapsulated phase change materials; Effectiveness; Latent heat storage; Sensible heat storage;

    机译：冷库;微囊相变材料;效力;潜热存储;显热存储;

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