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Experimental Study on Thermal Characteristics of Finned Coil LHSU Using Paraffin as Phase Change Material

机译：石蜡为相变材料的翅片管LHSU热特性实验研究

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摘要

It is well known that attaching fins on the tubes surfaces can enhance the heat transfer into and out from the phase change materials (PCMs). This paper presents the results of an experimental study on the thermal characteristics of finned coil latent heat storage unit (LHSU) using paraffin as the phase change material (PCM). The paraffin LHSU is a rectangular cube consists of continuous horizontal multibended tubes attached vertical fins at the pitches of 2.5, 5.0, and 7.5 mm that creates the heat transfer surface. The shell side along with the space around the tubes and fins is filled with the material RT54 allocated to store energy of water, which flows inside the tubes as heat transfer fluid (HTF). The measurement is carried out under four different water flow rates: 1.01, 1.30, 1.50, and 1.70 L/min in the charging and discharging process, respectively. The temperature of paraffin and water, charging and discharging wattage, and heat transfer coefficient are plotted in relation to the working time and water flow rate.
机译：众所周知，将翅片附在管表面上可以增强热传递到相变材料（PCM）中以及从相变材料（PCM）传出。本文介绍了以石蜡为相变材料（PCM）的翅片式潜热单元（LHSU）的热特性的实验研究结果。石蜡LHSU是一个矩形立方体，由连续的水平多弯管和垂直的散热片组成，间距为2.5、5.0和7.5 mm，可形成传热表面。壳体侧面以及管子和散热片周围的空间充满了分配用于存储水能的材料RT54，水以热传递流体（HTF）的形式在管子内部流动。在充电和放电过程中分别以四种不同的水流量进行测量：1.01、1.30、1.50和1.70 L / min。绘制了与工作时间和水流量相关的石蜡和水的温度，充放电瓦数以及传热系数。

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  • 来源
    《Journal of Heat Transfer》 |2017年第4期|042901.1-042901.7|共7页
  • 作者

    Guansheng Chen; Nanshuo Li; Huanhuan Xiang; Fan Li;

  • 作者单位

    School of Materials and Energy, Guangdong University of Technology, Guangzhou Higher Education Mega-Center, Guangzhou 510006, China;

    School of Materials and Energy, Guangdong University of Technology, Guangzhou Higher Education Mega-Center, Guangzhou 510006, China;

    School of Materials and Energy, Guangdong University of Technology, Guangzhou Higher Education Mega-Center, Guangzhou 510006, China;

    School of Materials and Energy, Guangdong University of Technology, Guangzhou Higher Education Mega-Center, Guangzhou 510006, China;

  • 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

    fin and tube; phase change; latent heat storage; paraffin;

    机译：鳍片和管;相变潜热存储石蜡;

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