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Thermal performance analysis of a flat slab phase change thermal storage unit with liquid-based heat transfer fluid for cooling applications

机译：平板平板相变储热单元与液体基传热流体的热性能分析，用于冷却应用

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摘要

This paper presents the results of a thermal performance analysis of a phase change thermal storage unit. The unit consists of several parallel flat slabs of phase change material (PCM) with a liquid heat transfer fluid (HTF) flowing along the passages between the slabs. A validated numerical model developed previously to solve the phase change problem in flat slabs was used. An insight is gained into the melting process by examining the temperatures of the HTF nodes, wall nodes and PCM nodes and the heat transfer rates at four phases during melting. The duration of the melting process is defined based on the level of melting completion. The effects of several parameters on the HTF outlet temperature, heat transfer rate and melting time are evaluated through a parametric study to evaluate the effects of the HTF mass flow rate, HTF inlet temperature, gap between slabs, slab dimensions, PCM initial temperature and thermal conductivity of the container on the thermal performance. The results are used to design a phase change thermal storage unit for a refrigerated truck.
机译：本文介绍了相变储热单元的热性能分析结果。该单元由数个平行的相变材料（PCM）扁平平板组成，液体传热流体（HTF）沿平板之间的通道流动。使用了先前开发的，经过验证的数值模型来解决平板中的相变问题。通过检查HTF节点，壁节点和PCM节点的温度以及熔化过程中四个阶段的传热速率，可以洞悉熔化过程。熔化过程的持续时间是根据熔化完成的级别定义的。通过参数研究评估了几个参数对HTF出口温度，传热速率和熔化时间的影响，以评估HTF质量流量，HTF入口温度，板坯之间的间隙，板坯尺寸，PCM初始温度和热力的影响。容器的热导率对热性能的影响。结果用于设计冷藏卡车的相变储热单元。

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  • 来源
    《Solar Energy》 |2011年第11期|p.3017-3027|共11页
  • 作者

    Ming Liu; Frank Bruno; Wasim Saman;

  • 作者单位

    Barbara Hardy Institute, School of Advanced Manufacturing and Mechanical Engineering, University of South Australia, Mawson Lakes SA5095, Australia;

    Barbara Hardy Institute, School of Advanced Manufacturing and Mechanical Engineering, University of South Australia, Mawson Lakes SA5095, Australia;

    Barbara Hardy Institute, School of Advanced Manufacturing and Mechanical Engineering, University of South Australia, Mawson Lakes SA5095, Australia;

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

    phase change materials; thermal energy storage; TRNSYS;

    机译：相变材料;热能存储;TRNSYS;

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