Heat transfer performance of hollow aluminium structure filled with PCM

ZHANG Jiajie; QU Zhiguo; MA Suxia; YANG Yanxia

doi:10.11949/j.issn.0438-1157.20161417

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Heat transfer performance of hollow aluminium structure filled with PCM

更新时间：2025-12-10

- Heat transfer performance of hollow aluminium structure filled with PCM
- CIESC Journal Issue 5, Pages: 1845-1851(2017)
- 作者机构：
  
  1. 太原理工大学电气与动力工程学院,山西,太原,030024
  2. 西安交通大学能源与动力工程学院,陕西,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20161417
  CLC： K124
- Online First：05 May 2017，
  
  Published：05 May 2017
- 稿件说明：
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ZHANG Jiajie, QU Zhiguo, MA Suxia, et al. Heat transfer performance of hollow aluminium structure filled with PCM[J]. CIESC Journal, 2017, (5): 1845-1851.
DOI：

ZHANG Jiajie, QU Zhiguo, MA Suxia, et al. Heat transfer performance of hollow aluminium structure filled with PCM[J]. CIESC Journal, 2017, (5): 1845-1851. DOI： 10.11949/j.issn.0438-1157.20161417.

摘要

实验研究了空心铝合金结构承载件内部填充相变材料的非稳态换热特征，通过测试试件加热面与背热面的温度响应分析了孔隙率、孔径等因素对换热过程的影响规律。研究结果表明：填充石蜡试件的换热过程可划分为熔化前显热区间、熔化区间、熔化后显热区间3个阶段；熔化区间的潜热吸收使得试件填充石蜡时的温控时间可达到不填充石蜡时的2.5倍；试件孔隙率越大或孔径越大，则其加热面与背热面的温差越大，熔化时间越长。

Abstract

The transient thermal performances of hollow aluminium structure filled with PCM (phase change material) are experimentally studied. The effects of related parameters with porosity and hole diameter are discussed. Results show that the heat transfer process can be divided into three stages

including the sensible heat region before melting

the melting region

and the sensible heat region after melting. The temperature control time for sample with PCM is 2.5 times than that without PCM due to the absorption of latent heat in the melting region. The sample with higher porosity or higher hole diameter behaves the larger temperature difference between heated and back surfaces

and also the longer melting duration time.

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