[1]郭茶秀,刘树兰..铝泡沫和石墨泡沫强化石蜡相变传热的数值模拟[J].郑州大学学报(工学版),2012,33(03):87-90.[doi:10.3969/j.issn.1671-6833.2012.03.022]
　GUÃ Chaxiu,LIU Shulan.Numerical Simulation of Heat Transfer Enhancement of Paraffin Wax PhaseChange with Mmetal Foam and Graphite Foam[J].Journal of Zhengzhou University (Engineering Science),2012,33(03):87-90.[doi:10.3969/j.issn.1671-6833.2012.03.022]
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铝泡沫和石墨泡沫强化石蜡相变传热的数值模拟()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
33卷
期数:
2012年03期
页码:
87-90
栏目:
出版日期:
2012-05-10

文章信息/Info

Title:
Numerical Simulation of Heat Transfer Enhancement of Paraffin Wax PhaseChange with Mmetal Foam and Graphite Foam
作者:
郭茶秀; 刘树兰.
郑州大学 化工与能源学院,河南郑州,450001, 郑州大学 化工与能源学院,河南郑州,450001
Author(s):
GUÃ Chaxiu; LIU Shulan
School of Chemical Engineering and Energy, Zhengzhou Univernity,Zhengzhou 450001,China
关键词:
铝泡沫;  石墨泡沫;  相变;  数值模拟
Keywords:
AI foam;  graphite foam;  phase change;  numerical simulation
分类号:
TB66 TB69
DOI:
10.3969/j.issn.1671-6833.2012.03.022
摘要:
针对有机相变材料石蜡导热系数低的问题,通过添加多孔介质的方法以强化石蜡相变传热,并运用CFD软件对石蜡相变传热系统进行二维数值模拟.模拟结果表明:铝泡沫和石墨泡沫都能有效提高相变材料传热速率,铝泡沫的强化传热效果明显高于石墨泡沫的传热效果.随着孔隙率减小,多孔介质/石蜡复合材料的有效导热系数增大,传热速率加快,凝固需要的时间缩短.并且,孔隙率越小,经过相同凝固时间,装置内对应点温度越低.
Abstract:
Aiming at the problem of low conductivity of organic phase change material, two-dimensional nu.merical simulation on heat transfer enhancement of phase change of paraffin wax by adding porous media wasconducted with the CFD software. The results showed that both Al foam and graphite foam could improve heattransfer rate effectively,and the efieet of heat transfer of Al foam is superior to that of graphite foam, and theefective thermal conductivity of porosity/ parafin wax composite materials is greater, heat transfer rate is fas.ter ; the solidification time shorten, And the temperature of corresponding points in device is lower after thesame solidfication time with the decrease of porosity.
更新日期/Last Update: 1900-01-01