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中国科学技术大学热科学与能源工程系,安徽,合肥,230027
网络首发:2006-05-25,
纸质出版:2006-05-25
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张海峰, 葛新石, 叶宏. 管内流体换热式相变贮能系统的效率分析[J]. 化工学报, 2006,(5):1084-1088.
ZHANG Haifeng, GE Xinshi, YE Hong. Efficiency analysis of latent heat storage module with internal fluid flow[J]. CIESC Journal, 2006, (5): 1084-1088.
张海峰, 葛新石, 叶宏. 管内流体换热式相变贮能系统的效率分析[J]. 化工学报, 2006,(5):1084-1088. DOI:
ZHANG Haifeng, GE Xinshi, YE Hong. Efficiency analysis of latent heat storage module with internal fluid flow[J]. CIESC Journal, 2006, (5): 1084-1088. DOI:
通过对管内流体换热和管外相变材料(PCM)发生相变的贮能换热系统模型的分析和求解,研究了贮能单元的尺度特性、Peclet数、Stefan数和PCM导热性能的影响,探讨优化系统效率的可行途径.对典型的以水为换热介质和以石蜡为PCM的贮能单元的研究结果表明,PCM内部的传热强化是提高贮能效率的关键因素.
Based on the analysis and mathematical solution of a latent heat storage module with internal fluid flow
several factors
including the dimensional characteristics of the module
the Peclet number
the Stefan number and the thermal conductivity of the phase change material (PCM)
are investigated
and the ways to improve the systematic efficiency are also suggested.From the analysis of a typical module
in which water serves as the heat exchange medium and paraffin serves as the PCM respectively
the principal factor is to enhance the heat transfer inside the PCM.
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