摘要
介绍了相变材料(PCM)的分类及应用,石蜡类有机相变材料具有较高的相变潜热,无过冷及析出现象,性能稳定、无毒、价格便宜,但也存在导热系数小、密度小的缺点;阐述了国内外为强化石蜡相变材料传热对其所作的大量研究;示出了常用相变传热的传热模型和相变传热问题的求解方法。
The assortment and application of PCM were introduced. Paraffin organic PCM has high phase changed latent heat. It has no supper-cooling and precipitation phenomenon. The performance is stable, innocuous and the price is cheap,but there are still some defects like low heat conductivity and low consistency. A great lot of studies about strengthening paraffin PCM＇s heat transfer appeared home and abroad were elaborated. The heat transfer model and resolvent of phase change heat transfer were presented.
出处
《制冷空调与电力机械》
2009年第1期15-19,14,共6页
Refrigeration Air Conditioning & Electric Power Machinery
基金
上海市大学生科技创新项目(No.080103)
关键词
蓄热技术
相变材料
石蜡
传热强化
传热模型
heat storage technology
PCM
paraffin
heat transfer augment
heat transfer model
