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一种新型高温复合相变蓄热材料的制备
Preparation of a New Composite Latent Thermal Energy Storage Material at High Temperatures
【摘要】 采用粉末烧结工艺将相变材料Na2CO3和基体材料MgO进行复合,制成一种新型高温复合相变蓄热材料.通过XRD和TG?DTA分析,结果表明:由Na2CO3/MgO构成的复合相变蓄热材料具有良好的化学相容性,在845℃时出现吸热峰.通过对其蓄热密度的计算可知:制备成的蓄热材料具有蓄热密度高的特点,能够实现高温蓄热.
【Abstract】 A new type of high temperature phase change material was obtained through the powder sintering method,compounding MgO as matrix and Na2CO3 as phase change material.XRD analysis shows that the material has good chemical compatibility and TG-DTA analysis shows that an endothermic peak arises at 845℃.Calculations indicate that the composite PCM is characterized by high thermal energy storage density and heat storage at high temperatures.
【关键词】 相变材料;
高温蓄热;
潜热蓄热;
【Key words】 phase change material(PCM); heat storage at high temperatures; latent-heat thermal storage;
【Key words】 phase change material(PCM); heat storage at high temperatures; latent-heat thermal storage;
【基金】 云南省自然科学基金重点项目(项目编号:2002C0003Z)
- 【文献出处】 昆明理工大学学报(理工版) ,Journal of Kunming University of Science and Technology(Science and Technology) , 编辑部邮箱 ,2006年05期
- 【分类号】TB34
- 【被引频次】27
- 【下载频次】604