祝丹婷,钱静,蔡蓉.混合水合盐作为储热相变材料的热物性能研究[J].包装工程,2015,36(1):65-69.
ZHU Dan-ting,QIAN Jing,CAI Rong.Thermal Characteristics of Hydrated Salt Mixture as a Phase Change Material for Heat Storage[J].Packaging Engineering,2015,36(1):65-69. |
| 混合水合盐作为储热相变材料的热物性能研究 |
| Thermal Characteristics of Hydrated Salt Mixture as a Phase Change Material for Heat Storage |
| 投稿时间：2014-10-23 修订日期：2015-01-10 |
| DOI： |
| 中文关键词: 储热 相变材料 热物性 混合水合盐 |
| 英文关键词: heat storage phase change material thermal properties hydrated salt mixture |
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| 中文摘要: |
| 目的 研究不同质量比的MgCl2·6H2O和Mg（NO3） 2·6H2O的混合水合盐作为储热相变材料的热物性能。方法 制备不同混合质量比的MgCl2·6H2O和Mg（NO3） 2·6H2O， 用温度记录仪测其步冷曲线，得到相变温度和过冷度， 再用高低温交变箱测试长期循环性能， 最后用DSC对相变材料循环前后的相变潜热进行测试比较。结果 质量比为5∶5的MgCl2·6H2O和Mg （NO3） 2·6H2O的混合水合盐相变材料表现出良好的热物性， 具有相变温度适合、 过冷度小、 相变潜热大和长期循环性能稳定等特点， 可以作为潜在的储热相变材料。 |
| 英文摘要: |
| To study the thermal properties of different mass ratios of MgCl2·6H2O and Mg(NO3)2·6H2O hydrated salt mixtures as phase change materials for thermal insulation packaging. Samples of MgCl2·6H2O and Mg(NO3)2·6H2O mixture were prepared with different mass ratios, and the cooling curves were measured to discover melting points and super cooling degrees by means of temperature logger. Then the hydrated salt mixtures were put into the high and low temperature alternating chamber to observe the thermal durability. The changes of latent heat were measured by DSC. It turned out that the mass ratio of 5∶5 was a potential phase change material for heat storage, with suitable temperature, no super-cooling, relatively big latent heat and stable cyclic performance. |
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