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| 无机水合盐相变储热材料的过冷性研究 |
| Supercooling of salt hydrates as phase change materials |
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| DOI： |
| 中文关键词: 相变材料 无机水合盐 过冷 成核剂 |
| 英文关键词:phase change materials,hydrated salts,supercooling,nucleating agents |
| 基金项目:广东省自然科学基金资助项目(59876010)。 |
| 曾翠华 张仁元 |
广东工业大学材料与能源学院 广州510090
(曾翠华)
，广东工业大学材料与能源学院 广州510090(张仁元)
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| 中文摘要: |
| 无机水合盐相变储能材料通常存在过冷现象，影响了该类材料所蓄热量的排放性能，如果过冷严重，储存的热量不能释放出来。就无机水合盐的过冷机理及非均匀形核的动力学机理进行了探讨，加入成核剂是降低过冷度的有效措施。 |
| 英文摘要: |
| Salt hydrates are used as thermal energy storage materials. The supercooling of these materials, which is generally present during extraction of the stored heat, reduces the utility of the materials and, if too severe, can completely prevent heat recovery. This paper discusses the nucleating mechanisms of the salt hydrates and comes to the conclusion that adding suitable nucleating agents reduces significantly the degree of supercooling. |
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