저온잠열저장을 위한 포접화합물의 과냉각 특성에 대한 연구 = A Study on Supercooling Characteristic of Clathrate Compoundfor Low Temperature Latent Heat Storage

다국어 초록 (Multilingual Abstract)

Materials that can store low temperature solidification latent heat are organic/inorganic chemicals, eutectic salt system and clathrate compound. Clathrate compounds the material that host in hydrogen bond forms cage and guest is included into it and combined. Crystallization of hydrate is generated at higher temperature than that of ice from pure water. And physical properties according to temperature are stable and congruent melting phenomenon is occurred without phase separation and it has relatively high latent heat. But clathrate compound still has supercooling problem occurred in the course of phase change and supercooling should be minimized because it affects efficiency of equipment very much. Therefore, various studies on additives to restrain this or latent heat storage methods are needed. In this study, it was investigated the cooling characteristics of the TMA-water clathrate compound including TMA(Tri-methyl-amine, (CH3)3N) of 20∼25 wt% as a low temperature latent heat storage material. And ethanol (CH₃CH₂OH) was added and its cooling characteristics were studied experimentally to restrain supercooling of TMA-water clathrate compound.