Eighteen kinds of mixed molten salts were prepared by using NaCl,NaCO3 and LiCl as raw materials.Among them,9 kinds of binary mixed molten salt of NaCl and NaCO3,9 kinds of molten salt of NaCl and LiCl.The DSC instrument was used to experimentally test its phase transition temperature and latent heat of phase change in order to select the best solar phase change thermal storage material.The conclusions shown that although NaCl and NaCO3 were inexpensive,their mixed molten salt was not suitable for solar power generation technology.The binary mixed molten salt of NaCl and LiCl was 5∶5,because it had neither too high melting point nor too low crystallization temperature,and the latent heat of condensation was high,which was more suitable for phase change storage.Thermal materials were used in solar thermal power generation.
Fan Qingzhu, Yan Quanying, Wang Jingxuan, Liu Chao
. Study on the preparation and heat storage performance of binary mixed molten salt[J]. New Chemical Materials, 2020
, 48(7)
: 64
-68
.
DOI: 10.19817/j.cnki.issn 1006-3536.2020.07.015
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