相变蓄冷材料的合成及性能研究

Preparation and Properties of Eutectic Phase Change Materials

研究了不同无机盐对单一无机盐水溶液最低共熔点的影响,结果表明:添加无机盐可降低单一无机盐水溶液的最低共熔点;添加5％无机盐Kx可以使10．9％KNO3水溶液的最低共熔点从-2．5℃下降到-5．4℃,其相变潜热为307．16 kJ／kg,从而开发出一种新的铁路冷藏车相变蓄冷材料。

The effect of different inorganic on lowest eutectic point of unique inorganic salt solution was studied in this paper. The result showed that the lowest eutectic point of unique inorganic salt solution would fall by adding other inorganic salt. By adding 5 % inorganic salt XK to 10.9 % KNO3 solution, its lowest eutectic point falls from - 2.5℃ to - 5.4℃, and its phase transition enthalpy can reach to 307.16 kJ. kG - 1. As a result, a new eutectic phase change materials of railway- refrigerated lorry was synthesized .