【摘要】 基于相图计算，制备了三种碳酸盐-氯盐体系混合盐，利用同步热分析仪对所配制熔盐的熔点、潜热、初晶点、分解温度进行了测定，选出性能较好的混合盐，进而对其进行比热测试、热循环稳定性测试和蓄热成本计算。结果表明，0.18K₂CO₃-0.14Na₂CO₃-0.68NaCl混合盐具有较低的熔点、较高的潜热与分解温度和良好的热循环稳定性，与Li₂CO₃-Na₂CO₃-K₂CO₃混合熔盐相比具有更低的相变蓄热成本。更多还原

【Abstract】 Based on the phase diagram calculation,three mixed salts of carbonate-chloride salts were prepared,and the melting point,latent heat,freezing point and decomposition temperature of the prepared molten salts were measured by synchronous thermal analyzer to select out the mixed salts with better performance,followed by specific heat test,thermal cycle stability test and heat storage cost calculation.The results show that 0.18K₂CO₃-0.14Na₂CO₃-0.68NaCl mixed salt has a lower melting point,higher latent heat,higher decomposition temperature and good thermal cycle stability.This molten salt has a lower cost of phase change heat storage than the Li₂CO₃-Na₂CO₃-K₂CO₃mixed molten salt.更多还原