摘要
简述了碳酸熔盐在热化学催化反应、清洁燃烧、燃料电池、太阳能制氢中的应用研究,指出碳酸熔盐能够满足太阳能高温传热蓄热的要求。采用热分析技术TG-DSC、重量法、阿基米德法、回转振荡法等对(Li-Na-K)_2CO_3熔盐(LNK碳酸熔盐)的熔点、比热、相变潜热、密度、黏度和热稳定性等性质进行了表征。实验结果表明:LNK碳酸熔盐具有熔点低(404.89℃)、比热容(500℃,2.70kJ/(kg·K))和相变潜热(159.7kJ/kg)高、密度大(2g/cm^3)、黏度小(4C_p)以及在800℃下热稳定性好的特点,是一种比较理想的高温热载体。
Application of carbonate molten in thermal-catalytic chemical reaction, clean burning, fuel cells, solar hydro- gen production were illustrated, and carbonate molten can meet the high temperature of solar heat transfer and thermal storage was indicated. Melting point, heat capacity, latent heat of fusion and thermal stability of （Li-Na-K）2 CO3 molten salt（LNK carbonate molten salt） were characterized by thermal gravimetric, differential scanning calorimetry and gravime- tric, Archimedes and swing Oscillometry method. Results showed that LNK carbonate molten salt has low melting point （404.89℃）, high heat capaeity（500℃, 2.70kJ/（kg.K））, latent heat of fusion（159.7kJ/kg） and density （2g/cm3 ）, low viscosity（4Cp ）, and referable thermal stability below in 800℃and it was a relatively high temperature heat carrier.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2010年第7期863-867,共5页
Acta Energiae Solaris Sinica
基金
国家重点基础研究发展计划(973)项目(2010CB227103)
国家自然科学基金重点项目(50930007)
关键词
太阳能
传热蓄热
LNK碳酸熔盐
solar energy
heat transfer and thermal storage
LNK carbonate molten salt
