PERFORMANCE OF MOLTEN SALTS PHASE CHANGE MATERIALS
Heat transfer medium in solar thermal power stations are used by molten salts materials. Quaternary molten salts which were composed of potassium nitrate, sodium nitrite, sodium nitrate when adding 5％, 10％, 15％ additive A, additive B, additive C respectively were prepared. Thermal stability and thermal cycling analysis of molten salts, XRD and DSC tests showed molten salt with 5％ additive A had higher thermal stability. Its optimum operating temperature would be increased to 550℃ from 500 ℃. This kind of heat transfer medium had high phase change latent heat and low melting point. So it could reduce the size of system and requirement for energy. The efficiency of its using energy was higher and the effect of energy saving was better. Besides, this kind of molten salt may also supply theoretical prediction for molten salts synthesis and basic method for project application.
Qiang Peng Jing Ding Xiaolan Wei Jianping Yang Xiaoxi Yang
No.135, XinGangxi Road, School of Engineering, Sun Yat-sen University, Guangzhou, 510275, China; Key Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education, South
国际会议
2007世界太阳能大会(Proceedings of ISES Solar World Congress 2007)
北京
英文
2007-09-18（万方平台首次上网日期，不代表论文的发表时间）