铝合金高温储热材料及储热系统设计

Design of High Temperature Thermal Energy Storage Aluminum Alloy and System

对Al-7％Si合金，Al-7％Si-4％Cu合金和Al-33％Cu合金进行了差热扫描分析，设计了高温储热系统，并建立了相应的测试与评价方法。结果表明，3种合金的熔化潜热分别为305．5J／g，245．1J／g和202．7J／g，且Al-Si合金的相变潜热与含铝量成正比关系。该测试与评价方法可对储热材料的储热性能和储热系统的换热效率，热交换动力学等指标进行综合评价。

The properties of alloys of Al-- 7 % Si, Al-- 7% Si-- 4% Cu and Al-- 33 % Cu were analyzed by differential scanning calorimetry. The testing and evaluation method of high temperature thermal energy system was established. The results show that the latent heat of the three alloys is 305.5J/g,245.1J/g and 202.7J/g respectively. The latent heat of Al--Si alloy is proportional to the percentage of Al. The properties of the thermal energy storage materials and the heat exchange efficiency, heat exchange dynamics of the thermal energy storage device can be tested by the evaluation method.