用于热能储存的高效吸附复合材料  

Highly efficient adsorptive composite for thermal energy storage

作　　者：朱冬生[1] 吴会军[1] 李军[1] 程军[1] 范忠雷[1] 

机构地区：[1]华南理工大学化工与能源学院传热强化与过程节能教育部重点实验室,广东广州510640

出　　处：《化学工程》2006年第5期58-60,共3页Chemical Engineering(China)

基　　金：国家自然科学基金资助项目(20346001);广东省自然科学基金重点项目(04015950);教育部新世纪优秀人才支持计划教技司[2005]2号项目;广东省自然科学基金资助项目(011584)

摘　　要：通过把CaC l2填充到粗孔球形硅胶的骨架中,形成高效吸附储能复合材料,对其吸附和储能性能进行了实验测试,结果表明:在吸附储能材料的制备过程中,增大溶液中CaC l2的浓度,可明显提高复合材料的吸附平衡量;浸泡温度对复合材料的影响较小;而当浸泡时间达到4 h时,复合材料的吸附性能基本不变。这种吸附材料的储能密度高达1 170 kJ/kg,而且在90℃即可有效再生,是一种高效的热能储存材料。A new kind of thermal storage adsorbent was presented by implanting CaCl2 in the macropore silica gel. Experiments were carried out on the adsorption and thermal storage performance of the adsorbent. The influences of preparing conditions on the thermal storage property were also studied. Experimental results show that high CaCl2 concentration increases the equilibrium adsorbed amount of composite adsorbent remarkably, while high impregnation temperature increases that faintly. The adsorbed amount remains constant when the impregnation time is longer than 4 h. The thermal storage density is up to I 170kJ/kg, and the thermal storage composite can be efficiently regenerated at 90 ℃, which is highly efficient material of thermal energy storage.

关 键 词：吸附 复合材料 储能 开式循环 

分 类 号：TB33[一般工业技术—材料科学与工程]