吸附工质对温熵图及制冷循环分析

Temperature Entropy Diagram for Adsorbent/Adsorbate Pair and Analysis of Adsorption Refrigeration Cycle

借助Ｄ－Ａ方程［１］及纯物质的热力性质，建立了吸附工质对温度－熵－浓度（Ｔ－ｓ－ｘ）热力学关系．讨论了氨－活性碳６１０＃工质对的Ｔ－ｓ－ｘ线图、循环过程、循环性能及影响因素．计算结果表明，显热负荷使循环性能系数（ＣＯＰ）大幅降低，在某些不利情况下甚至相差一个数量级以上．结合Ｔ－ｓ－ｘ线图对循环过程有用能损失及改善循环性能的途径进行了简单分析．

On the basis of Dubinin Astakhov (D A) equation and the thermodynamic performances of pure substance,the thermodynamic relations of temperature entropy concentration ( T s x ) for adsorbent/adsorbate pair have been established.The T s x diagram,cycle processes,performance of cycle and its affecting factors are discussed for Ammonia Activated Carbon 610 # pair.The results of calculation manifest that the apparent heat load will reduce greatly the cycle's coefficient of performance;the differences may reach even more than one order of magnitude at some cases.Refering to T s diagram,the available energy lost in the processes and the ways of improving the cycle's performce are analyzed briefly.