余热驱动的吸收-压缩复叠制冷循环性能及经济性分析  

Performance and Economic Analysis of Absorption-compression Cascade Refrigeration Cycle Driven by Waste Heat

作　　者：韩小龙 李见波[1] 孔祥强[1] 张琛 尹力 王志浩 Han Xiaolong;Li Jianbo;Kong Xiangqiang;Zhang Chen;Yin Li;Wang Zhihao(College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, 266590, China)

机构地区：[1]山东科技大学机械电子工程学院,青岛266590

出　　处：《制冷学报》2021年第6期28-35,共8页Journal of Refrigeration

基　　金：国家自然科学基金(51776115)资助项目。

摘　　要：本文提出一种新型吸收-压缩复叠制冷循环,该循环由内燃机余热驱动的高温级复合吸收-压缩制冷循环与动力驱动的低温级CO_(2)亚临界压缩制冷循环复叠构成。对不同制冷工质对在此循环中的性能进行对比分析;并进一步研究关键参数对复叠制冷循环性能的影响;最后进行了经济性分析。结果表明:该循环的理论性能优于两级复叠制冷循环;在冷凝温度为40℃、蒸发温度为-35℃条件下,R124-DMAC/R744性能优异,COP可达2.864,是较为理想的工质对,且年总成本较低为15150.14美元。This study proposes an absorption-compression cascade refrigeration cycle.The cycle consists of a high-temperature stage combined absorption-compression refrigeration cycle,which is driven by the waste heat of the internal combustion engine,and a low-temperature stage CO_(2) subcritical compression refrigeration cycle,which is driven by power.The performances of different refrigerant pairs in the cycle are compared,and the influence of key parameters on the performance of the cycle is further discussed.Finally,an economic analysis is performed.The results show that under the same condensation temperature of 40℃and evaporation temperature of-35℃,R124-DMAC/R744 exhibits excellent performance with a coefficient of performance of 2.864.It is an ideal working pair,and the annual total cost of the system is 15150.14 USD.

关 键 词：复叠制冷循环 余热回收 制冷剂 

分 类 号：TB615[一般工业技术—制冷工程] TB616