Exergy analysis and performance enhancement of isopropanol-acetone-hydrogen chemical heat pump  

作　　者：Min XU Jun CAI Xiulan HUAI 

机构地区：[1]Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China

出　　处：《Frontiers in Energy》2017年第4期510-515,共6页能源前沿（英文版）

基　　金：This work was supported by the National Key R＆D Program of China （2016YFB0601200） and the National Natural Science Foundation of China （Grant Nos. 51476173, 51576194）.

摘　　要：Exergy loss analysis was conducted to identify the irreversibility in each component of the isopropanol- acetone-hydrogen chemical heat pump （IAH-CHP）. The results indicate that the highest irreversibility on a system basis occurs in the distillation column. Moreover, the effect of operating parameters on thermodynamic performances of the IAH-CHP was studied and the optimal conditions were obtained. Finally, the potential methods to reduce the irreversibility of the IAH-CHP system were investigated. It is found that reactive distillation is apromising alternative. The enthalpy and exergy efficiency of the IAH-CHP with reactive distillation increases by 24.1% and 23.2%, respectively.Exergy loss analysis was conducted to identify the irreversibility in each component of the isopropanol- acetone-hydrogen chemical heat pump （IAH-CHP）. The results indicate that the highest irreversibility on a system basis occurs in the distillation column. Moreover, the effect of operating parameters on thermodynamic performances of the IAH-CHP was studied and the optimal conditions were obtained. Finally, the potential methods to reduce the irreversibility of the IAH-CHP system were investigated. It is found that reactive distillation is apromising alternative. The enthalpy and exergy efficiency of the IAH-CHP with reactive distillation increases by 24.1% and 23.2%, respectively.

关 键 词：waste heat reuse chemical heat pump exergyanalysis ISOPROPANOL 

分 类 号：TU0[建筑科学]