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沸点不同的混合工质在吸热蒸发过程中是变温过程 ,这可以大大降低换热过程的不可逆损失。本文利用这一特点 ,介绍了应用氨 -水混合物作为工质的新型热力循环 ,包括作为联合循环底层循环的 Kalina循环和应用低温热源的电冷联产循环 ,并对这种循环的热经济性进行了分析 ,结果表明应用混合工质的热力循环会得到更高的循环效率
The mixed refrigerant with different boiling point is a variable temperature process in the process of endothermic evaporation, which can greatly reduce the irreversible loss of the heat exchange process. In this paper, we use this feature to introduce a new type of thermodynamic cycle using ammonia-water mixture as working fluid, including the Kalina cycle as the bottom cycle of the combined cycle and the electric-cold cycle using the low-temperature heat source. The thermal economy The results of the analysis show that the use of mixed refrigerant thermodynamic cycle will be higher cycle efficiency