Research on thermo-economic characteristics of a combined cooling, heating and power system based on advanced adiabatic compressed air energy storage. (March 2022)

• Record Type: Journal Article
• Authors: Li, Peng; Hu, Qingya; Li, Guoneng; Wang, Binbin; Bai, Yaping; Han, Xu; Han, Zhonghe
• Is Part Of: Journal of energy storage. Volume 47(2022)
• Publication Date: 2022-03
• Subjects: Advanced adiabatic compressed air energy storage -- A combined cooling, heating and power system -- Thermodynamic and economic characteristics -- Sensitivity analysis -- Multi-objective optimization; AA-CAES advanced adiabatic compressed air energy storage -- CCHP combined cooling, heating and power -- HT hot tank -- CT cold tank -- PRV pressure regulating valve -- GSC gas storage chamber -- HE heat exchanger -- NSGA non-dominated sorting genetic algorithm -- TOPSIS the technique for order preference by similarity to an ideal solution; Energy storage -- Periodicals; Energy storage -- Research -- Periodicals; 621.3126
• DOI: 10.1016/j.est.2021.103590
• Languages: English
• ISSNs: 2352-152X

Abstract

Highlights: A combined cooling, heating and power system based on advanced adiabatic compressed air energy storage is established. Four combination models considering different operation conditions and gas storage chambers are proposed and compared. Influence of the maximum pressure ratio of gas storage chamber, compression power and expansion power on system performance. With certain optimal conditions, multi-objective optimization is conducted. Abstract: Based on advanced adiabatic compressed air energy storage, a combined cooling, heating and power system is constructed. The thermodynamic and economic characteristics under 4 different combinations of different operation conditions and gas storage chambers are compared. The sensitivity analysis of three key parameters is carried out. The results indicate that the system adopting sliding pressure operation and constant temperature gas storage chamber obtains the highest exergy efficiency and annual profit margin. While the system adopting constant pressure operation and constant temperature gas storage chamber obtain the highest energy density. As the maximum pressure ratio of the gas storage chamber increases, the energy densities increase, while the energy storage efficiencies and exergy efficiencies decrease. When the constant temperature as storage chamber is adopted, the system is not affected by compression/expansion power. When the constant wall-temperature gas storage chamber is adopted, higher compression/expansion power is conducive to energy storage efficiency and exergy efficiency, but an increase in compression power will reduce the system energy density. Moreover, multi-objective optimization under four strategies is carried out. The optimal annual profit margins of the four strategies are separately 41.13%, 47.49%, 15.56% and 22.63%. The optimal exergy efficiencies are 54.55%, 56.56%, 52.44% and 53.03%, respectively.