A Novel Combined Cooling, Heating and Power System Based on Compressed Air and Thermochemical Energy Storage Technology

被引：0
|
作者：
Xi G. [1 ]
Yao E. [1 ]
Zhong L. [1 ]
Zou H. [1 ]
机构：
[1] School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an
来源：
Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University | 2021年 / 55卷 / 12期
关键词：
Combined cooling; heating and power system; Compressed air energy storage; Multi-energy complementarity; Thermochemical reaction; Thermodynamic analysis;
D O I：
10.7652/xjtuxb202112001
中图分类号：
学科分类号：
摘要：
To solve the severe electricity consumption problem caused by renewable energy sources, the combined cooling, heating and power system based on compressed air and thermochemical energy storage technology is proposed. During the charging process, the compression heat energy is transformed to chemical energy in the form of syngas fuel through methanol decomposition reaction; during the discharging process, the syngas fuel is burned with the high-pressure air in the combustion chamber to drive the gas turbine for electricity generation. In addition, the steam Rankine cycle, absorption refrigeration cycle and heating sub-system are employed to output cooling and heating energy based on the different energy grades to achieve high-efficiency cascade utilization of waste heat and further improve power generation. The thermodynamic model of the system is established to investigate the performance of the proposed system by developing computer code. The results indicate that higher reaction temperature and lower reaction pressure could enhance the efficiency of methanol decomposition. The electricity production could be increased by increasing the pressure ratio of both air compressor and gas turbine, and decreasing the isentropic efficiency of air compressor and the air fuel ratio. The present work could provide theoretical foundation for further engineering application of the proposed system. © 2021, Editorial Office of Journal of Xi'an Jiaotong University. All right reserved.
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页码：1 / 8
页数：7
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