Abstract
Advanced adiabatic compressed air energy storage (AA-CAES) technology has the advantages of zero emissions, which can meet the demand of combined storage and supply of various forms energy in integrated energy system. However, considering the coordination and unity of various energy outputs, there are still gaps in the research on the characteristics of cooling, heating and electricity energy output of AA-CAES. In view of the above problems, this paper used Gatecycle to establish an AA-CAES system model. By changing key operating parameters such as compression heat return ratio, turbine inlet air flow rate and turbine inlet air pressure, the output characteristics and round trip efficiency RTE of the system are analyzed. The results show that by adjusting the compression heat return ratio, the RTE varies from 52% to 75%, the output ratio of cooling, heating and electricity varies from 32% to 44%, 0 to 24% and 32% to 60%, respectively. By adjusting the air flow rate of turbine inlet, the RTE keep at about 70%, the output ratio of cooling, heating and electricity varies between 31%–42%, 23%–24% and 36%–45%, respectively. By adjusting the inlet air pressure of the turbine, the RTE varies from 67% to 83%, and the output ratio of cooling, heating and electricity varies from 37% to 42%, 20% to 24% and 38% to 39%, respectively. This study can provide theoretical basis for the design of AA-CAES multi-energy supply system structure, provide guidance for adjusting the output power of AA-CAES system and improve the coordination of multi-energy output.
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The authors gratefully acknowledge the support provided by the National Key R&D Program of China (No. 2020YFD1100500).
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Kong, S., Di, Y., Li, Y., Li, X., Weng, Y. (2023). Research on Output Characteristics of Cooling, Heating and Electricity of Adiabatic Compressed Air Energy Storage System. In: Kim, J., Chen, Z. (eds) Trends in Environmental Sustainability and Green Energy. CGEEE 2022. Springer Proceedings in Earth and Environmental Sciences. Springer, Cham. https://doi.org/10.1007/978-3-031-27803-7_13
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