Compressed Air Energy Storage System with Burner and Ejector

Dahui Yang, Xiankui Wen (), Jingliang Zhong, Tingyong Feng, Tongtian Deng and Xiang Li
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Dahui Yang: School of Electrical Engineering, Guizhou University, Guiyang 550025, China
Xiankui Wen: Electric Power Research Institute of Guizhou Power Grid Co., Ltd., Guiyang 550002, China
Jingliang Zhong: Electric Power Research Institute of Guizhou Power Grid Co., Ltd., Guiyang 550002, China
Tingyong Feng: School of Electrical Engineering, Guizhou University, Guiyang 550025, China
Tongtian Deng: Electric Power Research Institute of Guizhou Power Grid Co., Ltd., Guiyang 550002, China
Xiang Li: Electric Power Research Institute of Guizhou Power Grid Co., Ltd., Guiyang 550002, China

Energies, 2023, vol. 16, issue 1, 1-16

Abstract: The timescale of the energy-release process of an energy storage system has put forward higher requirements with the increasing proportion of new energy power generation in the power grid. In this paper, a new type of compressed-air energy storage system with an ejector and combustor is proposed in order to realize short-timescale and long-timescale energy-release processes under the non-supplementary combustion condition and ejector supplementary combustion condition, respectively. A simulation model of the new system is established in APROS software. The results of this study show that the new system can realize continuous power output when energy storage and energy release operate simultaneously, and especially when the ejector coefficient is 0.8 and burner thermal power is 10 MW, the power-generation time is 12.45 h and the total generated power is 140,052 kW∙h, which are 15.6 and 17.5 times greater those of the short-timescale condition, respectively. In summary, the compressed-air energy storage system with an ejector and combustor that is proposed in this paper can flexibly meet the demands of multiple timescales’ power generation.

Keywords: compressed-air energy storage; multiple timescales; ejector; burner (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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