Compressed air energy storage is an effective energy storage technology to solve the instability of wind power in distributed energy resources. In this paper, a multistage compressed air energy storage system optimization model is constructed based on the energy conservation equation. Then the system is optimized by differential evolution to improve the system efficiency. Optimal pressure ratios are proposed to distribute the pressures of compressors and expanders. The impact of pressure ratio distribution curve on the system energy efficiency suggests that the change curve of the characteristics vary in different heat exchanger performance. Results show that the change of thermal transfer reactor performance leads to the variety of optimal distribution pressure ratio and energy efficiency of the system. In addition, the differential ratio distribution factor can be effective on the pressure ratio of reasonable allocation. System efficiency optimization results increased by about 1% compared mean value.
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ASME 2018 12th International Conference on Energy Sustainability collocated with the ASME 2018 Power Conference and the ASME 2018 Nuclear Forum
June 24–28, 2018
Lake Buena Vista, Florida, USA
Conference Sponsors:
- Advanced Energy Systems Division
- Solar Energy Division
ISBN:
978-0-7918-5141-8
PROCEEDINGS PAPER
Study on Optimization of Pressure Ratio Distribution in Multistage Compressed Air Energy Storage System Available to Purchase
Huayu Zhang
Huayu Zhang
Tongji University, Shanghai, China
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Shang Chen
Tongji University, Shanghai, China
Tong Zhu
Tongji University, Shanghai, China
Huayu Zhang
Tongji University, Shanghai, China
Paper No:
ES2018-7181, V001T05A002; 8 pages
Published Online:
October 4, 2018
Citation
Chen, S, Zhu, T, & Zhang, H. "Study on Optimization of Pressure Ratio Distribution in Multistage Compressed Air Energy Storage System." Proceedings of the ASME 2018 12th International Conference on Energy Sustainability collocated with the ASME 2018 Power Conference and the ASME 2018 Nuclear Forum. ASME 2018 12th International Conference on Energy Sustainability. Lake Buena Vista, Florida, USA. June 24–28, 2018. V001T05A002. ASME. https://doi.org/10.1115/ES2018-7181
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