Thermodynamic analysis of cavern and throttle valve in large-scale compressed air energy storage system

2019 ◽  
Vol 183 ◽  
pp. 721-731 ◽  
Author(s):  
Shuyu Zhang ◽  
Huanran Wang ◽  
Ruixiong Li ◽  
Chengchen Li ◽  
Fubin Hou ◽  
...  
Keyword(s):  
Energy Storage ◽  
Thermodynamic Analysis ◽  
Large Scale ◽  
Storage System ◽  
Energy Storage System ◽  
Compressed Air ◽  
Compressed Air Energy Storage ◽  
Throttle Valve

scholarly journals Exergy storage of compressed air in cavern and cavern volume estimation of the large-scale compressed air energy storage system

2017 ◽  
Vol 208 ◽  
pp. 745-757 ◽  
Author(s):  
Wei He ◽  
Xing Luo ◽  
David Evans ◽  
Jonathan Busby ◽  
Seamus Garvey ◽  
...  
Keyword(s):  
Energy Storage ◽  
Large Scale ◽  
Storage System ◽  
Energy Storage System ◽  
Volume Estimation ◽  
Compressed Air ◽  
Compressed Air Energy Storage

scholarly journals Design of a New Compressed Air Energy Storage System with Constant Gas Pressure and Temperature for Application in Coal Mine Roadways

Energies ◽  
2019 ◽  
Vol 12 (21) ◽  
pp. 4188 ◽  
Author(s):  
Kangyu Deng ◽  
Kai Zhang ◽  
Xinran Xue ◽  
Hui Zhou
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Large Scale ◽  
Storage System ◽  
Coal Mines ◽  
Energy Storage System ◽  
Compressed Air ◽  
Compressed Air Energy Storage ◽  
Generation Capacity ◽  
Instability Energy

Renewable energy (wind and solar power, etc.) are developing rapidly around the world. However, compared to traditional power (coal or hydro), renewable energy has the drawbacks of intermittence and instability. Energy storage is the key to solving the above problems. The present study focuses on the compressed air energy storage (CAES) system, which is one of the large-scale energy storage methods. As a lot of underground coal mines are going to be closed in China in the coming years, a novel CAES system is proposed for application in roadways of the closing coal mines. The new system combines pumped-hydro and compressed-air methods, and features constant air pressure and temperature. Another specific character of the system is the usage of flexible bags to store the compressed air, which can effectively reduce air leakage. The governing equations of the system are derived, and the response of the system is analyzed. According to the equations, for a roadway with depth of 500 m and volume of 10,000 cubic meters, the power generation capacity of the CAES system is approximately 18 MW and the generating time is 1.76 h. The results show that the new CAES system proposed is reasonable, and provides a suitable way to utilize the underground space of coal mines.

Design and thermodynamic analysis of a multi-level underwater compressed air energy storage system

2016 ◽  
Vol 5 ◽  
pp. 203-211 ◽  
Author(s):  
Zhiwen Wang ◽  
David S.-K. Ting ◽  
Rupp Carriveau ◽  
Wei Xiong ◽  
Zuwen Wang
Keyword(s):  
Energy Storage ◽  
Thermodynamic Analysis ◽  
Storage System ◽  
Energy Storage System ◽  
Compressed Air ◽  
Compressed Air Energy Storage ◽  
Multi Level
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